Analytical Method: Analytical Quality Assurance, Standard for Nitrogen (total)

Reagents:
Cat.No. 104201  Glycine for analysis
Cat.No. 116754  Water for analysis
 
Preparation of a standard solution:
Dissolve 5.36 g of glycine 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 total nitrogen. Further investigational concentrations may be prepared from this stock solution by diluting accordingly.
 
Stability:
When stored in a cool place (refrigerator), the stock solution remains stable for one week. The diluted investigational concentrations must be used immediately.
 

For use with test kits:

 

Measuring range
in mg/l

100613

Spectroquant® Nitrogen (total) Cell Test

0.5 - 15.0 N

114537

Spectroquant® Nitrogen (total) Cell Test

0.5 - 15.0 N

114763

Spectroquant® Nitrogen (total) Cell Test

10 - 150 N

  

 

Materials

     
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