期刊论文

中文

环境监测管理与技术

1006-2009

2014

1

32-34

10.3969/j.issn.1006-2009.2014.01.011

农业部农药残留研究基金资助项目（2010H218） 广西省南宁市专利新产品产业化重大科技专项基金资助项目（201106055D）

本校为第一机构

用二氯甲烷提取稻田水和水稻植株样品中的丙草胺，稻田土壤样品用二氯甲烷-甲醇混合溶剂（体积比为9∶1）提取，再用高效液相色谱仪测定。方法在0．02 mg/L～2．00 mg/L的范围内线性良好，相关系数为0．9998；稻田水、土壤，水稻植株中丙草胺的检出限分别为0．001 mg/L、0．005 mg/kg、0．01 mg/kg；对稻田水、土壤和水稻植株分别做3个浓度水平的加标回收试验，重复5次，平均回收率在75．5％～84．7％之间，测定结果的相对标准偏差为2．0％～10．5％。

Pretilachlor in paddy-field water and paddy rice samples were extracted with dichloromethane, while paddy-field soil samples were extracted with dichloromethane-methanol mixture(volume ratio is 9∶1 ).The extracts were subsequently determined by high performance liquid chromatography.The results showed that the linearity of pretilachlor was favorable in a range between 0.02 mg/L and 2.00 mg/L,the correlation coefficient was 0.999 8.The detection limits of pretilachlor in paddy-field water,paddy-field soil and paddy rice were 0.001 mg/L,0.005 mg...