Are there directions for preparing the Lachat Sulfanilamide reagent from the Nitrate reagent set?

Document ID

Document ID TE9040

Version

Version 2.0

Status

Status Published

Published Date

Published Date 06/19/2018
Question
Are there directions for preparing the Lachat Sulfanilamide reagent from the Nitrate reagent set?
Summary
Directions for preparing the Lachat Sulfanilamide reagent
Answer
The following directions are for preparing the Sulfanilamide reagent from the Nitrate Reagent Set (Product # 52903).

Directions for using Sulfanilamide Reagent 1, 400mL and Sulfanilamide Reagent 2 (Product # 52022 and 52023)

Mixing Reagents:
Add contents of Sulfanilamide Reagent 2 (Product # 52023) into Sulfanilamide Reagent 1, 400 mL (Product # 52022). Recap bottle and shake vigorously for 20 seconds. Add stir bar to bottle and stir for 15-30 minutes.

Use: This solution is to be used as the Sulfanilamide Color Reagent for all Lachat Nitrate/Nitrite Flow Injection Methods.

Stability: Reagents will have a shelf life of 6 months prior to mixing if stored in a dark location. Once reagents are mixed together solution will remain good for up to 2 months. Protecting solutions from light and keeping refrigerated may extend stability. Due to short shelf life it is not recommended to mix reagents until needed. At any point, if the color of the mixed reagents changes to dark pink or brown then discard the solution.
 
 
 

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