1 Having proposed suitable nomenclature for gas chromatography and ion exchange, the commission then developed a unified nomenclature for chromatography.

2 PFIB gas chromatography operational condition is given for reference.

3 Using solvent relief absorption gas Chromatography to estimate the concentration of the Benzene and benzene series in the room air.

4 A solid headspace capillary gas chromatography for the determination of residual organic solvents in asarone was established.

5 Gas chromatography has the properties of good repeatability and high reliability,[] and is an ideal way to determine octadecane amine.

6 The paper described the theory of static headspace gas chromatography , including multiple phase equilibration method, various gas-liquid phase ratio method and standard adding method.

7 To develop solution headspace gas chromatography for the determination of residual ethanol solvent in Piperaquine Phosphate.

8 There is no significant difference between gas chromatography and distillation by the results of F-test and t - test.

9 The comparison with conventional method, gas chromatography coupled to mass spectrometry(GCMS), illustrated the obvious advantages of the method for heavy gas oil analysis.

10 By gas chromatography, infrared spectrum and GC - MS quantitative and qualitative analysis, cyclopentanol was con firmed as the purposive product and it was more than 99% in content after separation.

11 The ECD Gas chromatography is high sensitive method for Di - n - cotyl phthalate determination.

12 Gas chromatography equipped with a nitrogen-phosphorus detector was used in the field residue decline study and final residues of malathion in citrus and soil.

13 The purpose was to set up the gas chromatography method of determining the pesticide residues of Aids-in, Dieldin and Endrin in vegetable and its products.

14 The pyrolysis gas chromatography is used for structural analysis of ethylene oxide-propylene oxide copolyether surfactants.

15 There is no mention of environmentally important techniques as gas chromatography, mass spectrometry, atomic absorption spectrometry, etc.

16 The primary impurities in butachlor technical were quantified by gas chromatography - mass spectrometry ( GC - MS ).

17 A new method was established for the determination of Para Red in hot chilli oil by gas chromatography - mass spectrum.

18 A method for the determination of 2,4- dichlorbenzoxy acetyl chloride of derivation before column, with gas chromatography has been developed.

19 Objective: To determine the contents of eicosapentaenoic acid (EPA) , docosapentaenoic acid (DPA) and docosahexaenoic acid(DHA)in harp seal oil by capillary gas chromatography.

20 OBJECTIVE:To determine organic solvent residual volume in fusidic acid by headspace gas chromatography.

21 The determining conditions of metaldehyde , paraldehyde, acetaldehyde and nicotinamide were investigated by gas chromatography with correction factors. The method was reliable and rapid.

22 Sol-gel method was used in preparing capillary column with polyoxyethylene sorbitan monolaurate as stationary phase for gas chromatography.

23 The characteristics flavoring compositions in liquor were determined by capillary column gas chromatography FID detector simultaneously.

24 The method for determination of acrylic nitrile and styrene monomer in polymer polyatomic alcohol by gas chromatography was introduced.

25 Objective To determine organic solvent residual volume in felodipine raw material by headspace gas chromatography.

26 A new method for the determination of residual chlorobenzene in perchloroethylene by headspace gas chromatography was developed.

27 Objective To find a method for the determination of dextroborneol in Xingnao Gutta Pills and plasma by gas chromatography(GC)and GC-mass spectrometry(GC-MS).

28 In this article, the content of the remaining monomer in polymethylmethacrylate was determined by gas chromatography with simplicity, convenience, quickness and accuracy via the bromination method.

29 In this paper, a method for determination pirimicarb combination with triadimefon by gas chromatography was described, by use OV-17 as stationary phase, propenyl phthalate as internal standard.

30 The surface physicochemical properties of hydroxyl terminated polybutadiene(HTPB)were studied by means of inverse gas chromatography(IGC).

31 The methods of determination of crotonaldehyde in various samples of the PVA(poly vinyl alcohol) producing line by gas chromatography and flame ionization detector are discussed in this paper.

32 In this paper, carbon bisuphide is used as extractor to extract the residual epihalohydrin from cationic etherified reagent, then the residual epihalohydrin is detected with gas chromatography.

33 The deactivation kinetics for the vapor-phase disproportionation of toluene over mordenite catalyst has been studied by using a combined unit of micro-reactor under pressure and gas chromatography.

34 Enrich trichloroethylene in water with the method of hexane extraction, and determine it by capillary column gas chromatography.

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35 An analytical method for buprofezin, fenpropathrin and fenvalerate in tea by gas chromatography with ECD was developed.

36 In this paper, Head-space gas chromatography analyzing trace volatile organic chlorides , such as tetrachloromethane, dichloro-ethane, and so on in water is introduced.

37 A capillary gas chromatography method for determination furfuryl alcohol was established through studying correction factors and range of sample size.

38 Objective To develop a gas chromatography method for the determination of residual organic solvents in acetylated lanolin.

39 The contents of camphor, mentholum, isoborneol and borneol in Guanxingao are determined by gas chromatography.

40 The preparation of divinylbenzene polymer monolithic columns and their applications in gas chromatography (GC) are discussed.

41 To establish direct injection gas chromatography for the determination of air Isophorone in Workplaces.

42 Cyanobenzene and m-cyanotoluane were quantitatively analysed by quartz capillary gas chromatography with SE-30 stationary liquid and FID detector, and n-dodecane as the internal standard.

43 An approach for the determination of trace amount oxazole and other impurities in industrial acrylonitrile by a capillary gas chromatography is presented.

44 The quantitative analysis of cyanazine by using capillary gas chromatography was reported in this paper. The coefficient of variation was 0 15%, and the recovery was 100 10%.

45 The paper has reviewed the analysis method, the gas chromatography and the near infrared spectroscopy for determining olefin and aromatic hydrocarbon content in gasoline.

46 You will use gas chromatography and refractometry to check the purity of your distillate and to estimate the relative concentrations of limonene and carvone in the oil.

47 Determination of methamidophos, malathion, fenthion residues in beestings by gas chromatography.

48 Methods The contents of trans fatty acid in several kinds of fat products were determinated and analysed by using gas chromatography.

49 A method for determination of chlorothalonil in the aerosol by capillary gas chromatography was described.

50 Total lipid in mice liver was extracted and fatty acid compositions of the phosphatidylcholine (PC) and phosphatidylethanolamine (PE) were assayed using gas chromatography.

51 An on-line analytical method of gas chromatography for determination of total carbon in pure hydrogen produced by PSA was studied.

52 From the gas chromatography, report the percentages of limonene and carvone in your original sample and in the fractions following distillation.

53 It is used as an inert gas in welding, rocket propulsion, balloon flight, hyperbaric chambers, deep-sea diving (see nitrogen narcosis ), gas chromatography, luminous signs, and cryogenics.

54 Spectrophotometric method and gas chromatography were the authorized national standard analytical methods to fusel oil.

55 A method for rapid simultaneous determination of imazalil, thiabendazole and pyrimethanil residues in citrus fruits by using gas chromatography was developed.

56 A method for the determination of phenol in printing ink by brominating derivatization and gas chromatography is described.

57 Before the oxidation treatment, the residues were characterized by gas chromatography mass spectrum(GC-MS) and fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS).

58 The sugar content in the hydrolysate of cocoanut shell is determined by treating samples containing sugar with derivatization extraction method and capillary gas chromatography.

59 OBJECTIVE To establish a capillary gas chromatography method for the determination of residual organic solvents in organometallic antitumor crude drug titanocene dichloride.

60 A method is described for the determination of endosulfan pesticide residues in Litopenaeus vannamai by capillary gas chromatography.

61 Objective:To establish a gas chromatography method for determination of methacrylonitrile in the air in a workplace by solvent desorption.

62 We used gas chromatography to study the quantity of IAA and ABA in pear young fruits of different varieties from self-pollination to first physiological fruit-falling period.

63 Gas chromatography was performed to analyze the content of allethrin in disc mosquito-repellent incenses.

64 The product of propane gas chromatography, second is the highest percentage of butane and isobutane is, The content of olefins are relatively low.

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65 During the course of the experiment, the student will be exposed to fractional distillation under vacuum, gas chromatography, refractometry, polarimetry , and IR absorption spectroscopy.

66 The biphenyl and phenanthrene in coal tar wastewater are first concentrated by extraction with benzene and then determined by gas chromatography with thin layer column.

67 A calorimetric system which was made by the combination of Differential Thermal Analysis(DTA) and Gas Chromatography for measuring adsorption heat is described in this paper.

68 During the experiments, the concentration of enflurane in the blood was measured intermittently by Gas Chromatography.

69 To establish gas chromatography for the determination of benzene series in the quality control samples.

70 In addition, reversed phase chromatography, pyrolysis gas chromatography and chemical degradation chromatography are discussed respectively.

71 By using a non-polar column separation, the equilibrium conditions for the determination of residual solvents in edible vegetable oils by headspace gas chromatography (HSGC) have been developed.

72 Gas chromatography was performed to analyze the content of allethrin in disc mosquito-repellent incenses. This test method proved to be rapid, simple and accurate.

73 Using acetone adds the water withdraws the atrazine in the soil, than extract with trichloromethane, after concentrated and settle to permit, use the capillary gas chromatography.

74 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.

75 The degradation dynamics of iprodione on greengrocery in greenhouse and at open field were studied with gas chromatography(GC).

76 It presents a simple method was presented for the separation and preparation of insect pheromones at the nanogram level by using gas chromatography(GC).

77 Quantitative determination of jasminal by gas chromatography was studied. A quick, convenient, accurate method was obtained in the analysis of jasminal by GC16A gas chromatograph.

78 A method was developed for the determining of endosulfan residues in exporting eel by gas chromatography.

79 This technique is developed on the basis of the Schaefer method (FRG) with the addition of a hydrogen extraction device to a conventional gas chromatography.

80 OBJECTIVE To develop a method for the determination of epoxyethane in oral pharmaceutical plastic bottles by headspace capillary gas chromatography.

81 A Gas Chromatography method was developed to simultaneously determine chloramphenicol and thiamphenicol residues in edible tissues of swine.

82 The purpose was to set up the gas chromatography method of determining the pesticide residues of Aldrin, Dieldin and Endrin in vegetable and its products.

83 Residues of pentachlorophenol and its sodium salt in aquatic products were determined by gas chromatography.

84 These models can better explain the change rules of gas chromatography retention indices for the aliphatic alcohols.

85 Following the CAS stipulation, LICP will now provide 11 services for analysing materials including infrared spectral radiometry, X-ray fluorescence, gas chromatography and mass spectrometry.

86 The method is cheaper, more rapid than gas chromatography, and suited to rapid testing industrial chlordane.

87 A method for determination of palmitic acid and stearic acid in leather fatliquoring agent was developed using the capillary gas chromatography(GC).

88 The article gave a minute description of operational method and skill in measuring trace free TDI in polyurethane prepolymer by gas chromatography.

89 Methods: Compositions of volatile oil in root of Ferula ferulaeoides korov were analyzed by capillary gas chromatography GC MS DS combination.

90 Methods of pyrolysis gas chromatography, infrared spectrum and Mossbauer spectroscopy have been used for the study of the existential state of iron in green vitriols and its preparations.

91 The surface properties of carbon fibres, which were oxidized or not, were studied by Inverse Gas Chromatography, electrobalance, and ESCA.

92 Methods The components and contents of fatty acids in spanish mackerel oil were determined by gas chromatography.

93 A solution headspace gas chromatography for the determination of residual ethanol solvent in Levamisole Phosphas was established.

94 A method for the determination of residue of fumigant sulfonyl fluoride in some cereals, such as maize, rice, barley and soya bean, is reported by headspace gas chromatography.

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95 Objective: To overcome the matrix effects on residue determination of some organophosphorus pesticides in vegetables and fruits by gas chromatography(GC).

96 The analysis of the volatile nonenzymatic degradation products and enzymatic degradation of glucoraphenin in red radish and red radish colour by gas chromatography is discussed.

97 Method: The muscone content in Gujukang Extract was determined by gas chromatography.

98 The residual dynamics of Malathion in rice plant, soil, water samples were determined by NP Gas Chromatography.

99 Carbon distribution and content of normal alkane and isoalkane in rubber waxes are measured by using high temperature gas chromatography.

100 Objective To establish the method for determination of bornyl acetate in Valeriana amurensis volatile oil by Gas Chromatography.

101 Contents of vinylidene chloride, acetonitrile, carbon tetrachloride and hexachloropropane in the raw hexachloropropane are determined by gas chromatography.

102 The determination of cyclamate in food by capillary column gas chromatography detector ( ECD ) is studied.

103 The long-chain base composition of several canine intestinal glycosphingolipids have been determined by gas chromatography and gas chromatography-mass spectrometry.

104 Determination of 1,1,1 trichloroethane in industrial waste gas by gas chromatography with electron capture detector was conducted.

105 For example, with the gas chromatography method, m-cresol, p-cresol and 2,6xylenol could not be separated, but with the last two methods the composition of each isomer could be determined.

106 Save a small portion (5 drops) of your original essential oil sample and of the distilled limonene and carvone fractions for Gas Chromatography and Refractive Indexes measurements.

107 Benzene homologues in water were separated and enriched by head - space single - drop microextraction and determined gas chromatography.

108 Objective To investigate the content of trans fatty acid in food by using gas chromatography.

109 The application of isotachophoresis method and ion chromatography in the analysis of chloroacetic acid and the improved measures of gas chromatography for analyzing chloroacetic acid were introduced.

110 The constraint index for shape selectivity of zeolite catalyst of ZSM type has been determined by means of gas chromatography in connection with a continuous flow micro-reactor under normal pressure.

111 The determination of cyclamate in food by capillary column gas chromatography with electrical capture detector(ECD)is studied.

112 The residues of 20% triazophos EC in rice field water, plant, rice shell and unpolished rice were determined by gas chromatography.

113 The authors suggested that gas chromatography in the big caliber capillary be used to measure the quantity of residual chloroethylene monomer in the wallpaper.

114 Objective:To establish a method for determination of Bromocriptine mesylate in Bromocriptine mesylate Tablets by Gas Chromatography. Methods: GC/FID.

115 Objective: To establish a gas chromatography method for determination of methoxychlor in workplace air.

116 Volatile fatty acids in the culture of G. difficile and the cecal con- tents of gnotobiotic mice were evaluated by gas chromatography and identified by gas chromatography-mass spectrography.

117 Methods:n-hexane and trichloroethylene were detected in 34 organic solvents with Gas Chromatography.

118 MethodsBy the orthogonal design and gas chromatography, taking the rate of Bornyl Acetate as the index, we optimized the extracting process conditions of volatile oil from Amomum villosum etc.

119 ChloroaceWl chloride, transformed into ester by alcoholysis with ethanol, was quantitatively analyzed by gas chromatography.

120 The analytic method of the capillary gas chromatography is discussed in the synthesis of hexanoic acid.

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