摘要
验证了离子选择电极法测定氟化物的特征指标，结果表明：测定下限为0．04mg／L，标本标准偏差为0．0026，相对标准偏差〈2．7％，回收率在97—103％．说明该方法的精密度好，准确度高，符合质量控制要求。
The characteristic factors of fluorine ion-selective electrode analysis to determine the fluoride are verified.It shows that the RQL is 0.04 mg/L,the standard deviation is 0.0026, the RSD is 〈2.7 %,and the rate of recovery is between 97-103%. The precision and accuracy of this method is fine and meets the requirement of quality control.
出处
《福建分析测试》
CAS
2012年第6期52-54,共3页
Fujian Analysis & Testing
关键词
氟离子选择电极
牙膏
氟
fluorine ion-selective electrode
toothpaste
fluoride
