Determination of lambda. cyhalothrin in apples and soil by gas chromatography

被引：3

作者：

Chen Jiaojiao ^{[1
]}

Zhang Jing ^{[1
]}

Wu Sizhuo ^{[1
]}

Zhang Guanglong ^{[2
]}

Zhang Kankan ^{[1
]}

Hu Deyu ^{[1
]}

机构：

[1] Guizhou Univ, State Key Lab Breeding Base Green Pesticide & Agr, Key Lab Green Pesticide & Agr Bioengn, Res & Dev Ctr Fine Chem,Minist Educ, Guiyang 550025, Guizhou, Peoples R China

[2] Guiyang Environm Monitoring Ctr, Guiyang 550002, Guizhou, Peoples R China

来源：

CHINESE JOURNAL OF CHROMATOGRAPHY | 2016年 / 34卷 / 10期

关键词：

gas chromatography (GC); matrix effect; lambda-cyhalothrin; apple; soil;

D O I：

10.3724/SP.J.1123.2016.05026

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A modified QuEChERS-gas chromatography method was developed to determine the residues of lambda-cyhalothrin in apples and soil. Moreover, the matrix effects in apples and soil were investigated and evaluated. The apple and soil samples were extracted with acetonitrile and purified by graphitized carbon black (GCB). The linearity of lambda. cyhalothrin was good in the range of 0. 05-10 mg/L with correlation coefficients (R-2) more than 0. 999. The limits of detection and limits of quantification were 0. 12-0. 15 mu g/kg and 0. 38-0. 50 mu g/kg, respectively. With the matrix. matched calibration, the recoveries were 88. 29%-97. 65% and 80. 70%-98. 69% in soil and apples, respectively, which were in the acceptable range. Matrix enhancement effects were observed in the apple and soil samples. The established method can be applied on the residual analysis of lambda-cyhalothrin in actual apple and soil samples. The matrix. matched calibration solution can efficiently compensate the matrix effects of the lambda. cyhalothrin in gas chromatography. electron capture detector (GC-ECD) analysis.

引用

页码：1005 / 1010

页数：6

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