Analytical Method: Manganese (total) in mineral water

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 or

Cat.No. 173632  Spectroquant® Colorimeter Move 100

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. 100816  Spectroquant® Manganese Cell Test
Cat.No. 114770  Spectroquant® Manganese Test
Cat.No. 101846  Spectroquant® Manganese Test
Cat.No. 100317  Hydrochloric acid 37 % for analysis
Cat.No. 109137  Sodium hydroxide solution 1 mol/l
Cat.No. 109531  MColorpHastTM pH-indicator strips pH 0 - 6
Cat.No. 116754  Water for analysis
 
Sample preparation:

In a glass beaker place 25 ml of sample liquid with 5 ml hydrochloric acid 37 % and evaporate almost to dryness. Dissolve the residue in water for analysis and adjust the pH using sodium hydroxide 1 mol/l to pH 4. Test the pH with pH-indicator strips. Transfer the solution to a 25-ml volumetric flask, fill up to the mark with water for analysis and mix well.
 
Analysis:
Determine with the above mentioned test kits.
 
Calculation:
Manganese (total) content in mg/l Mn = analysis value in mg/l Mn

Materials

     
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