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Analytical Method: Nickel (total) in steels (Others)

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. 114554  Spectroquant® Nickel Cell Test
Cat.No. 114785  Spectroquant® Nickel Test
Cat.No. 100317  Hydrochloric acid 37 % for analysis
Cat.No. 100456  Nitric acid 65 % for analysis
Cat.No. 101948  Bromine for analysis
Cat.No. 116754  Water for analysis
 
Sample preparation:
In a covered glass beaker dissolve about 100 mg (exactly weighed) of sample with 7 ml hydrochloric acid
37 %, 3 ml nitric acid 65 % and 3 ml of bromine, on the steambath. When completely dissolved, evaporate the acids. This procedure must yield a fully dry, acid-free, crystalline residue of yellowish or greenish color (not dark brown or black).
After dissolution in a few ml of water for analysis, transfer the solution to a 1000-ml standard volumetric flask, fill up to the mark with water for analysis and mix well.
 
Analysis:
Determine with the above mentioned test kits
 
Calculation:

Nickel (total) content in %  =   analysis value in mg/l Ni x 100
weight of sample in mg

 

 

 

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