PMID- 35236880 OWN - NLM STAT- MEDLINE DCOM- 20220413 LR - 20220413 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 12 IP - 1 DP - 2022 Mar 2 TI - Determination, residue analysis and risk assessment of thiacloprid and spirotetramat in cowpeas under field conditions. PG - 3470 LID - 10.1038/s41598-022-07119-1 [doi] LID - 3470 AB - The dissipation and residue levels of thiacloprid, spirotetramat and its four metabolites residues in cowpeas were investigated under field conditions. The QuEChERS technique with high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) was used to detect thiacloprid, spirotetramat and its four metabolites residues content in cowpeas. The recoveries were 81.3-95.1% at a spike level of 0.005-0.5 mg/kg, the relative standard deviations (RSDs) were 2.1-9.5%. The dissipation kinetics data showed that thiacloprid and spirotetramat in cowpeas were degraded with the half-lives of 1.14-1.54 days and 1.25-2.79 days. The terminal residues of thiacloprid and spirotetramat were 0.0255-0.4570 mg kg(-1) and 0.0314-0.3070 mg kg(-1) after application 2 times with a pre-harvest interval (PHI) of 3 days under the designed dosages. The chronic and acute dietary exposure assessment risk quotient (RQ) values of thiacloprid in cowpeas for different consumers were 2.44-4.41% and 8.72-15.78%, respectively, and those of spirotetramat were 1.03-1.87% and 0.18-0.32%, respectively, all of the RQ values were lower than 100%. The dietary risk of thiacloprid through cowpeas to consumers was higher than spirotetramat. The results from this study are important reference for Chinese governments to develop criteria for the safe and rational use of thiacloprid and spirotetramat, setting maximum residue levels (MRLs), monitoring the quality safety of agricultural products and protecting consumer health. CI - (c) 2022. The Author(s). FAU - Li, Kailong AU - Li K AD - Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, Hunan, People's Republic of China. lannuolkl@foxmail.com. FAU - Chen, Wuying AU - Chen W AD - Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, Hunan, People's Republic of China. FAU - Xiang, Wei AU - Xiang W AD - Crop Research Institute, Hunan Academy of Agricultural Science, Changsha, 410125, Hunan, People's Republic of China. FAU - Chen, Tongqiang AU - Chen T AD - Hunan Testing Institute of Product and Commodity Supervision, Changsha, 410017, Hunan, People's Republic of China. FAU - Zhang, Min AU - Zhang M AD - Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, Hunan, People's Republic of China. FAU - Ning, Ying AU - Ning Y AD - Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, Hunan, People's Republic of China. FAU - Liu, Yong AU - Liu Y AD - Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, Hunan, People's Republic of China. FAU - Chen, Ang AU - Chen A AD - Hunan Plant Protection Institute, Hunan Academy of Agricultural Science, Changsha, 410125, Hunan, People's Republic of China. angchen2006@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220302 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Aza Compounds) RN - 0 (Neonicotinoids) RN - 0 (Pesticide Residues) RN - 0 (Spiro Compounds) RN - 0 (Thiazines) RN - 4G7KR034OX (spirotetramat) RN - DSV3A944A4 (thiacloprid) SB - IM MH - Aza Compounds MH - China MH - Half-Life MH - Neonicotinoids MH - *Pesticide Residues/analysis MH - Risk Assessment MH - Spiro Compounds MH - Tandem Mass Spectrometry/methods MH - Thiazines MH - *Vigna/chemistry PMC - PMC8891356 COIS- The authors declare no competing interests. EDAT- 2022/03/04 06:00 MHDA- 2022/04/14 06:00 PMCR- 2022/03/02 CRDT- 2022/03/03 05:33 PHST- 2021/10/08 00:00 [received] PHST- 2022/02/14 00:00 [accepted] PHST- 2022/03/03 05:33 [entrez] PHST- 2022/03/04 06:00 [pubmed] PHST- 2022/04/14 06:00 [medline] PHST- 2022/03/02 00:00 [pmc-release] AID - 10.1038/s41598-022-07119-1 [pii] AID - 7119 [pii] AID - 10.1038/s41598-022-07119-1 [doi] PST - epublish SO - Sci Rep. 2022 Mar 2;12(1):3470. doi: 10.1038/s41598-022-07119-1.