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Analytical Method: Analytical Quality Assurance, Standard for Tin

Reagents:
Cat.No. 170242  Tin standard solution Certipur®
Cat.No. 109057  Hydrochloric acid 1 mol/l Titripur®
Cat.No. 116754  Water for analysis

 

Preparation of a standard solution:
Transfer 30 ml of HCl 1 mol/l to a calibrated or conformity-checked 100-ml volumetric flask, add 10.0 ml (full pipette) of the tin standard solution, and make up to the mark with distilled water.
The standard solution prepared according to this procedure has a concentration of 100 mg/l tin.

 

Further investigational concentrations may be prepared from the standard solution by diluting accordingly with distilled water and HCl 1 mol/l. This is done in the following manner:

 

Transfer 1 ml of HCl 1 mol/l to a calibrated or conformity-checked 100-ml volumetric flask. Withdraw the desired aliquot from the tin standard solution 100 mg/l, add, make up to the mark with distilled water, and mix.

 

Stability:
The tin standard solution 100 mg/l remains stable for 30 minutes. The further diluted standard solutions (investigational concentrations) are not stabile and must be used immediately.

 

For use with test kit: Measuring range in mg/l
114622 Spectroquant® Tin Cell Test

 0.10 – 2.50 Sn


 

 

 

 

 

 

 

Materials

     
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