کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
584569 | 1453184 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pressurized liquid extraction with water as a tool for chemical and toxicological screening of soil samples at army live-fire training ranges
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pressurized liquid extraction with water as a tool for chemical and toxicological screening of soil samples at army live-fire training ranges Pressurized liquid extraction with water as a tool for chemical and toxicological screening of soil samples at army live-fire training ranges](/preview/png/584569.png)
چکیده انگلیسی
Significant discrepancies in the results of risk assessments based on chemical and toxicity analyses of soils may arise through differences in the efficiency of the extraction or leaching methods used. A rapid technique that may be used in the screening phase of live-fire training ranges and suitable for extracting explosive residues is pressurized liquid extraction (PLE) with water. Therefore, PLE and the commonly used batch leaching method EN-124 57-2 were compared for their utility to extract specific residues from soil samples collected from the Canadian Forces Base (CFB) Petawawa, Ontario. After extraction the cytotoxicity of the samples were assessed in the L-929 growth inhibition assay. The PLE method yielded extracts suitable for direct use in the toxicity assay within 20Â min as compared to 24Â h for the batch leaching method. Analysis of the extracts showed that the PLE water extracts tended to give higher recoveries of explosive residues and the resulting exposure concentrations were confirmed by higher cytotoxicities. Furthermore, gas chromatography-mass spectrometry analyses showed that the samples contained significant amounts of several munition-related stabilizers and plasticizers of toxicological significance in addition to the analysed explosive residues. In conclusion, PLE using water is a promising extraction technique for both chemical and toxicological screening of soil samples from areas that may be contaminated with explosive residues.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 142, Issues 1â2, 2 April 2007, Pages 418-424
Journal: Journal of Hazardous Materials - Volume 142, Issues 1â2, 2 April 2007, Pages 418-424
نویسندگان
D. Ragnvaldsson, S. Brochu, H. Wingfors,