What wavelengths are used to run nitrogen-ammonia tests?

Document ID

Document ID TE130

Published Date

Published Date 27/05/2017
Question
What wavelengths are used to run nitrogen-ammonia tests?
Summary
Wavelengths used to measure nitrogen-ammonia
Answer
Each nitrogen-ammonia method has a "summary of method" section that details the wavelength used to create the test results.

The list below provides the nitrogen-ammonia methods and the wavelengths used:
Nitrogen-Ammonia Nessler Method 8038 = 425 nm.
Nitrogen-Ammonia Salicylate Methods 10023 and 10031 = 655 nm.
Nitrogen-Ammonia TNTplus Method 10205 = 690 nm.