Dissipation and residue of 2,4-D in citrus under field condition.
The dissipation, residues, and risks of 2,4-dicholrophenoxyacetic acid (2,4-D) in citrus under field condition were investigated based on a simple ultra-performance LC (UPLC)-MS/MS method. The results indicated that the residue level of 2,4-D in citrus did not degrade gradually with sampling time under field condition. At pre-harvest intervals (PHI) of 20-40 days, 2,4-D residues were 0.021-0.269 mg/kg in citrus flesh, 0.028-0.337 mg/kg in whole citrus, and 0.028-0.376 mg/kg in citrus peel, all bellow the China maximum residue limit in citrus (1 mg/kg). Risks of 2,4-D were assessed by calculation of risk quotient, and the results revealed no significant health risks after consumption of citrus.
Citrus Research Institute, Southwest University, 400712, Chongqing, China.
Weijun
W
Chen
Bining
B
Jiao
Xuesu
X
Su
Qiyang
Q
Zhao
Dali
D
Sun
D015084:2,4-Dichlorophenoxyacetic Acid / Q000032:analysis*; D002681:China; D002853:Chromatography, Liquid; D002957:Citrus / Q000737:chemistry*; D004784:Environmental Monitoring; D013058:Mass Spectrometry; D008956:Models, Chemical; D010573:Pesticide Residues / Q000032:analysis*; D053719:Tandem Mass Spectrometry
D010573:Pesticide Residues; D015084:2,4-Dichlorophenoxyacetic Acid