2006•Chinese Journal of Analysis LaboratoryRequires access

Study on determination of trace amounts of lewisite in water with solid phase micro-extraction direct derivatization and GC-MS

MA Lan-zhi, Zhou Li-ming

Abstract

The trace lewisite in the water was determined by SPME coupled with gas chromatography-mass spectrometry(GC-MS).The operating conditions such as the agent dose of derivatization,extraction fiber,extraction time were studied.The linear range,detection limit,recovery and relative standard deviation(RSD) were 1.1～220 ng/mL,0.0001 mg/L(S/N=3),93.2%～104.4% and 3.4%,respectively.

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Key concepts: Chemistry, Derivatization, Chromatography, Detection limit, Gas chromatography–mass spectrometry, Extraction (chemistry), Trace Amounts, Solid phase extraction