摘要
研究了硫化钠配制标准溶液不稳定的原因 ,制备出稳定一年的硫化物溶液标准物质。它均匀 ,定值结果准确 ,浓度范围 5 0～ 1 0 0 μg/ ml(S2 - 计 )。
When Na 2S is used in making up the standard solution of sulphide,the solution is non stable The reasons have been studied in this article The stable and well distributed standard solution was produced,which is precise in the results of measuring and stable for 1 year in force Its concentration range from 50～100 μg/ml
出处
《中国环境监测》
CAS
CSCD
北大核心
2000年第2期48-50,共3页
Environmental Monitoring in China
