Attention:

Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Analytical Method: Analytical Quality Assurance, Standard for Oxygen scavengers

Reagents:
Cat.No. 818473  N,N-Diethylhydroxylamine for sythesis
Cat.No. 116754  Water for analysis
 
Preparation of a standard solution:
Dissolve 1.00 g of N,N-diethylhydroxylamine with distilled water in a calibrated or conformity-checked 1000-ml volumetric flask and make up to the mark with distilled water.
The stock solution prepared according to this procedure has a concentration of 1000 mg/l DEHA.
Further investigational concentrations may be prepared from this stock solution by diluting accordingly.
 
Stability:
When stored in a cool place (refrigerator), the stock solution and the further diluted investigational solutions remain stable for one day.

 

For use with test kits:

 

Measuring range in µg/l

119251

Spectroquant®Oxygen Scavengers Test

20 - 500 DEHA

 

Materials

     
Related Links