摘要
讨论四苯硼酸钠重量法测定氯化钾中钾含量测量不确定度的影响因素,对测试过程中的测量不确定度分量进行了分析和计算,求出氯化钾中钾含量测量结果的标准不确定度为1.7×10^(-3),扩展不确定度为3.4×10^(-3)。
The influencing factors of the uncertainty of measurement in the determination of potassium content in potassium chloride using sodium tetraphenylborate gravimetric method are discussed and the components of the uncertainty of measurement in the testing are analyzed and calculated. The standard uncertainty and the expanded uncertainty of potassium reported are 1. 7×10 and -3. 4×10-3 respectively, and the measurement results were expressed.
出处
《化学分析计量》
CAS
2003年第2期10-12,共3页
Chemical Analysis And Meterage
关键词
测定
钾含量
评定
氯化钾
四苯硼酸钠重量法
测量不确定度
化肥
分析
potassium chloride, sodium tetraphenylborate gravimetric method, potassium, uncertainty of measurement, evaluation
