A refined method for analysis of 4,4′-dicofol and 4,4′-dichlorobenzophenoneReportar como inadecuado




A refined method for analysis of 4,4′-dicofol and 4,4′-dichlorobenzophenone - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Environmental Science and Pollution Research

, Volume 24, Issue 15, pp 13307–13314

First Online: 06 April 2017Received: 01 November 2016Accepted: 28 March 2017DOI: 10.1007-s11356-017-8956-y

Cite this article as: Yin, G., Athanassiadis, I., Bergman, Å. et al. Environ Sci Pollut Res 2017 24: 13307. doi:10.1007-s11356-017-8956-y

Abstract

The acaricide, dicofol, is a well-known pesticide and partly a substitute for dichlorodiphenyltrichloroethane DDT. Only few reports on environmental occurrence and concentrations have been reported calling for improvements. Hence, an analytical method was further developed for dicofol and dichlorobenzophenone DCBP to enable assessments of their environmental occurrence. Concentrated sulfuric acid was used to remove lipids and to separate dicofol from DCBP. On-column injection was used as an alternative to splitless injection to protect dicofol from thermal decomposition. By the method presented herein, it is possible to quantify dicofol and DCBP in the same samples. Arctic cod Gadus morhua were spiked at two dose levels and the recoveries were determined. The mean recovery for dicofol was 65% at the low dose 1 ng and 77% at the high dose 10 ng. The mean recovery for DCBP was 99% at the low dose 9.2 ng and 146% at the high dose 46 ng. The method may be further improved by use of another lipid removal method, e.g., gel permeation chromatography. The method implies a step forward in dicofol environmental assessments.

KeywordsKelthane On-column injection α-Cl-DDT Cod Analysis Responsible editor: Roland Kallenborn





Autor: Ge Yin - Ioannis Athanassiadis - Åke Bergman - Yihui Zhou - Yanling Qiu - Lillemor Asplund

Fuente: https://link.springer.com/



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