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Analytical Method: Manganese (total) in effluents

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. 109535  MColorpHastTM Universal Indicator strips pH 0 - 14
Cat.No. 116754  Water for analysis
 
Sample preparation:
In a glass beaker mix 25 ml of sample solution with 5 ml hydrochloric acid 37 % and evaporate almost to dryness on the heating plate. Dissolve the residue in water for analysis and transfer to a 25-ml volumetric flask.
Whilst there is still room in the flask, check the pH with Universal Indicator strips. The ideal range is pH 3 - 10; if necessary adjust the pH with sodium hydroxide solution 1 mol/l. Immediately after, fill up the solution 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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