摘要
本论文利用低压离子色谱法测定常见的八种牙膏产品的含氟量及其他阴离子含量，并测定了该法的精密度、线性范围及回收率。实验证明用低压离子色谱法测定，精密度高、变异系数＜５％，峰高与浓度呈良好的线性关系，相关系数在０．９９６～０．９９８之间。
This paper reports the eight kinds of toothpaste products are analyzied by low-pressur ion chromatography. The contents of F -,Cl -,PO 3- 4,NO - 3,SO 2- 4 are determinated by this method. It also shows that the low-pressur ion chromatography is feasible and accurate with precise, l*mnear vange and good rate of recovery.
关键词
低压离子色谱
牙膏
阴离子
氟离子
low-pressur ion chzomatography, toothpaste analysis, anions
