A liquid chromatography mass spectrometry-based method to measure organophosphorous insecticide, herbicide and non-organophosphorous pesticide in grape and apple samples

作者：Sinha Sukesh Narayan^*; Rao M Vishnu Vardhana; Vasudev K; Odetokun Martins

来源：Food Control, 2012, 25(2): 636-646.

DOI：10.1016/j.foodcont.2011.11.031

• Pesticides
• Liquid chromatography mass spectrometry
• Fruit
• Organophosphate insecticide
• Herbicide
• Non-organophosphate pesticide

The LC-MS/MS with Quick, Easy, Cheap, Effective. Rugged and safe method was used for analysis of eighteen pesticides in fruit samples. This method was found to be accurate (>= 99%), as it possessed limits of detection in the 0.002-0.087 ranges respectively. The coefficients of variations (>= 0.9999) were less than 2% at the low ng g(-1) concentration. Mean recoveries ranged between 97 and 101%, and % RSD were below 5%. The imidacloprid mean concentrations of red grapes (125.124 ng g(-1)) and green grapes (702.030 ng g(-1)) differed significantly (p < 0.05) between the grapes. Similarly, the fenitrothion mean concentration of red grapes (143.66 ng g(-1)) and green grapes (51.554 ng g(-1)) differed significantly (p < 0.001) between the fruits. The average concentration of quinalphos was 4.317 and 1.389 ng g(-1) differed significantly (p < 0.01) between the grapes. In apples imidacloprid, quinalphos, triazophos, ethion and acephate were also present. This study may be helpful in developing a regional exposure database and in the facilitation of health risk assessment due to pesticide exposure.

• 出版日期2012-6