In what way does Iron(III) act as an interference in the colorimetric TOC methods?

Document ID

Document ID TE5938

Version

Version 1.0

Status

Status Published

Published Date

Published Date 13/03/2017
Question
In what way does Iron(III) act as an interference in the colorimetric TOC methods?
Summary
Interference explanation.
Answer
The persulfate will react with Iron making which prevents it from reacting with the Carbon causing a negative interference.