By replacing sulphoacid and silver sulfate solution by combining acid of sulphoacid and phosphoric acid in the back-flow process,the time is shortened and analysis is quicker.
改用硫磷混合代替硫—硫液进行回流操作可极大地缩短回流时间,提高分析速,得到满意结果。
By replacing sulphoacid and silver sulfate solution by combining acid of sulphoacid and phosphoric acid in the back-flow process,the time is shortened and analysis is quicker.
改用硫磷混合代替硫—硫液进行回流操作可极大地缩短回流时间,提高分析速,得到满意结果。
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