Simultaneously Determination of nine Kinds of Pesticide Residues in Dark Tea by Gas Chromatography-Tandem Mass Spectrometry（GC-MS/MS）

Authors

CHENG Shuilian, China National Center of Quality Supervision and Inspection of Dark Tea Products, Yiyang, Hunan 413000, China
HE Jianguo, China National Center of Quality Supervision and Inspection of Dark Tea Products, Yiyang, Hunan 413000, China
HUANG Jing, China National Center of Quality Supervision and Inspection of Dark Tea Products, Yiyang, Hunan 413000, China
LU Guiying, China National Center of Quality Supervision and Inspection of Dark Tea Products, Yiyang, Hunan 413000, China

Abstract

Developed a qualitative and quantitative analysis method which simultaneously determined nine kinds of pesticide residues in dark tea by gas chromatography in combination with triple quadrupole mass spectrometry. After being extracted by acetonitrile and purified by Cleanert TPT solid-phase extraction column,they were analyzed by GC-triple quadrupole MS.The results showed that the calibration cure for nine kinds of pesticide was the linear in the range of 0.4～3.2 mg/L and peak area,each correlation coefficient is above 0.99,and the relative standard deviation(RSD) was between 1.5% and 5.6%. At the same time, the average recovery was ranged from 81.6% to 98.6%,and the determining limits are below 1.0 μg/kg. This method which has advantages in great efficiency of separation, high accuracy, good reproducibility and easy and fast for operation.

Publication Date

9-28-2018

First Page

88

Last Page

91

DOI

10.13652/j.issn.1003-5788.2018.09.018

Recommended Citation

Shuilian, CHENG; Jianguo, HE; Jing, HUANG; and Guiying, LU (2018) "Simultaneously Determination of nine Kinds of Pesticide Residues in Dark Tea by Gas Chromatography-Tandem Mass Spectrometry（GC-MS/MS）," Food and Machinery: Vol. 34: Iss. 9, Article 18.
DOI: 10.13652/j.issn.1003-5788.2018.09.018
Available at: https://www.ifoodmm.cn/journal/vol34/iss9/18

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