I have noticed that the Amino Acid F powder reagent can vary in color from lot to lot. Is this normal?

Document ID

Document ID TE790

Published Date

Published Date 27/05/2017
Question
I have noticed that the Amino Acid F powder reagent can vary in color from lot to lot. Is this normal?
Summary
Reagent color variability
Answer
No, this is not a problem. The powder is usually tan, but sometimes varies between green, brown or pink in color. This occurs due to raw material variation during manufacture and does not cause measurement differences.