PMID- 27390099 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230120 IS - 1945-239X (Electronic) IS - 0021-9665 (Linking) VI - 54 IP - 9 DP - 2016 Oct 17 TI - Simultaneous Determination of beta-Cypermethrin and Its Metabolite 3-Phenoxybenzoic Acid in Microbial Degradation Systems by HPLC-UV. PG - 1584-1592 LID - 10.1093/chromsci/bmw108 [doi] AB - The wide use of pesticides in agriculture is necessary to guarantee adequate food production worldwide. However, pesticide residues have caused global concern because of their potential health risk to consumers. In this study, we could identify beta-cypermethrin (beta-CY) and its degradation product 3-phenoxybenzoic acid (3-PBA) by liquid chromatograph-mass spectrometry. Few studies on the simultaneous determination of beta-CY and its metabolites have been carried out so far; hence, we established a high-performance liquid chromatography method to determine the concentrations of both beta-CY and 3-PBA simultaneously in microbial degradation systems. In this study, a novel beta-CY degrading strain, Bacillus licheniformis B-1, was isolated from a tea garden soil, utilizing beta-CY as a growth substrate. Good linear relationships between beta-CY and 3-PBA were observed and the concentrations of reference solutions were between 0.50 and 60.00 microg/mL. Satisfactory stability and intra- and interday precision were obtained. The limits of detection were 0.06 and 0.13 microg/mL for beta-CY and 3-PBA, respectively, and the corresponding limits of quantification were 0.21 and 0.34 microg/mL, respectively. Spiking recoveries for beta-CY varied from 98.38 to 105.80%, with relative standard deviations (RSDs) varying from 1.49 to 3.93%. Spiking recoveries for 3-PBA varied from 99.59 to 101.20%, with RSDs varying from 0.58 to 3.64%. The proposed method has advantages of simplicity, rapidity, high accuracy, good separation and reproducibility; thus, it is ideally suitable for simultaneous determination of beta-CY and 3-PBA in microbial degradation systems. CI - (c) The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com. FAU - Li, Jianlong AU - Li J AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. AD - Chengdu Medical College, Chengdu, Sichuan 610500, P.R. China. FAU - Lin, Derong AU - Lin D AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. FAU - Ji, Ran AU - Ji R AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. FAU - Yao, Kai AU - Yao K AD - College of Light Industry and Food, Sichuan University, Chengdu, Sichuan 610065, P.R. China. FAU - Deng, Wei-Qin AU - Deng WQ AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. FAU - Yuan, Huaiyu AU - Yuan H AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. FAU - Wu, Qi AU - Wu Q AD - College of Life Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P. R. China. FAU - Jia, Qiusi AU - Jia Q AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. FAU - Luo, Peiwen AU - Luo P AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. FAU - Zhou, Kang AU - Zhou K AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. FAU - He, Li AU - He L AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. FAU - Zou, Likou AU - Zou L AD - The Laboratory of Microbiology, Dujiangyan Campus, Sichuan Agricultural University, Dujiangyan, Sichuan 611830, P.R. China. FAU - Liu, Shuliang AU - Liu S AD - College of Food Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, P.R. China. LA - eng PT - Journal Article PL - United States TA - J Chromatogr Sci JT - Journal of chromatographic science JID - 0173225 SB - IM EDAT- 2016/07/09 06:00 MHDA- 2016/07/09 06:01 CRDT- 2016/07/09 06:00 PHST- 2014/12/11 00:00 [received] PHST- 2016/03/30 00:00 [revised] PHST- 2016/07/09 06:00 [pubmed] PHST- 2016/07/09 06:01 [medline] PHST- 2016/07/09 06:00 [entrez] AID - bmw108 [pii] AID - 10.1093/chromsci/bmw108 [doi] PST - ppublish SO - J Chromatogr Sci. 2016 Oct 17;54(9):1584-1592. doi: 10.1093/chromsci/bmw108.