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用固体酸(氨基磺酸)代替二甲酚橙褪色光度法中的硫酸,实现全固体混合试剂,快速测试水中的铬(Ⅵ)。混合试剂在避光条件下至少可保存1年。
The solid acid (sulfamic acid) is used to replace the sulfuric acid in the xylenol orange fading spectrophotometry to realize an all-solid mixed reagent to rapidly test chromium (Ⅵ) in water. Mixing reagents can be stored for at least 1 year in dark conditions.