Will DPD chlorine tests detect iodine?

Document ID

Document ID TE1037

Published Date

Published Date 08/16/2018
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Question
Will DPD chlorine tests detect iodine?
Summary
DPD chlorine tests and iodine
Answer
Iodine is an interference in the DPD test for chlorine. When analyzing total chlorine, iodine will be detected as 1 mg Cl/L for every 3.58 mg I/L actually present.

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