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Copper analysis by EDTA

2010-11-26View Original

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Gentlemen, I am currently trying to analyze copper waste liquid that has been dissolved in nitric acid; it is known that there is a small amount of tin present in this solution. I am using EDTA as the standard solution and PAN as an indicator (with a pH 10 buffer added) to determine the copper content. Those who have experience with this type of analysis or relevant knowledge are invited to share their valuable insights: could the presence of this tin affect the accurate determination of copper content? Thank you
Reply #22010-11-27
It is recommended to use the iodometric method for determination. Interferences from the EDTA method are very severe.

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Translated at 2026-07-24 21:30:46

Original: https://bbs.hcbbs.com/thread-766296-1-1.html

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