Journal
ANALYTICAL LETTERS
Volume 55, Issue 10, Pages 1637-1647Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00032719.2021.2019759
Keywords
Organophosphorus pesticides; porcine hair; QuEChERS; ultra-high performance liquid chromatography-tandem mass spectrometry; multiple reaction monitoring
Categories
Funding
- Jiangxi Key Research and Development Program [20201BBF61008]
- Agricultural Scientific Research Collaborative Innovation Project of Jiangxi [JXXTCX201702]
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The study presented a rapid and reliable method for simultaneous determination of organophosphorus pesticides in porcine hair, with linear relationships between 1.0 to 100 µg/kg and high accuracy and precision.
The indiscriminate use of organophosphorus pesticides poses a great threat to human health because of harmful substance bioaccumulation. We developed a rapid and reliable method for the simultaneous determination of chlorpyrifos, isocarbophos, methamidophos, omethoate, and triazophos in procine hair. The targets were separated by a C-18 column (2.1 x 100 mm, 1.8 mu m) and analyzed by electrospray ionization using the positive mode of a triple quadrupole mass spectrometer. The analytes had linear relationships from 1.0 to 100 mu g/kg. The correlation coefficients were all greater than 0.998. The limits of detection ranged from 0.4 to 0.9 mu g/kg, and the limits of quantification from 1.2 to 2.0 mu g/kg. The recoveries were from 76.1% to 106.2%. The intra-assay and inter-assay precision rates were from 1.6% to 4.4% and 2.3% to 6.9%, respectively. The intra-day and inter-day accuracy ranged from 2.5% to 9.3% and 3.2% to 8.9%, respectively. This method was a valid tool to monitor organophosphorus pesticides in breeding and livestock products.
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