铬黑T双波长分光光度法测定水中的镁

摘要

研究了以铬黑T为显色剂，双波长分光光度法测定水中的镁含量的方法，检验了方法的精密度及准确度，结果均符合要求。%Dual-wave length spectrophotometry of the color reaction of magnesium(Ⅱ)in water with EBT was reported.The method is good in accuracy and reliability.-