摘要
以乌伦古湖鱼体(鱼肉,不含鱼内脏)为研究对象,在碱性条件下,用硝酸镁固定样品中氟,高温灰化去除有机物,盐酸浸提,用离子缓冲溶液消除干扰离子,离子选择电极法测定乌伦古湖鱼中的氟。实际样品中加入1.00 mg/kg氟标准品,测定回收率分别为89.5%和88.0%,RSD为3.02%和4.29%。
The method determined fluoride of fresh fish （fish, no fish guts） in Wulungu lake with ion selective electrodes method, the fluoride fixed by magnesium nitrate in alkaline medium and the organic is removed by high temperature dusting. The fluoride is extracted by hydrochloric acid and the interfering ions is eliminated by ion buffer solution. The recovery was 89.5% and 8896 ,RSD was 3.02% and 4.29% ,respectively when adding 1.00 mg/kg fluoride standard to the actual sample.
出处
《干旱环境监测》
2016年第4期181-184,共4页
Arid Environmental Monitoring
关键词
乌伦古湖
鱼
离子选择电极
氟
Wulungu lake
fish
ion selective electrodes
fluoride
