Why is stirring the sample after adding acid required for TOC methods?

Document ID

Document ID TE1864

Version

Version 3.0

Status

Status Published

Published Date

Published Date 10/02/2018
Question
Why is stirring the sample after adding acid required for TOC methods?
Summary
Need for strirring during TOC tests
Answer
The stirring is to remove total inorganic carbon (TIC). The test measures the carbon dioxide generated during digestion the carbonates and bicarbonates in the sample must be removed, as these are not organic forms of carbon.

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