PMID- 37426269 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230718 IS - 2470-1343 (Electronic) IS - 2470-1343 (Linking) VI - 8 IP - 26 DP - 2023 Jul 4 TI - Determination of the Dissipation Dynamics and Terminal Residue of Bupirimate and Its Metabolites in Cucumber by QuEChERS-Based UPLC-MS/MS. PG - 23975-23981 LID - 10.1021/acsomega.3c02644 [doi] AB - Bupirimate is widely used as a highly active systemic fungicide. However, the frequent and heavy use of bupirimate has led to pesticide residues in crops that threaten human health and food safety. At present, there is limited research on the detection of ethirimol, which is the metabolite of bupirimate. This study established an ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method to simultaneously detect bupirimate and ethirimol residues based on QuEChERS pretreatment. The average recoveries of bupirimate and ethirimol in cucumber were between 95.2 and 98.7%, respectively, with relative standard deviations (RSDs) of 0.92-5.54% at fortified levels of 0.01, 0.1, and 5 mg L(-1). The established method was used to determine the residues in field trials in 12 regions of China, and the final residues of bupirimate were all less than the maximum residue limit (MRL). Since the risk quotient (RQ) of bupirimate and ethirimol in cucumber was less than 1.3%, the dietary risk assessment indicated that bupirimate and ethirimol had a low long-term dietary risk to the general population in China. This study provides effective guidance on the proper use of bupirimate in cucumber fields and a reference for establishing the MRL of bupirimate in China. CI - (c) 2023 The Authors. Published by American Chemical Society. FAU - Chen, Yue AU - Chen Y AD - Shandong Academy of Pesticide Sciences, Jinan, Shandong 250033, China. AD - College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Gao, Deliang AU - Gao D AD - Shandong Academy of Pesticide Sciences, Jinan, Shandong 250033, China. FAU - Wu, Yueming AU - Wu Y AD - College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Wang, Ling AU - Wang L AD - Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Fan, Weidi AU - Fan W AD - Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Gao, Yun AU - Gao Y AD - Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Wang, Wenli AU - Wang W AD - Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Su, Li AU - Su L AD - Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Li, Beixing AU - Li B AD - College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China. AD - Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Mu, Wei AU - Mu W AUID- ORCID: 0000-0002-9836-478X AD - College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China. AD - Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong 271018, China. FAU - Yu, Weili AU - Yu W AUID- ORCID: 0009-0004-4968-5992 AD - Shandong Academy of Pesticide Sciences, Jinan, Shandong 250033, China. LA - eng PT - Journal Article DEP - 20230625 PL - United States TA - ACS Omega JT - ACS omega JID - 101691658 PMC - PMC10323959 COIS- The authors declare no competing financial interest. EDAT- 2023/07/10 06:42 MHDA- 2023/07/10 06:43 PMCR- 2023/06/25 CRDT- 2023/07/10 05:07 PHST- 2023/04/18 00:00 [received] PHST- 2023/06/01 00:00 [accepted] PHST- 2023/07/10 06:43 [medline] PHST- 2023/07/10 06:42 [pubmed] PHST- 2023/07/10 05:07 [entrez] PHST- 2023/06/25 00:00 [pmc-release] AID - 10.1021/acsomega.3c02644 [doi] PST - epublish SO - ACS Omega. 2023 Jun 25;8(26):23975-23981. doi: 10.1021/acsomega.3c02644. eCollection 2023 Jul 4.