对硫代硫酸钠标准溶液有效期的分析

The analysis of the validity of the Na_2S_2O_3

通过对化验室常用标准液稳定性较差的硫代硫酸钠标准溶液的分析,认为其标准液的有效期在2个月以内才能保证检验正常、检出的数据有效.

This paper demonstrates an analysis of the Na_2S_2O_3,a regular standard solution with weak stability in the lab,and finds that for acquiring the formal and effective data of testing,the validity of the solution is 2 only months.