摘要
研究了柠檬酸钠-硝酸钾-三乙醇胺体系应用于锡精矿中氟量的测定方法,讨论了该体系测定时pH范围、TISAB用量、锡量、铝量及其他共存元素的影响。该方法测定的标准偏差小于0.02%,回收率为98%～101%。
the fluorin in the stannum concentrates was determined by the ion-selective electrde method in the system of sodium cirate, potassium nitrate and tri-alcoholic amine. The effects of pH, TISAB addition amount, stannum, aluminum and other co-exist elements were discussed. The results show that standard deviation is less than 0.02% and recovery ratio is in the range of98%~101%.
出处
《土壤与环境》
CSCD
2002年第4期379-382,共4页
Soil and Environmental Sciences
基金
广东省科学基金重点项目(010873)
关键词
锡精矿
氟
测定
离子选择电极法
stannum concentrates
fluorin
ion-selective electrode
