Environmental fate of SYP-1924 residues in rice field.
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.
Zhu
Xiaodan
X
Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Science, 100097 Beijing, China.
Jia
Chunhong
C
He
Min
M
Yu
Pingzhong
P
Chen
Li
L
Zhao
Ercheng
E
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
D006540:Herbicides; D010573:Pesticide Residues; D011810:Quinoxalines; C551965:SYP-1924; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical