土壤中久效磷残留量的薄层层析—紫外分光光度测定法  

Determination of Monocrotophos Residual Quantity by TLC―UV Spectrophotometry

作　　者：庞永倩 

机构地区：[1]辽宁石化职业技术学院,辽宁锦州121001

出　　处：《河北化工》2011年第5期40-41,43,共3页Hebei Chemical Industry

摘　　要：建立了土壤久效磷的薄层层析―紫外分光光度测定法。以甲醇提取目标组分,以硅胶GF254为固定相。环己烷:丙酮:氯仿(1l:11:5)为展开剂,对土壤样品进行分离,用紫外分光光度法进行定量,波长为214 nm。结果表明,本法简捷、准确度高、精密度好,平均RSD为1.09%,平均回收率为99.22%。A method of TLC—UV spectrophotometry was set up for determining soil monocrotophos.Target components were extracted by methanol.The separation of soil sample was accomplished on GF254 plate by using the mobile phase of eyelohexane：acetone：chloroform（11：11：5）.The contents of the soil were determined by UV spectrophotometry when the detection wavelength was 214 nm.The result showed that the method was simple and direct,its precision was high,the average RSD was 1.09% and the recovery was 92.22%.

关 键 词：久效磷 残留量 薄层层析―紫外光度法 

分 类 号：O652[理学—分析化学] O657.3[理学—化学]