Evaluation of HCH, DDT and Endosulfan Levels in Soil by Gas Chromatography/Tandem Mass Spectrometry

Autor: T. Chakrabarti, V. K. Kondawar, Koel Kumar, G. H. Pandya, S. Saravana Devi
Rok vydání: 2006
Předmět:
Zdroj: Soil and Sediment Contamination: An International Journal. 15:529-541
ISSN: 1549-7887
1532-0383
DOI: 10.1080/15320380600958919
Popis: Persistent organic pollutants (Σ DDX, Σ HCH, and Σ Endosulfan) were quantified in top soil and deep soil of a pesticide manufacturing industry. It was also possible to identify the presence of some other organochlorinated compounds (OCs) in the soil. A suitable multiresidue analysis of persistent organic pollutants in soil samples was developed based on soxhlet extraction and gas chromatography–mass spectrometry for quantifying parent compounds and degradation products, namely OCs and other miscellaneous pesticides. The quantification protocol was developed using Programmed Temperature Vaporization (PTV) and GC/MS/MS as identification tools. Extraction, PTV and MS/MS conditions were optimized for 11 pesticides with unambiguous spectral confirmation. The protocol has been applied to a large number of environmental samples and has proved to be reliable. The degradation ratios between the parent substances and their metabolites (DDX and HCH isomers) were calculated to determine whether there were any fresh i...
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje