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Position: Home > Articles > Study on Determining the Suspending Rate of 40% Acetochlor+Atrazine+Chlorotoluron SE Modern Agrochemicals 2007,6 (2) 26-28

40%乙·莠·绿悬乳剂悬浮率测定方法研究

作  者:
翟茹环;慕卫;马超;刘峰
单  位:
山东农业大学植物保护学院
关键词:
乙草胺;莠去津;绿麦隆;悬浮率;测定
摘  要:
为准确测定40%乙·莠·绿悬乳剂的悬浮率,比较了萃取法与蒸干法的可行性。试验证明不同配方制剂萃取率不同,萃取4次后的萃取率乙草胺在64.7%~83.9%之间,莠去津在84.6%~93.8%之间。故对于乙·莠·绿制剂不适合采用萃取法测定悬浮率。采用(80±1)℃水浴将样品蒸至含水量在40%~60%之间,该方法莠去津、乙草胺和绿麦隆的回收率在99.6%~100.2%之间,变异系数在0.43%~0.62%之间。
译  名:
Study on Determining the Suspending Rate of 40% Acetochlor+Atrazine+Chlorotoluron SE
作  者:
ZHAI Ru-huan, MU Wei﹡, MA Chao, LIU Feng (College of Plant Protection, Shandong Agricultural University, Shandong Tai'an 271018, China)
关键词:
acetochlor; atrazine; chlorotoluron; suspending rate; determine
摘  要:
In order to determine exactly the suspending rate of 40% acetochlor+atrazine+chlorotoluron SE, we compared the extraction with the way of evaporation to dryness. Different herbicide formulations had different extracting rate and the quartet extracting rate of acetochlor ranged from 64.7% to 83.9%, atrazine from 84.6% to 93.8%, so the extraction is not proper. Taking the water bath which temperature was (80±1)℃ and evaporating the samples to the remain content of water from 40% to 60%, the recovery of atrazine , acetochlor and chlorotoluron ranged from 99.6% to 100.2%, and the CVs ranged from 0.64% to 0.68%.

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