饮用矿泉水中微量钡的测定方法  

Determination of Trace Ba in Mineral Water for Drinking

作　　者：杨定清[1] 付绍清[1] 张义蓉[1] 罗晓梅[1] 

机构地区：[1]四川农业科学院分析测试中心

出　　处：《四川环境》1999年第2期32-34,共3页Sichuan Environment

摘　　要：采用硫酸钡比浊法测定饮用矿泉水中微量的钡。结果如下：１＋１０硫酸用量以５ｍＬ为最佳；标准曲线相关系数达极显著水准；回收率９５—１０７％；变异系数６４８％；The turbidimetry of BaSO4 was used to determine the trace Ba in the mineral water for drinking, the results showed that: The best amount of 1+10 H2SO4 was 5mL; The correlation coefficient of standard curve could get the best significant; The recovery was 95-107%; The CV% was 648%; The best time for turbidity was within 30min after stopping stirring

关 键 词：矿泉水 钡 测定法 饮用 微量元素 

分 类 号：TS275.1[轻工技术与工程—农产品加工及贮藏工程]