Is it possible to preserve a sample for ferrous iron analysis?

Document ID

Document ID TE326

Published Date

Published Date 27/05/2017
Question
Is it possible to preserve a sample for ferrous iron analysis?
Summary
Preserving a sample for ferrous iron analysis
Answer
Ferrous iron is not stable when exposed to the atmosphere and needs to be measured as soon as possible after sampling. If immediate testing is not possible then sulfuric acid can be used under limited conditions.