Why do the liquid SPADNS reagent and the AccuVac® SPADNS reagent have a different decimal place resolution when using colorimeters (DR900 and Pocket Colorimeter II)?

Document ID

Document ID TE354

Published Date

Published Date 27/05/2017
Question
Why do the liquid SPADNS reagent and the AccuVac® SPADNS reagent have a different decimal place resolution when using colorimeters (DR900 and Pocket Colorimeter II)?
Summary
Liquid vs. AccuVac® SPADNS reagent
Answer
When the calibration curves for the liquid and AccuVac® SPADNS reagents were initially created, the liquid SPADNS reagent had a better sensitivity than the AccuVac® ampules.