Simultaneous Determination of β-Cypermethrin and Its Metabolite 3-Phenoxybenzoic Acid in Microbial Degradation Systems by HPLC–UV
| Autor: | Huaiyu Yuan, Likou Zou, Peiwen Luo, Qi Wu, Kai Yao, Shuliang Liu, Kang Zhou, Derong Lin, Qiusi Jia, Jianlong Li, Weiqin Deng, Li He, Ran Ji |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Detection limit Chromatography biology Pesticide residue Chemistry Metabolite 030106 microbiology 010401 analytical chemistry General Medicine Pesticide biology.organism_classification 01 natural sciences High-performance liquid chromatography 0104 chemical sciences Analytical Chemistry 03 medical and health sciences chemistry.chemical_compound Degradation (geology) Bacillus licheniformis Microbial biodegradation |
| Zdroj: | Journal of Chromatographic Science. 54:1584-1592 |
| ISSN: | 1945-239X 0021-9665 |
| DOI: | 10.1093/chromsci/bmw108 |
| Popis: | 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 β-cypermethrin (β-CY) and its degradation product 3-phenoxybenzoic acid (3-PBA) by liquid chromatograph-mass spectrometry. Few studies on the simultaneous determination of β-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 β-CY and 3-PBA simultaneously in microbial degradation systems. In this study, a novel β-CY degrading strain, Bacillus licheniformis B-1, was isolated from a tea garden soil, utilizing β-CY as a growth substrate. Good linear relationships between β-CY and 3-PBA were observed and the concentrations of reference solutions were between 0.50 and 60.00 µg/mL. Satisfactory stability and intra- and interday precision were obtained. The limits of detection were 0.06 and 0.13 µg/mL for β-CY and 3-PBA, respectively, and the corresponding limits of quantification were 0.21 and 0.34 µg/mL, respectively. Spiking recoveries for β-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 β-CY and 3-PBA in microbial degradation systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|