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Analytical Method: Analytical Quality Assurance, Standard for Magnesium


Cat.No. 105853  Magnesium nitrate hexahydrate for analysis

Cat.No. 116754  Water for analysis


Preparation of a standard solution:

Dissolve 1.055 g of magnesium nitrate hexahydrate in a calibrated or conformity-checked 100-ml volumetric flask and make up to the mark with distilled water. The stock solution prepared according to this procedure has a concentration of 1000 mg/l magnesium.


Further investigational concentrations may be prepared from this stock solution by diluting accordingly.



The stock solution of 1000 mg/l remains stable for one week. The diluted investigational solutions remain stable for one day.



For use with test kits:

Measuring range
in mg/l Mg


MColortestTM Magnesium Test

100 - 1500


Reflectoquant® Magnesium Test

5 - 100


Spectroquant® Magnesium Test

5.0 - 75.0



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