Zinc and cobalt content in zinc cobalt alloy plating bath are determined by the combined method of titration with EDTA and spectrophotometry.
采用EDTA滴定和分光光度相结合的方法测定碱性锌钴合金镀液中的锌、钴含量。
Spectrophotometry was used to determine the content of EDTA in additives for Zn plating, and the test result with this method is similar to that with complex titration.
采用分光光度法测量镀锌添加剂中edta的含量，并与配位滴定法测得的同种样品中EDTA的含量接近。
Testing the content of sulphate with EDTA titration method can directly influence its precision because whether the capacity of barium mixed liquid of magnesium is added suitably.
用EDTA滴定法检测硫酸盐，钡镁混合液的加入量是否适当，直接影响到检测的精确度。
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