| Literature DB >> 15233545 |
William J Hunter1, L David Kuykendall.
Abstract
A simple method for the determination of volatile selenium compounds employing a gas chromatograph equipped with a photoionization detector is described. The method involves the direct injection of dimethylselenide (DMS) or dimethyldiselenide (DMDS) into the gas chromatograph; no derivatization of the sample was required. The photoionization detector was capable of detecting 60 pg (0.55 pmol) of DMS and 150pg (0.80pmol) DMDS. Sensitivity was 10-50 times greater with DMS and 4-20 times greater with DMDS when the photoionization detector was employed than when the flame ionization detector was employed.Entities:
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Year: 2004 PMID： 15233545 DOI： 10.1016/j.chroma.2004.03.005
Source DB: PubMed Journal: J Chromatogr A ISSN： 0021-9673 Impact factor: 4.759