Establishment and Comparative Analysis of Enzyme-Linked Immunoassay and Time-Resolved Fluoroimmunoassay for the Determination of Trace Quinclorac in Environment

文献类型： 外文期刊

第一作者： Liu, Xue

作者： Liu, Xue;Guo, Yongfeng;Qiu, Jun;Fang, Song;Chen, Xiuzhai;Zhu, Xu;Tan, Xiaolei;Lin, Qing;Pan, Xi

作者机构：

关键词： quinclorac; enzyme-linked immunoassay; time-resolved fluoroimmunoassay; residue analysis

期刊名称：BIOSENSORS-BASEL （ 影响因子：5.743； 五年影响因子：5.972 ）

ISSN：

年卷期： 2022 年 12 卷 5 期

页码：

收录情况： SCI

摘要： As a common herbicide in farmland, there has been wide concern over quinclorac residue because of its potential risks to the environment and human health. For the detection and monitoring of quinclorac residue in the environment, enzyme-linked immunoassay (ELISA) and time-resolved fluoroimmunoassay (TRFIA) were established. The half-maximal inhibition concentrations (IC50) of ELISA and TRFIA were 0.169 mg/L and 0.087 mg/L with a linear range (IC20 -IC80) of 0.020-1.389 mg/L and 0.004-1.861 mg/L, respectively. Compared with ELISA, the limit of detection (LOD, IC20) and IC50 of TRFIA improved approximately 5-fold and 2-fold. The cross-reaction rates for the quinclorac analogs were less than 2%. The average recoveries of quinclorac in river water, paddy water, paddy soil, and brown rice samples were 77.3-106.1%, with RSDs of 1.7-12.5%. More importantly, the results of the two methods were consistent with that of the referenced method of UPLC-MS/MS (R-2 > 0.98). ELISA and TRFIA both showed good detection performance and could meet the requirements of the quantitative determination of quinclorac. Therefore, the proposed ELISA and TRFIA could be applied to the rapid and sensitive detection and monitoring of quinclorac residue in the environment.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序