title: Analysis of the herbicide bispyribac-sodium in rice by solid phase extraction and high performance liquid chromatography.
abstract: Bispyribac-sodium is a commonly used herbicide. An analytical method employing HPLC with a diode array detector was developed to determine bispyribac-sodium residues in rice. The liquid-liquid partition and anion exchange solid phase procedures that were developed provide effective extraction and cleanup methods for analysis feasibility. Recoveries ranged from 83.98 to 98.51% with a relative standard deviation of 0.56-6.36% and sensitivity of 0.01 mg/kg. Bispyribac-sodium residues in rice were further confirmed by LC-MS. The proposed method was successfully applied to the analysis of bispyribac-sodium residues from a rice field in Jiangxi Province that had been treated using bispyribac-sodium.
authors.affiliation: Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China. wushimin@sjtu.edu.cn
authors.forename: Shimin
authors.initials: S
authors.lastname: Wu
authors.forename: Jun
authors.initials: J
authors.lastname: Mei
mesh_terms: D001565:Benzoates / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D006540:Herbicides / Q000032:analysis* / Q000737:chemistry; D012275:Oryza / Q000737:chemistry*; D011743:Pyrimidines / Q000032:analysis* / Q000737:chemistry; D052616:Solid Phase Extraction
chemical_list: D001565:Benzoates; D004785:Environmental Pollutants; D006540:Herbicides; D011743:Pyrimidines; C549011:bispyribac