Determination of twenty pesticide residues in Viscum coloratum by gas chromatography using cloud-point extraction.
- Author:
Shuting ZHANG
1
;
Xiaohui CHEN
;
Zhiguo YU
;
Xu SHEN
;
Meng GOU
;
Kaishun BI
Author Information
- Publication Type:Journal Article
- MeSH: Chromatography, Gas; methods; Limit of Detection; Octoxynol; chemistry; Pesticide Residues; analysis; Plant Extracts; analysis; Viscum; chemistry
- From: China Journal of Chinese Materia Medica 2009;34(20):2577-2580
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo establish a gas chromatography method for simultaneous determination of organochlorine and pyrethroid pesticide residues in Viscum coloratum by cloud-point extraction (CPE).
METHODPesticides were extracted with the non-ionic surfactant Triton X-100. The apparatus was gas chromatography with electron capture detector and the separation was performed on an Hp-5 column. The pesticide residues were calculated by external standard method.
RESULTGood linear relation was obtained over the range of 5-500 microg L(-1) for organochlorine and 10-1,000 microg L(-1) for pyrethroid. The limits of detection was 1.5-7.5 microg kg(-1). The average recoveries of organochlorine and pyrethroid were 74.15% -111.6% with corresponding RSD of 4.0% -9.1%.
CONCLUSIONThe sample and rapid method was applied to pesticide residues determination.
