Extraction of explosives from soil followed by gas chromatography-mass spectrometry analysis with negative chemical ionization

被引：32

作者：

Holmgren, Erik ^{[1
]}

Ek, Stefan ^{[1
]}

Colmsjo, Anders ^{[2
]}

机构：

[1] FOI, Swedish Def Res Agcy, Dept Energet Mat, S-14725 Tumba, Sweden

[2] Stockholm Univ, Dept Analyt Chem, S-10691 Stockholm, Sweden

来源：

JOURNAL OF CHROMATOGRAPHY A | 2012年 / 1222卷

关键词：

Explosives; GC-MS; Extraction; Soil; Chemical ionization; PRESSURIZED LIQUID EXTRACTION; POROUS GRAPHITIC CARBON; NITROAROMATIC COMPOUNDS; DEGRADATION-PRODUCTS; ORGANIC EXPLOSIVES; SAMPLES; 2,4,6-TRINITROTOLUENE; BIOREMEDIATION;

D O I：

10.1016/j.chroma.2011.12.014

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A new, simple and accurate method for extraction of explosives from soil was developed and validated. The method includes one hour gentle extraction of compounds from soil in acetonitrile:dichloromethane 50:50 at 30 degrees C. Further analysis was made with GC-MS using cool on-column injection and negative chemical ionization. The method increased the recovery of the more volatile products, generated higher accuracy and was extensively time-saving compared to the conventional EPA (US Environmental Protection Agency) 8330 method. Applications are demonstrated on commercial reference materials. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：109 / 115

页数：7

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