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Song X, McNair HM. Fast gas chromatography analysis of N-carbamates with cold on-column injection. J Chromatogr Sci. 2002;40(7):321-5doi: 10.1093/chromsci/40.7.321.
Song, X., & McNair, H. M. (2002). Fast gas chromatography analysis of N-carbamates with cold on-column injection. Journal of chromatographic science, 40(7), 321-5. https://doi.org/10.1093/chromsci/40.7.321
Song, Xiling, and McNair, Harold M. "Fast gas chromatography analysis of N-carbamates with cold on-column injection." Journal of chromatographic science vol. 40,7 (2002): 321-5. doi: https://doi.org/10.1093/chromsci/40.7.321
Song X, McNair HM. Fast gas chromatography analysis of N-carbamates with cold on-column injection. J Chromatogr Sci. 2002 Aug;40(7):321-5. doi: 10.1093/chromsci/40.7.321. PMID: 12201475.
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J Chromatogr Sci. 2002 Aug;40(7):321-5. doi: 10.1093/chromsci/40.7.321.

Fast gas chromatography analysis of N-carbamates with cold on-column injection.

Journal of chromatographic science

Xiling Song, Harold M McNair

Affiliations

  1. Department of Chemistry, Virginia Tech, Blacksburg 24061, USA.

PMID: 12201475 DOI: 10.1093/chromsci/40.7.321

Abstract

Direct gas chromatographic (GC) analysis of thermally labile N-carbamates is studied by using fast GC with cold on-column injection. With the greatly reduced injection temperature, short column lengths, high flow rate, and fast temperature-programming rate, the exposure of carbamates to high temperature is reduced and degradation can be avoided. Nine N-carbamates in EPA Method 531 are eluted without thermal decomposition. The relative standard deviation percentage for peak areas average 1.9% for all of the carbamates analyzed. A conventional GC instrument is employed to simplify the experiments. GC-mass spectrometry is used to monitor the decomposition peaks.

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