Study on the Determination of Prometryne Residues in Environment
Study on the Determination of Prometryne Residues in Environment
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发表时间：
2007
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通讯作者：
Yang Hong
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作者：
Yang Hong
采用高效液相色谱法测定土壤、水和小麦中扑草净的残留量，土壤中残留物用丙酮超声提取，硅胶柱净化，水中残留物用LC-18固相萃取柱净化;风团中的残留物用V（甲醇）∶V（水）=1∶1，然后用蒸馏水调节至一定体积，通过LC-18 SPE柱，对三个样品的提取物进行HPLC-UVD分析，相关系数（R2）方法的线性范围为0.5~16 mg·L-1，检出限为0.0125 mg·L-1。土壤、水和小麦的加标回收率分别为88.2%~ 102.4%、81.7%~ 102.5%和88.4%~ 101.7%。RSD分别为6.3%~ 6.4%，4.5%~4.6%，3.6%~ 5.5%。
A method for the determination of prometryne in soil,water and wheat of environment was developed by HPLC.Residue in soil was ultrasoniclly extracted with acetone,followed by cleanup with a silica gel column;residue in water was purified by LC-18 SPE column;and residue in wheal was ultrasoniclly extracted with a mixture of V(methanol)∶V(water)=1∶1 which was then adjusted to a volume with distilled water and passed through a LC-18 SPE column.The extracts of three samples were analysed by HPLC-UVD.The correlation coefficients(R2) of this method was 0.9999,and their calibration curves were linear in the range of 0.5~16 mg·L-1 with the detection limit of 0.0125 mg·L-1.The recoveries ranged from 88.2% to 102.4% for soil,81.7% to 102.5% for water and 88.4% to 101.7% for wheat,with the RSD of 6.3%~6.4%,4.5%~4.6% and 3.6%~5.5%,respectively.