What type of Iron is being measured when the sample is not digested?

Document ID

Document ID TE325

Published Date

Published Date 27/05/2017
Question
What type of Iron is being measured when the sample is not digested?
Summary
Iron measurement without performing a digestion
Answer
Without a digestion, the iron testing methods will measure total soluble iron plus some insoluble iron that dissolves under the reaction conditions of the test. The conditions of the test include an acidic environment and the addition of a reducing chemistry.