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Analytical Method: Sulfite, low measuring range

Instruments and Reagents:

Cat.No. 173016  Spectroquant® VIS Spectrophotometer Prove 100 or

Cat.No. 173017  Spectroquant® UV/VIS Spectrophotometer Prove 300 or
Cat.No. 173018  Spectroquant® UV/VIS Spectrophotometer Prove 600 or
Cat.No. 109748  Spectroquant® Photometer NOVA 30 or
Cat.No. 109751  Spectroquant® Photometer NOVA 60 
Cat.No. 114946  Rectangular cells 10 mm and/or
Cat.No. 114947  Rectangular cells 20 mm and/or
Cat.No. 114944  Rectangular cells 50 mm
Cat.No. 114394  Spectroquant® Sulfite Cell Test
Cat.No. 116754  Water for analysis
 
Measuring range:
0.05 - 3.00 mg/l sulfite in a 50-mm cell at 410 or 405 nm.
 
Procedure:
Place 1 microspoonful SO3-1K in a cell, close the cell and shake until the solid is dissolved. Pipette 7 ml sample solution into the cell and mix. After a reaction time of 2 minutes transfer the solution to a 50-mm cell. For the blank reading treat 7 ml of water for analysis in the same way as the sample.
 
Analyse:
Determine by means of photometer; the method is already programmed in the Prove and NOVA instruments.

Materials

     
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