Analytical Method: Nitrate in building materials

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. 114542  Spectroquant® Nitrate Cell Test
Cat.No. 114563  Spectroquant® Nitrate Cell Test*
Cat.No. 114764  Spectroquant® Nitrate Cell Test*
Cat.No. 114773  Spectroquant® Nitrate Test
Cat.No. 109713  Spectroquant® Nitrate Test*
Cat.No. 116754  Water for analysis
   
*not compatible with Move 100
    
Sample preparation - hot water extraction:
Prepare a fine powder of the sample and dry at 105 °C. Mix 5 g with 100 ml water for analysis and boil for
30 minutes on a hot plate. Allow to cool, transfer the suspension to a 200-ml volumetric flask and make up to the mark with water for analysis. Mix well, filter through a paper filter and then use as sample for the determination of water-soluble nitrate.
 
Analysis:
Determine with the above mentioned test kits.
 
Calculation:
Nitrate content in % = analysis value in mg/l NO3 x 0.004

Materials

     
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