在标准分析方法中，采用原子荧光分光光度法测定水中砷、硒、汞所用的标准溶液系列必须每次配制，给工作带来很大的不方便。

For the standard analytical method, the series of standard solution for the determination of As, se and Hg in water by atomic fluorescence spectrophotometry must be prepared for every test.

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本标准溶液以二氧化硒在超净实验室中准确配制并分装于20毫升安瓿中。

This standard solution was accurately prepared in super-clean laboratory with SeO2 and sub-packed in 20 ml ampoules.

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本标准溶液以二氧化硒在超净实验室中准确配制并分装于20毫升安瓿中。

This standard solution was accurately prepared in super-clean laboratory with SeO2 and sub-packed in 20 ml ampoules.

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