烟草科技Issue(6)：40-44,5.
高效液相色谱法测定土壤中二氯喹啉酸的不确定度
Uncertainty in Determination of Quinclorac in Soil with HPLC
摘要
Abstract
In order to improve the accuracy of test results,the uncertainty in determination of quinclorac in soil with HPLC was systematically calculated according to JJF 1059-1999 Evaluation and expression of uncertainty in measurement.The results indicated that:1) Preparation of standard working solution,calibration of working curve and constant volume of sample solution were the major factors influencing the uncertainty; 2)The combined uncertainty was 0.00069 mg/kg and the expanded uncertainty was 0.0014 mg/kg (level of confidence of 95％,k=2) at the concentration of quinclorac in soil of 0.0236 mg/kg.The uncertainty in determination of quinclorac in soil with HPLC could be decreased by using high purity standard substance and qualified metering devices,and strictly controlling treatment procedures.关键词
不确定度/高效液相色谱(HPLC)/二氯喹啉酸/土壤Key words
Uncertainty/ HPLC/ Quinclorac/ Soil分类
农业科技引用本文复制引用
黎茶根,唐明,钟秋瓒,何宽信,万树青,申昌优,万应发,张超群,郭伟..高效液相色谱法测定土壤中二氯喹啉酸的不确定度[J].烟草科技,2013,(6):40-44,5.基金项目
江西省烟草专卖局(公司)科技项目"土壤中除草剂残留对烟叶生产的影响与应对措施"(201101003). （公司）
