Analysis of substituted benzene compounds in groundwater using solid-phase microextraction

Autor:	Safa Motlagh, David W. Potter, Catherine L. Arthur, Lisa M. Killam, Megan Lim, Janusz Pawliszyn
Rok vydání:	1992
Předmět:	Detection limit Chromatography Chemistry Analytical chemistry General Chemistry Solid-phase microextraction Toluene law.invention chemistry.chemical_compound Linear range law Environmental Chemistry Flame ionization detector Sample preparation Gas chromatography Benzene
Zdroj:	Environmental Science & Technology. 26:979-983
ISSN:	1520-5851 0013-936X
Popis:	rn Solid-phase microextraction (SPME) is applied to the analysis of benzene, toluene, ethyl benzene, and xylenes in groundwater. The inexpensive SPME method reduced the sample preparation time by 3-7-fold when compared to purge and trap methods. The relative standard deviation ranged from 3 to 5% for the single-operator relative standard deviation using a methyl silicone fiber. Limits of detection of 1-3 ppb (w/v) were obtained when using a fiber coated with 56-pm methyl silicone film and FID detection. The linear range extended from 15 to 3000 ppb (w/v). Solvents have been completely removed from the sample preparation step.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9545aa97cb0a3391a4537f6707a5a7f9 https://doi.org/10.1021/es00029a017 Zobrazit plný text záznamu