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Determination of 29 Pesticide Residues in Onion by Gas Chromatography-tandem Mass Spectrometry

Hong Li

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Abstract

In order to improve the accuracy of inspection of pesticide residues in onions, a method based on gas chromatography-tandem mass spectrometry (GC-MS/MS) was developed for the determination of 29 pesticide residues in onion. The experimental results show that the method of GC-MS/MS can identify the 29 pesticide residues in onions. Within the mass concentration of 0.001～0.500 mg/L, the calibration curves showed a good linearity for all the congeners (0.987 0~0.998 7). The relative standard deviations were below 8.3% and the spiked recoveries were in the range of 79.6%～102.1%. Limits of detection ranged from 0.01 to 1.42 μg/kg.

About this research paper

What this paper is about

In order to improve the accuracy of inspection of pesticide residues in onions, a method based on gas chromatography-tandem mass spectrometry (GC-MS/MS) was developed for the determination of 29 pesticide residues in onion. The experimental results show that the method of GC-MS/MS can identify the 29 pesticide residues in onions. Within the mass concentration of 0.001～0.500 mg/L, the calibration curves showed a good linearity for all the congeners (0.987 0~0.998 7). The relative standard deviations were below 8.3% and the spiked recoveries were in the range of 79.6%～102.1%. Limits of detection ranged from 0.01 to 1.42 μg/kg.

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Available abstract

In order to improve the accuracy of inspection of pesticide residues in onions, a method based on gas chromatography-tandem mass spectrometry (GC-MS/MS) was developed for the determination of 29 pesticide residues in onion. The experimental results show that the method of GC-MS/MS can identify the 29 pesticide residues in onions. Within the mass concentration of 0.001～0.500 mg/L, the calibration curves showed a good linearity for all the congeners (0.987 0~0.998 7). The relative standard deviations were below 8.3% and the spiked recoveries were in the range of 79.6%～102.1%. Limits of detection ranged from 0.01 to 1.42 μg/kg.

Key concepts: Gas Chromatography/Tandem Mass Spectrometry, Chemistry, Chromatography, Pesticide residue, Pesticide, Mass spectrometry, Calibration curve, Gas chromatography–mass spectrometry

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Determination of 29 Pesticide Residues in Onion by Gas Chromatography-tandem Mass Spectrometry — Research Paper | ScholarLens