title: Environmental fate of SYP-1924 residues in rice field.
abstract: SYP-1924 is a new kind of herbicide developed by Shenyang Scicncreat Chemicals. This study has been carried out to investigate the environmental fate of SYP-1924 in rice-field system. An analytical method utilizing high-performance liquid chromatography (HPLC) with ultraviolet (UV) detection was described for the determination of new kind of herbicide SYP-1924 in rice, rice straw, soil and water. The dissipation of SYP-1924 in soil, water and rice straw was determined using the proposed method. The results showed that dissipation of SYP-1924 in rice straw and water were found to be very faster with half-life time shorter than 1.5 days. The half-life value of SYP-1924 was observed to be 4.5 days in soil. The ultimate residues of SYP-1924 in rice were found to be below the limits of the detection at level of recommended and 1.5 times recommended dosage with an interval date of 70 days.
authors.affiliation: Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Science, 100097 Beijing, China.
authors.forename: Xiaodan
authors.initials: X
authors.lastname: Zhu
authors.forename: Chunhong
authors.initials: C
authors.lastname: Jia
authors.forename: Min
authors.initials: M
authors.lastname: He
authors.forename: Pingzhong
authors.initials: P
authors.lastname: Yu
authors.forename: Li
authors.initials: L
authors.lastname: Chen
authors.forename: Ercheng
authors.initials: E
authors.lastname: Zhao
mesh_terms: D002681:China; D002851:Chromatography, High Pressure Liquid; D006540:Herbicides / Q000032:analysis* / Q000737:chemistry / Q000493:pharmacokinetics; D015394:Molecular Structure; D012275:Oryza / Q000254:growth & development* / Q000378:metabolism; D010573:Pesticide Residues / Q000032:analysis* / Q000097:blood* / Q000737:chemistry / Q000493:pharmacokinetics; D011810:Quinoxalines / Q000032:analysis* / Q000737:chemistry / Q000493:pharmacokinetics; D012989:Soil Pollutants / Q000032:analysis* / Q000737:chemistry / Q000493:pharmacokinetics; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry / Q000493:pharmacokinetics
chemical_list: D006540:Herbicides; D010573:Pesticide Residues; D011810:Quinoxalines; C551965:SYP-1924; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical