1. The high-resolution mass spectrometer is awaiting approval.

2. Mass spectrometer plays a key role of modern analytical technology.

3. A novel mini time of flight mass spectrometer (Mini- TOFMS ) has been developed to meet the growing demands for the partial pressure mass spectrometer according to the latest TOFMS developments.

4. The instrument directs the secondary ions to a mass spectrometer that identifies their compositions.

5. The maintenance experinence of old MAT isotope mass spectrometer has been discussed.

6. Mass Spectrometer is the most widely used high - end analytical instrument.

7. The small processing mass spectrometer(SPMS) is an industrial processing gas component analyzing and monitoring instrument using quadrupole mass spectrometer (QMS) as its analyzer.

8. Finally, the application prospect of the miniature quadrupole mass spectrometer array was expected.

9. Two - dimensional electrophoresis , mass spectrometer and bioinformatics are three main techniques of proteomics.

10. In this paper, an ion trap mass spectrometer which combines the technology of digital ion trap with the rectilinear ion trap(RIT) was studied.

11. The integration of soft photoionization and ion trap mass spectrometer is specially fit for in - suit detection of VOCs and noxious gas. Thus, there will be a far-ranging market prospect.

12. The principle and performance of a home-made miniature photoionization ion trap mass spectrometer was introduced.

13. Both teams used a high - resolution ion microprobe and a mass spectrometer to analyze the crystals.

14. X-RAY Powder analysis, X-RAY single crystal analysis, ir analysis, mossbauer spectrometer analysis, age determination by mass spectrometer, etc.

15. Some of the parameters affecting multielement determinations by ICP-MS have been studied on a VG PlasmaQuad ICP mass spectrometer.

16. We study the dissociation channel and mechanism of anisole in the experiment using the time of flight mass spectrometer with the interaction of laser.

17. An analysis on the lifetime of a small TEA CO2 laser has been performed by quadrupole mass spectrometer.

18. Fractions were then collected and analyzed using a triple quadrupole mass spectrometer with electrospray ionization and collision-induced dissociation to obtain structural information.

19. The technique requires the coupling of a particle accelerator and a mass spectrometer.

20. In addition to collecting particles for analysis in an ion and neutral mass spectrometer, and a cosmic dust analyzer, Cassini will photograph yet unseen parts near the moon's south pole.

21. It would be a stronger argument, Lunine says, had Cassini's ion and neutral mass spectrometer found sodium when it flew through the plumes this past March.

22. Monitoring of gas concentration changes has been realized by using KYKY CWQ value and a three way sampling pipe for LZL 204 quadrupole mass spectrometer.

23. The vacuum degas character and degas composition are analyzed(), by quadrupole mass spectrometer.

24. This paper report the design parameters, construction and specificity of a small magnetic mass spectrometer with an EI ion source, a sector magnetic analyser and a Faraday cup ion detector.

25. The distribution of water clusters under ambient conditions was first tested using a triple-quadRupole mass spectrometer coupled with a dielectric barrier discharge ionization source.

26. And the hydrogen and oxygen isotopic compositions heavy waters are calculated by the high - resolution mass spectrometer.

27. The device is readily removed and installed at ambient pressure without venting the mass spectrometer.

28. After coating, the impurities in the vacuum vessel of the HL 1M measured by the quadrupole mass spectrometer are largely reduced and are lower than those after the siliconization or lithium coating.

29. Methods Oligopeptide K16GRGDSPC was synthesized by solid-phase synthesis and identified by mass spectrometer and high pressure liquid chromatography.

30. Based on photoemission effect. we design a laser photoemission electron gun for electron impact ionization source of time of flight mass spectrometer.

31. The performance of contaminated SJX-1 quadrupole mass spectrometer studied in detail in our experiment.

32. The performance of a Quadrupole Mass Spectrometer is affected closely by its quadrupole field.

33. They grow their bacteria on a stainless steel plate, and use a laser to vaporise their signalling molecules, feeding these into a mass spectrometer to catalogue the molecules present.

34. A union operation method of chromatograph mass spectrometer was applied in analyses of volatile oil compositions in flowers and leaves of Radix Ginseng.

35. The quadrupole mass spectrometer is therefore applied to the high-power klystron to record the residua.

36. A quadrupole mass spectrometer used during launch vehicle testing and launching is given,(http:///mass spectrometer.html) and the trend of spacecraft leak monitor...

37. Method The fatty oil from Carum carvi L was extracted by ligarine petrum and analyzed by capillary gas chromatograph mass spectrometer(GC-MS) method.

38. The mass spectrometer technology has the ability to detect them in the mean time.

39. The generality is high. In principle, it can be used to combine with the quadrupole mass spectrometer made at home and abroad, and as general microcomputer itself.

40. The helium mass spectrometer leak detecting technology for a large vacuum chamber with the complex construction is described. Some problems in operation are shown and analyzed.

41. This article briefly describes the thoughts, key points and test result of a low noise pulse amplifier used in Laser Isotope Mass Spectrometer.

42. System stability (Ss) is one of the most important specifications of the Isotope mass spectrometer (IMS). It influences the quality of the data detected by the IMS directly.

43. The chromatograph - mass spectrometer has been made, and we can start printing at any time.

44. A VUV soft ionization source was adopted in the mass spectrometer, which can avoid the formation of fragment ions and analyze volatile organic compounds in ambient air without pre-separation.

45. METHODS: The compositions of microsphere before and after sonication were determined by grade - laser ToF mass spectrometer.

46. Figure B shows a scheme of a mass spectrometer coupled to a gas chromatograph.

47. Based on these considerations, a pulsed laser probe time-of-flight mass spectrometer has been built. The configuration and the preliminary experiment will also be briefly introduced in this paper.

48. Quadrupole mass spectrometer can be used in measuring pressure of dividing and analysis composition of material.

49. The total separating size(K1) of CD4 and CH4 was detected by quadrupole mass spectrometer on line, and the relation of K1 and vary chromatographic conditions and sample volume were tested.

50. The influence of some conditions of mass spectrometer andand repeatability of the quantitative analysis are discussed.