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Analytical Method: Analytical Quality Assurance, Standard for Sulfite

Cat.No. 106657  Sodium sulfite for analysis
Cat.No. 108418  Titriplex® III for analysis
Cat.No. 116754  Water for analysis
Preparation of a standard solution:
Dissolve 1.57 g of sodium sulfite and 0.4 g of Titriplex® III 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 sulfite.
Further investigational concentrations may be prepared from this stock solution by diluting accordingly.
When stored in a cool place (refrigerator), the stock solution remains stable for only one day.

For use with test kits:


Measuring range
in mg/l


MQuantTM Sulfite Test

10 - 400 SO3


MColortestTM Sulfite Test

0.03 - 32.0 SO3


Reflectoquant® Sulfite Test

10 - 200 SO3


Spectroquant® Sulfite Cell Test

1.0 - 20.0 SO3
0.05 - 3.00 SO3


Spectroquant® Sulfite Test

1.0 - 60.0 SO3














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