Simultaneous determination of 10 kinds of amide herbicide residues in dark tea by QuEChERS with Gas Chromatography-Triple Quadrupole Mass Spectrometry

Authors

YI Shou-fu, Hunan Institute of Food Quality Supervision Inspection and Research, Changsha, Hunan 410017, China; Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410017, China
LIANG Feng, Hunan Institute of Food Quality Supervision Inspection and Research, Changsha, Hunan 410017, China; Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410017, China
HE Qing-ke, Hunan Institute of Food Quality Supervision Inspection and Research, Changsha, Hunan 410017, China; Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410017, China
SONG Yang, Hunan Institute of Food Quality Supervision Inspection and Research, Changsha, Hunan 410017, China; Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410017, China
LIAO Yan-zhi, Hunan Institute of Food Quality Supervision Inspection and Research, Changsha, Hunan 410017, China; Hunan Provincial Key Laboratory of Food Safety Monitoring and Early Warning, Changsha, Hunan 410017, China

Abstract

Objective: A method for simultaneous determination of 10 amide herbicide residues in dark tea was developed by QuEChERS method coupled with gas chromatography-triple quadrupole mass spectrometry （GC-MS/MS）. Methods: After being extracted by acetonitrile and purified by QuChERS, the samples were separated by TG-5 SIL MS column （30 m×0.25 mm×0.25 μm）, then detected bymultiple reaction monitoring mode （MRM）. Blank matrix matching standard curve was used in quantitative analysis. Results: The calibration curves had a good liner relationship in the range of 0.001~0.500 mg/L with the correlation coefficients greater than 0.999. The limits of detection （LODs） and limits of quantitation （LQDs） of the method were in the range 0.001~0.002 mg/kg and 0.002~0.008 mg/kg, respectively. The average recoveries were 80.3%~103.2%, and the relative standard deviations were between 0.9% and 7.3%. Conclusion: The method can be applied to the simultaneous detection of amide herbicides in dark tea.

Publication Date

8-28-2021

First Page

57

Last Page

62

DOI

10.13652/j.issn.1003-5788.2021.08.009

Recommended Citation

Shou-fu, YI; Feng, LIANG; Qing-ke, HE; Yang, SONG; and Yan-zhi, LIAO (2021) "Simultaneous determination of 10 kinds of amide herbicide residues in dark tea by QuEChERS with Gas Chromatography-Triple Quadrupole Mass Spectrometry," Food and Machinery: Vol. 37: Iss. 8, Article 9.
DOI: 10.13652/j.issn.1003-5788.2021.08.009
Available at: https://www.ifoodmm.cn/journal/vol37/iss8/9

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