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单词 Methyl
例句
1 And so, too, do carbon tetrachloride and methyl chloroform.
2 The main line is the methyl methacrylate that goes into paints, surface coating resins and, above all, plastics.
3 Unlike caffeine, these molecules have only two methyl groups attached to their xanthine skeleton.
4 Methyl tertiary butyl ether could work as substitute for lead but it is expensive.
5 A methyl group is a carbon with three hydrogen atoms attached.
6 ACR is a copolymer of methyl methacrylate with acrylate.
7 Organic cyanide, like methyl cyanide, propylene nitrile, Ding Jing and so on.
8 Methods: acid react with methyl alcohol and alcohol to synthesize methyl ester and ethyl ester compounds.
9 Finally, the solubility of methyl chloride in solvent naphtha was mensurated to accord to industrial application.
10 From the reaction of 2,3 dihydro 2 methyl 4 phenyl 1,5 benzothiazepines with diazozcetic ester an unexpected ring open product of the intramolecular rearrangement was obtained.
11 The radiation effect on poly (methyl methacrylate) with different tacticities was studied. It was proposed that chain scission process was in a kinetic equilibrium between scission and recombination.
12 Methanol. Methyl alcohol Carbinol. Wood alcohol. Wood spirit . Methyl hydroxide.
13 Two synthesis methods of N methyl diethanolamine and it's application in desulfuration of gas introduced.
14 Convenient and effective dyes for introducing into water flows include potassium permanganate, gentian violet, and methyl blue.
15 The mercury is often discharged into streams, where it accumulates in the form of methyl mercury.
16 Other reactive trace gases such as nitrous oxide and methyl iodide also remain at elevated and aberrant levels.
17 They differ only in the position of one of the methyl groups.
18 Many of the pills and capsules which are sold to slimmers as appetite suppressants consist largely of methyl cellulose.
19 As the flooded forests decompose, insoluble mercury in the soil and vegetation turns into soluble methyl mercury.
20 If that rate of increase continues it is estimated that methyl bromide could account for one-sixth of ozone loss by 2000.
21 Wilson has urged legislators to put off a scheduled March ban of the pesticide methyl bromide.
22 Study on the synthesis of 2 - diethylamino - 6 - methyl - 4 - hydroxy pyrimidine.
23 The synthetic processes of phthalic anhydride diglycol ester using sulfuric acid and methyl benzene sulfonic acid as catalysts, respectively, were investigated.
24 Using AlCl 3 as catalyst, N - cyanoethyl - p - methyl aniline was synthesized from p - methyl aniline and acrylonitrile.
25 Thymine: Organic compound of the pyrimidine family, often called a Base, consisting of a ring containing Both nitrogen and carbon atoms, and a methyl group.
26 The acid catalytic process is another way to produce bio-diesel, which has the advantage of fast reaction rate and high conversion ratio for the esterification of methyl group in free fatty acid.
27 The crystallinity of polyethylene decreased with increase of content of short branched chain methyl.
28 The invention also provides a solvent for the production process of knitted impregnated PU gloves, which is prepared from polyurethane resin and methyl l pyrrolidone according to a certain proportion.
29 Despite the ban, we've still found a way to make muscle magic with the ONLY real PROHORMONE still available today – Methyl 1-D.
30 Diisopropyl succinate was synthesized from succinic acid and isopropanol with p - methyl benzenesulfonic acid as catalyst.
31 The methyl phenyl silicone resin for heat resistant coatings was prepared by converse hydrolysis-polycondensation of chlorosilane.
32 The unsaturated fatty acid methyl esters (FAMEs) were separated from the fatty acid methyl esters mixture using urea adduct method.
33 Methyl morpholine is synthesized starting from dichloroethyl ether and methylamine and sodium hydroxide.
34 Used as a component of solvents in the process of the azeotropism, and could partly replace toluene, xylene and methyl isobutyl ketone (MIBK).
35 Take butadiene, styrene, and methyl methacrylate as main materials, assist with one or more of itaconic acid, maleic acid, fumarate, and not saturated carboxylates to modify.
36 This paper systematically introduces the properties of methyl glycolate, especially the synthesis methods of methyl glycolate and its application in organic synthesis.
37 In the process glyceride is transformed into fatty acid methyl ester and glycerol by - product.
38 Codeine has the same structure as morphine, but the phenol group masked as a methyl ether.
39 Complex 1 could catalyze the polymerization of methyl methacrylate and acrylonitrile.
40 A compare between at lower temperaturetemperature for synthesis of methyl orange was discussed in this paper.
41 Methyl tert—butyl ether(MTBE)is a powerful and rapidly dissolving agent of cholesterol gallstones up to now.
42 The yield of methyl stearate was over 98% in the optimum condition.
43 The relative removal rate of methyl and methylene group showed the shape of M with the increase of temperature.
44 The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination. The method avoids the utilization of cancerogenic chloromethyl methyl ether.
45 Synthetic methods of vanillin include o-methoxyphenol method, lignin method, safrole method, eugenol method, methyl hydroxybenzene method and microbial method.
45 try its best to collect and make good sentences.
46 Using the new method, 2 hydroxy 3 cyanmethyl 5 methyl acetophenone was synthesized in a short reaction period, and the yield was good.
47 HPLC determination of etodolac sustained release tablets and its methyl derivatives was established.
48 A novel monomer 2,6 - diphenoxybenzonitrile (DPOBN) was prepared by condensation of 2,6 -dichlorobenzonitrile with phenol in N - methyl pyrrolidone (NMP)in the presence of KOH and K2CO3.
49 The anesthetic activity and toxicity of some 3 - methyl fentanyl and 4 - methoxycarbonyl fentanyl analogs were reported.
50 Majority of characteristic flover compounds could be produced by yeast, except enanthol, methyl oleate, methyl dodecanoate and ethyl laurate.
51 A new bimetallic basicity catalyst used for synthesis of methyl isobutyl ketone from acetone and hydrogen.
52 The process condition of reaction was determined by means of orthogonal experiment. It shows that the yield of potassium oxide can amount to 90%, methyl alcohol can be recycled, and i...
53 Because of the stable methyl glucoside cyclical structure in its polyether, its rigid urethane foam is excellent in comprehensive performance with wide prospect of use.
54 Choosing the photocatalysis decomposition methyl orange as the reaction model, ultraviolet as light resource, the capability of catalyst was evaluated by decolor rate, etc.
55 Two times experiments of dosage reduction of methyl bromide(MB) and covering virtually impermeable film(VIF) were carried out in Qingzhou city(Shandong province, China) from 2001 to 2003 year.
56 A new process has been developed to synthesize p-aminophenol methyl ether from p-nitrophenol methyl ether by catalytic hydrogenation, using ammonia synthesis gas instead of pure hydrogen.
57 The preliminary results indicate that these chiral molecular tweezers not only recognize neutral molecules, but also show enantio-selectivity for D/L-amino acid methyl esters.
58 The products of methanol photocatalytic reaction included carbon dioxide, water, formaldehyde and methyl formate.
59 A novel addition reaction of methyl phenyldiazoacetate to enamine(which was prepared from acetophenone and secondary amine) was investigated using copper salt as a catalyst.
60 Eventually, the researchers found that two samples - segments 2 - methyl alcohol and indole ring - 6 - carboxylic acid.
61 Objective To explore the curative effects of 1 (3 fluorophenyl) 5 methyl 2 (1H) pyridone (FMP) on renal fibrosis in rats.
62 Prosthetic enzyme of mutase, catalyze reactions of group, mainly methyl, metachoresis in the interior of substrate molecule.
63 DMC has about 3 times the oxygen content as methyl tert-butyl ether(MTBE) and its synthesis is not dependent upon FCU isobutylene yields like MTBE.
64 The methyl group carbon atom has 6 valence electrons from its bonds to the hydrogen atoms because carbon is more electronegative than hydrogen.
65 The forth step is to synthesize 5 - hydroxy - 5 - methyl - 3,4 - diphenylisoxazoline.
66 Due to the lower mol ratio of the methyl carbonate to the glycerol, the consumption of the methyl carbonate is lowered.
67 Genes get switched off when a chemical mark, a methyl group, is added to the DNA.
68 It is a soft, flexible pad with a breathable cloth backing and gel layer containing methyl salicylate on one side.
69 The present invention relates to selective hydrogenation process of methyl methoxybenzoate to synthesize anisic aldehyde, and belongs to the field of fine chemical catalysis technology.
70 The title product is prepared by reacting sulfur trioxide with methyl ether.
71 In contrast with other typical methods, the conversion of methyl stearate in the disperse system could exceed 99% with only 4% of soap (mass ratio) which decreased greatly.
72 The Production, supply and demand of methyl tert-butyl ether (MTBE ) at home and abroad are reviewed and the techno-economic indices of production technologies are also compared in this paper.
73 The flotation experimental results showed that methyl benzyl arsonic acid is an effective collector for wolframite and cassiterite slime.
74 The application of microwave irradiation technique to remove methyl orange from wastewater was introduced.
75 Polyethylene glycol monomethyl ether(PGME) fatty arid esters were Preped fain methyl fatty acid ester and PGME in the presence of sodium methoxide as catalyst.
76 Oil in the redeployment of high-octane fuel components, blending the best choice programs, such as redeployment isooctane, cumene, alkyl benzene, methyl tert - butyl ether, alcohol burning Materials.
77 CONCLUSION: Target muscular injection of methyl cobalamin can promote the regeneration of peripheral nerve, and methyl cobalamin of high dosage can better play its role in nourishing injured nerve.
78 But the rats treated with pyridostigmine and methyl scopolamine were not effected significantly on motor activity to open-field exposure compared with rats dosed with saline.
79 Methods:Chronic atrophic gastritis and precancerous lesions in rats were induced with N methyl N nitro N nitrosoguanidine(MNNG).
80 Methyl tert-butyl ether(MTBE)is widely used as reformulated gasoline oxygenate. It is so much used that the amount of MTBE discharged into the environment is increasing continuously.
81 There arc many methods for the automatic categorization of images, among which the K-Nearest Neighbor algorithm is a case-based learning methyl and is a comparatively ideal automatic categorizer.
82 Methyl - methacrylate and butyl methacrylate are used as basic monomers to copolymerize into acrylic resin.
83 A new selective methyl - diethanolamine was used to substitute conventional monoethanolamine in a refinery gas desulfurization unit.
84 Among them, alcohol, 2- acetone, ethyl acetate, ethanoic acid, 3- methyl -1- butylacohol, 3- hydroxyl -2- methyl ethyl ketone made up the main volatile constituent fermentation sausage.
85 The article discussed the changing relation between total alkalinity content and titration equivalence point and changed situation of methyl orange in the different PH value color.
86 The glycosidic aroma precursors in leaves of Zhuye are mainly consisted of glycosides of cis 3 hexenol, linalool and its oxides, methyl salicylate, geraniol, benzyl alcohol and phenylethanol.
87 And it was used as adsorbent to decolor wastewater containing direct red 4B and methyl orange. The factors affecting adsorption were studied.
88 BACKGROUND: Methyl cobalamin, a derivative of vitamin B12, can promote the metabolism of nucleic acid protein, axoplasmic transport and axonal regeneration.
89 The team looked at methylation, in which a methyl group is placed onto cytosine in DNA sequences.
90 Seven kinds of soil fumigant, 35% XianKe, 98% Basamid, 32.7% Metham_sodium, 32.7% Simeidi, 33.6% Shimeidi, 98% Dazomet and 98% methyl bromide, were tested to control weeds in tobacco seedbed.
91 The absorption of methyl orange by ammonia leaching residue of manganese nodule is investigated.
92 Any time you see a c h 3, this means a methyl group.
93 Bromobenzenesulfonyl chloride was obtained from 2 bromothiophenol via coupling with chloromethyl methyl ether, oxidation chlorination by chlorine water to give 76% yield of the title compound.
94 Methyl 1-D is the real thing, and it does everything you expect from a prohormone despite the ban.
95 Methods Effects of subcutaneous injection of methyl scopolamine and pyridostigmine on stress-induced hyperthermia and motor activity were observed in rats by radio telemetry in an open-field chamber.
96 The use of chemically - methyl phenol and chloroacetic acid to synthesize methyl phenoxy acetic acid.
97 Tale , Mics, Silica, Proply paraben , Methyl paraben, Zine stearate, Vitamin E, Squalane.
98 The low-temperature fluidity of the bio-diesel fuel depended on the content and distribution of the Saturated fatty acid methyl esters in the fuel.
99 Effects of iodosulfuron - methyl - sodium on catalase in soil and soil respiration were studied by simulation in laboratory.
100 The result revealed that deblocking temperature was low when blocked by methyl ethyl ketoxime.
101 The process of preparing monoglycerides by alcoholysis of fatty acid methyl esters was investigated.
102 Glycerol monostearate with high purity was synthesized by transesterification reaction of methyl stearate and 3-hydroxyl of protected glycerol and hydrolyzation.
103 Conclusion Introducing the methyl group or a low alkyl group resulting in the high selectivity and increase of its activity.
104 This research synthesized of AP with VC and by-product methyl palmitate from Chinese Vegetable Tallow biodiesel, also determined HLB value of AP.
105 The present invention relates to an application of methyl eugenol for controlling plant disease.
105 try its best to gather and create good sentences.
106 AIM To study the positive inotropic effect of methyl polyglycoside (Mpg) on isolated guinea pig atria and its mechanism.
107 In this paper, various of modified potassium borohydride systems were studied in the reduction ofp - hydroxyphenylacetate methyl.
108 The esterification condition of Benzoic acid and antimicrobial activity of methyl benzoate were studied.
109 The synthesis of ethyl methyl carbonate(MEC) using the transesterification of ethanol and dimethyl carbonate(DMC) catalyzed by K 2CO 3 under certain temperature was studied.
110 The design feature, hardware configuration and software implementation of JX-300XP ACS ap- plied in methyl carbonate device in Heilongjiang Chemical Industry Group were introduced.
111 The reaction pathway may involve a homogeneous carbonylation of methanol to methyl formate followed by the heterogeneous hydrogenolysis of methyl formate to methanol.
112 Free radical solution copolymerization of methyl acrylate and acrylonitrile is carried out in DMSO at definite temperature using azodiisobutyronitrile(AIBN) as the initiator.
113 Three-step symplectic quantum propagation of wavepacket has been applied to study the photodissociation of methyl iodide.
114 Another is graft on surface , in which methyl methacrylate was introduced to clad nano - SiO 2.
115 Objective: to determine the content of Astragalus Root methyl glycoside in Huanwu thrombolytic capsule.
116 Thus the term dialkyl carbonate includes, for example, methyl ethyl carbonate.
117 The production status of the solvent refining with N - methyl - pyrrolidone ( NMP ) assolvent is summarized.
118 The salt effect of methyl acetate - methanol - water system by adding calcium chloride was studied at 20℃.
119 Latex particles were obtained by soapless emulsion copolymerization of styrene (St) and methyl methacrylate (MMA) in the presence of functional monomer acrylic acid (AA) .
120 A methyl group is a basic unit in organic chemistry: one carbon atom attached to three hydrogen atoms.
121 It is a rapid method for screening the tyrosine phenol lyase producer according to the size of the red color ring by using methyl phenol red as the indicator in the solid medium containing tyrosine.
122 In the second stage operation, a wire mesh - methyl methacrylate was as the material of cranioplasty.
123 Many believe that the scientific evidence of methyl bromide's ozone - depleting effects is undeniable.
124 The low-temperature fluidity of biodiesel depends mainly on the branching degree, content and composition of the saturated fatty acid methyl esters thereof.
125 UV-Vis spectrum indicated that the phenyl structure and naphthyl structure of methyl orange were destroyed, methyl orange solution was degraded.
126 Methyl tert-butyl ether (MTBE) is widely used as an addictive in unleaded gasoline to curb the air pollution caused by leaded gasoline.
127 A new type catalyst was prepared and applied to the oxidative esterification reaction of methacrolein (MAL) to methyl methacrylate (MMA).
128 Ambient conditions that include toxic gases such as hydrogen sulfide, sulfurous acid, nitrous acid, chlorine, bromine, methyl bromide, ammonium, etc.
129 Survival rate of Chinese hamster oocytes (A570) was tested by methyl thiazolyl tetrazolium (MTT) with spectrophotometric determination.
130 All - E long chain part was synthesized from solanesol, then condensed with the reductive product of 2,3 - dimethoxy - 5 - methyl -1,4- benzoquinone in the presence of dry ZnCl2.
131 There are two treatment options, heat treatment or fumigation with methyl bromide.
132 Then we tested the photosensitivity of POF whose core material was copolymer of azo-benzene and poly (methyl methacrylate) (PMMA) in experiment.
133 The results showed that in this process of alkaline hydrolysis the demethylation of poly(methyl glutamate)was faster, but debenzylation of poly(benzyl glutamate) was hardly processed.
134 This review mainly summarized the reaction mechanism and the method of methyl oxided into aldehyde group.
135 IR and CP/MAS13CNMR results show that the methyl L-glutamate side chains are bonded with chitosan through amide bond to form comb-like graft products.
135 Wish you will love and make progress everyday!
136 Phragmoplast of coil coating has been prepared by free radical polymerization and by using acrylic acid, methyl methacrylate, butyl acrylate as the raw materials.
137 Methyl orange and phenolphthalein are other indicators frequently used by chemists.
138 In DMSO-H2O mixture, using TPP and metal TPP's as sensitizers, EDTA as electron donor, methyl viologen was reduced to the blue methyl viologen cation radical upon irradiation with white light.
139 A mathematical regression model was presented in this study for the separation of sterols in methyl(esterification) of rapeseed oil deodorized distillate by central composite design.
140 Methyl thiazolyl tetrazolium(MTT) assay was employed to detect inhibition rate of CTL and its supernatant on 3AO cell, HCCC-9810 cells? 293T cells, respectively.
141 In addition, methylation and methyl rearrangement of arenes were mainly controlled by the abundance, source and evolution degree of soluble organic matter.
142 Other nations, however, including Austria, Finland, and Sweden have eliminated their major use of methyl bromide.
143 The research is about united manufacture of methyl ester of dichloroacetic acid and mercaptoacetic acid, using mother solution of monochloroacetic acid and sodium sulfhydrate as materials.
144 The influence of titanium isopropoxide on the anti-contamination agent curing speed in benzinum solvent , and the influence of methyl hydrogen silicone fluid and titanium isopropoxide content...
145 To comply with the special request of protecting the formation and environment against damage on oil-gas field development offshore, a new drilling fluid system—methyl glucoside(MEG)was developed.
146 The title compound was prepared from monomethyl sulfate and sodium acetyl ethenoxide, which was obtained from the reaction of acetone, sodium methoxide and methyl formate. The overall yield was 71.8%?
147 Jasmonic acid and its derivative methyl jasmonate, collectively called jasmonates, are phyto- regulators existing widely in plants and playing an important role in plant cells.
148 The study begins with the compare of shale inhibition abilities between methyl glucoside(MEG) and oil-based emulsion-drilling fluid and brine waters. Then, the environmental effect of MEG is analyzed.
149 Sulfurated seed oil and methyl seed oil have been synthesized with a method of elemental sulfur sulfuration.
150 Put into operation, the system is stable, safe and reliable, increased the yield and quality of ethyl methyl carbonate.
151 Methods:Chiglitazar was synthesized from 2-(4-fluoro)benzoylcyclohexanone, L-tyrosine methyl ester and 1,2-dibromoethane via 3 steps.
152 The paper reports the analysis of C14-C32 monobasic saturated fatty acid methyl esters in marine sediments using SCOT SE-30 glass capillary gas chromatography.
153 The method of determination methyl bromide in fumigation progress was developed by GC 5000 A.
154 M. S. Dissertation:The synthesis process of novel fungicide methyl thiadiazole formamide and its leading structural optimization.
155 CRL was reacted much more quickly with methyl 5 - N - ( 2, 6 - xylyl ) - alanate than that with R isomer.
156 The resultsindicated that methyl alcohol and ethanol extracts of pepper showed the strongest antioxidant effect.
157 Various overlay mediums , such as agar , starchgel, methyl cellulose and tragacanth are used.
158 Then branch silicon copolymer between the tetra-coordinated silicon monomer and methyl methacrylate (MMA) was gained through the free radical solution polymerization using AIBN as an initiator.
159 The application of acid catalysts in the coupling reaction of formaldehyde and methyl formate to form methyl glycolate and methyl methoxyacetate was investigated.
160 ANDROSTANE with Methyl Block and Ethyl Ester will give you the results you expect from a company with our history and a name like Masterdrol.
161 A spectrophotometric method is described for the determination of clenbuterol in pharmaceutical preparations using 2 - methyl indole.
162 Additives: vegetable-based emulsifier, lead-free drying agent (cobalt linoleate), methyl cellulose.
163 After that meeting, there was pressure to add methyl bromide as a controlled , ozone - depleting substance.
164 Some cases of accidental overdose of methyl salicylate and camphor have been fatal.
165 NO3(superscript -), methyl green, methyl orange and sodium dodecyl sulfonate showed some photoextinction effect on the photolytic rate of avermectin.
166 The structures of etodolac and its methyl ester were the same as those reported in literature.
167 In this paper, the methyl cinnamate was synthesized from cinnamate acid and methanol by using strongly acidic ion exchange resin as catalyst.
168 Manganese ore (PGM) and powder active carbon (PAC) are used in static experiment to decolorize dyestuffs Rhodamine B and methyl orange wastewater.
169 Methyl glycolate can be used as raw material for the synthesis of some important organic chemicals and good solvent.
170 Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.
171 The production of s-butanol is greatly stimulated with the increase in demand for methyl ethyl ketone worldwide.
172 Synthesis of methyl formate (MF) by carbonylation of methanol with only sodium methoxide as catalyst exists some shortages, such as low activity, rapid loss of activity and short catalyst life.
173 The intermediate is condensed with cytosine after reduction and methyl sulfonylation and then acquires gemcitabine hydrochloride after de-protection and salification.
174 Synthesis technology of cinnamyl methyl fumarate ( CMF ) containing α, ? ? - unsaturated carbonyl group and its antimicrobial activity was studied.
175 The enzyme catalyzed Chinese vegetable tallow and methyl stearate to produce cocoa butter equivalent was studied.
176 The sonochemical degradation of methyl orange was studied use a 40 kHz and 50 - 100 W ultrasound device.
177 Ingredients: water, Glycerol, Wasabi extract, Carbomer, Yeast extract, Tremella fuciformis extract, Bis(hydroxymethyl) Imidazolidinyl urea, Iodopropynyl butylcarbamate, Methyl paraben(), Fragrance.
178 After the transformed gas synthesizes the construction section after the compression to synthesize the methyl alcohol.
179 In chemical reaction, dioxide selenium, as gentle oxidant , can oxidized some group , such as hydroxide , methyl to aldehyde group , and was reduced to selenium itself.
180 Substitution of methyl group at 1,2 and 3 position on 1-methylindole, 2-methylindole and 3-methylindole inhibits initial microbial attack significantly.
181 Polybenzimidazoles cooking in printing ink is methyl ethyl ketone, agitate little vinegar, and so on.
182 Methyl isobutyl ketone ( MIBK) is one of the most important chemical products, which is widely used in the field of chemical engineering.
183 This study synthesis a metabolite of additive of Olaquindox named methyl - 3 - quinoxaline - 2 - carboxylic acid.
184 The various effects on synthesis of N - methyl carbamyl chloride were studied. Temperature is most important one.
185 Modified organosilicon waterproofing agent was prepared by way of emulsion polymerization with acrylate and methyl alcoholate silicate as raw materials, OP-10 and SDBS as emulsifiers.
186 The application result showed that the recovery rates of methyl ethyl ketone and toluene were higher than 95% attributed to the advanced technique design and the good adsorption materials adopted.
187 As a especially effective collector for processing copper sulphide ore, methyl sulphonamide features good selectiveness and strong collection.
188 The title protective coatings is prepared based on ethyl metasilicate and methyl trimethoxy silane as raw materials, which are then hydrolyzed in alcohols at the presence of acid catalyst.
189 In the absence of carboxy methyl cellulose sodium, some nonspherical particles were formed.
190 AIM To investigate the effect of N methyl berbamine(NMB)on ATP sensitive potassium currents( I KATP )in single ventricular myocytes of guinea pig.
191 Much is known about the "fifth base, " 5-methylcytosine, which arises when a chemical tag or methyl group is tacked onto a cytosine.
192 The invention relates to a preparation method of adefovir dipivoxil, in particular to a method for preparing adefovir dipivoxil dual oxygen methyl pivalate from adefovir.
193 The review introduced some preparation ways and the application of carboxyl methyl starch.
194 Objective:To observe the effects of methyl carboprost suppository on reduction of postpartum bleeding in cesarean section .
195 In most silicones , two organic groups (see functional group), usually methyl or phenyl, are attached to each silicon atom.
195 Wish you can benefit from our online sentence dictionary and make progress day by day!
196 Diisopropyl ether has higher octane number, higher amount of oxygen and lower Reid pressure, so it is likely to become an ideal substitute of the methyl tert-butyl ether.
197 Poly ( methyl methacrylate ) branched chain in MG molecule structure was destroyed when thermal and oxygenous aging.
198 The degradation of methyl orange was high, which was related with the peak value, pulse frequency and duty circle of positive pulse and anode area.
199 Triethyltin maleate and fumarate were synthesi 2 ed and copolymerized with styrene and methyl methacrylate.
200 BC-DH2004 catalyst was used in dehydrogenation of sec-butyl alcohol(SBA)to prepare methyl ethyl ketone(MEK).
201 The dynamic equilibrium data of methyl acetate on Calgon AC could be correlated by Freundlich equation.
202 The removal rate of methyl mercaptan(MM) and ethanethiol (ET) and its effect factors were mostly studied on kinetics.
203 Content of the project: utilize CO2 resource, to set up production lines of methyl carbonate, granular dry ice powder, salicylic acid, sodium carbonate and ethylene urea etc.
204 DCA, or dichloroacetic acid, is an analogue of acetic acid in which chlorine atoms replace two of the three hydrogen atoms on the methyl group.
205 A test was done to evaluate the possibility of substitution of methyl bromide in tobacco field.
206 For implementing continuous production of halogenated butyl rubber, we should exchange methyl chloride for n - hexane.
207 Development of down stream products and progress in synthetic technology of Methyl formate are summarized.
208 The cooling process of 0.70% carbon steel wires upon patenting in lead bath and CMC(Carboxyl Methyl Cellulose)aqueous solutions was measured respectively with the steel wire probes.
209 Objective: To study the influence of negative electrets on transcutaneous permeation of methyl salicylate through rat skin in vitro.
210 Investigated was the removal of organic sulfur from coal in methyl alcohol solution under sonic radiation.
211 The synthetic method of perfume 2 - methyl - 3 - methoxy pyrazine was investigated and better reaction conditions have been found.
212 The catalyst activity for degrading methyl orange was investigated by microwave induced oxidation process ( MIOP ).
213 The invention belongs to the chemical technology field, and discloses a method for preparing methyl ethyl ketone.
214 In this paper, the rate constant and equilibrium constant of the crack reaction of methyl silicane were obtained with the transition state theory and quantum chemistry calculation.
215 To the latter, the role of methyl oleate in influencing the partition of surfactant in oil phase and aqueous phase competes with its adsorption role at the interface.
216 Copolymerization products were fractionated by successive solvents extraction with boiling methyl ethyl ketone (MEK) and boiling tetrahydrofuran (THF).
217 Methyl isonicotinate was synthesized using isonicotinic acid and anhydrous methanol as raw materials in presence of solid super acid as catalyst.
218 The mode selective behavior in photodissociation of methyl iodide is illustrated.
219 The relative content of methyl and the relative content of methyl oleate the methanol - esterified diosgenin product.
220 The test data showed that the removal efficiencies of methyl orange could reach 96.24 %.
221 Methyl parathion hydrolase (MPH) was a novel member of phosphotriesterase.
222 Sodium methoxide used as catalyst for the synthesis of methyl formate by carbonylation of methanol was studied, and effect of three kinds of promoter was investigated.
223 The experimental method of triphenyl methyl radical, triphenyl methyl cation and triphenyl methyl anion were reviewed.
224 The green production processes in substitute of ACH mainly include isobutene processes, ethylene processes, isobutane processes and methyl acetylene processes, which will be discussed in this paper.
225 With methyl methacrylate the particle diameter increases linearly with conversion indicating particle aggregation.
226 Other: The dyewood is known as the suppression histidine decarboxylase(), the catechu phenol - O - methyl shift enzyme action.
227 Large, predatory fish — such as tilefish, swordfish and king mackerel — tend to have higher levels of methyl mercury than do smaller fish because they're higher in the aquatic food chain.
228 The analytical method for sodium methyl mercaptide was established based on the reaction in quantity between methyl mercaptan and iodine at the base condition.
229 The main deactivation reason of catalyst in low temperature methanol synthesis is that CH 3ONa is transformed to weaker bases such as sodium formate and methyl carbonate.
230 The methyl acrylate emulsion was prepared in the anionic polyurethane emulsion.
231 In this paper, the cedrol methyl ether was synthesized by sodamide method.
232 Methyl thiazolyl tetrazolium(MTT) method was used to compare the ability of growth and proliferation between rat dental pulp stem cells and marrow mesenchymal stem cells.
233 The effects of HFE on lung cancer cell YTLMC-90 were proceeded by means of three assays as follows: Methyl thiazolyl tetrazolium (MTT) assay, cell double time analysis and colony forming assay.
234 From campholenic aldehyde , the sandalwood fragrance campholenyl methyl cyclohexanol was prepared, its structure is analyzed and identified.
235 Phenazine methyl sulfate was synthesized from this phenazine with a purity of above 98%.
236 Results Methyl isocyanate, chloride and oxide of Quercetin were prepared.
237 High-boiling silicone oil is methyl silicone that contains active methoxy, ethoxy groups , it easily cures film.
238 It can be concluded that the water uptake of cured polymer could be restricted by the incorporation of hydrophobic fluorene rings and methyl groups.
239 The method is simple, accurate and reproducible and it can be used for the determination of methyl salicylate in Gaultheria yunnanensis(Franch)Rehd.
240 The reflection spectrum of Methyl Red doped PMMA was measured and modified.
241 Methyl dihydrojasmonate was synthesized from 2 pentyl 2 cyclopentanone and methyl malonate by condensation and decarboxylation.
242 Methyl alcohol in inner phase and sodium chloride in external phase could increase the drug loading.
243 The study results of the toxicity of methyl tertiary butyl ether (MTBE) were reviewed.
244 The present invention features the multiple phase selective hydrogenation process to synthesize anisic aldehyde with methyl methoxybenzoate.
245 Sixteen anthrapyridone solvent dyes were synthesized by different Methods: Using 16 amines and 4 - bromo - N - methyl - asstarting material.
246 The writer analyzed the and disadvantage on phasing - out methyl bromide in China.
247 They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.
248 This thesis focused on the identification of three VrHsc70 proteins in Vigna radiata and the analyses of methyl jasmonate (MeJA)-induced genes in Bupleurum kaoi adventitious roots.
249 Acylation activity of hydroxyl groups in methyl cholicate has been determined by the use of methacryloyl chloride, methacryloyl anhydride and methacrylic acid as the acylating agents.
250 A new method for the simultaneous determination ofp aminobenzoic acid and methyl p aminobenzoate was proposed.
251 Talc, Mica, Silica, Propyl paraben , Methyl paraben, Art - Pearl, Zinc stearate, Vitamin E, Squalane, Iron oxdied black.
252 Methyl 1-D may be one of the most potent androgens since the prohormone ban in January 2005.
253 Conclusion The main chemical components of the fatty oil in Carum carvi L. were dibutyl phthalate, octadecanoic acid methyl ester, eicosanoic acid methyl ester, he...
254 In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration.
255 The Rhodamine 6G doped microlens array was fabricated using the solution of Methyl Methacrylate (MMA) monomer and Polymethyl Methacrylate (PMMA) mixture.
255 is a sentence dictionary, on which you can find good sentences for a large number of words.
256 Results Methyl scopolamine, a peripheral muscarinic antagonist, leaded to a significant attenuation in the hyperthermic response to open-field exposure compared with rats dosed with saline.
257 The viscosity of saturated liquid methyl tert-butyl ether(MTBE) was presented over the temperature range from 268.123 to 373.131 K with a calibrated Ubbelohde-type capillary viscometer.
258 People with Parkinson's or taking L-dopa should not use methyl donors like TMG without a physician's specific approval and supervision.
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