Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Science, 100097 Beijing, China.
Bull Environ Contam Toxicol. 2010 Jun;84(6):775-8. doi: 10.1007/s00128-010-0029-6. Epub 2010 May 7.
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.
SYP-1924 是沈阳科创化学品有限公司开发的一种新型除草剂。本研究旨在探讨 SYP-1924 在稻田系统中的环境归宿。本文描述了一种利用高效液相色谱（HPLC）-紫外（UV）检测法测定水稻、稻草、土壤和水中新型除草剂 SYP-1924 的分析方法。采用所建立的方法测定了 SYP-1924 在土壤、水和稻草中的消解动态。结果表明，SYP-1924 在稻草和水中的消解非常迅速，半衰期均短于 1.5 天。在土壤中，SYP-1924 的半衰期值为 4.5 天。在推荐剂量和推荐剂量 1.5 倍的间隔 70 天的时间内，水稻中 SYP-1924 的最终残留量均低于检测限。
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