Analysis of Volatile Organic Sulfur Compounds in Air by Membrane Inlet Mass Spectrometry
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- 作者：Raimo A. Ketola ; Timo Mansikka ; Marja Ojala ; Tapio Kotiaho ; and Risto Kostiainen
- 刊名：Analytical Chemistry
- 出版年：1997
- 出版时间：November 15, 1997
- 年：1997
- 卷：69
- 期：22
- 页码：4536 - 4539
- 全文大小：133K
- 年卷期：v.69,no.22(November 15, 1997)
- ISSN：1520-6882
文摘
The suitability of membrane inlet mass spectrometry(MIMS) for the analysis of volatile organic sulfur compounds (VOSCs) in air samples was studied. A custom-made gas calibrator proved to be a more accurate, rapid,and convenient way to produce gas standards than gasbags, and therefore, it was used in the evaluation of thesuitability of MIMS for the analysis of VOSCs in airsamples. The detection limits of volatile sulfur compounds were a few micrograms per cubic meter, themeasured dynamic ranges were 4 orders of magnitude,the calculated correlation coefficients were between0.9972and 0.9994 at concentration levels of 10-370
g/m3,and repeatabilities defined as a relative standarddeviationof six successive injections were in the range of1.3-7.3%.The results indicate that MIMS is an excellent methodforthe analysis of VOSCs in air samples.
g/m3,and repeatabilities defined as a relative standarddeviationof six successive injections were in the range of1.3-7.3%.The results indicate that MIMS is an excellent methodforthe analysis of VOSCs in air samples.