Determination of Magnesium concentration in process water

Magnesium analysis allows the quantification of Mg concentration in the wash waters of galvanic processes. Monitoring the amount of magnesium in water is important to ensure the high quality standards of the electroplating industry required by the market.

Method

Test type: End Point.

Testing time: immediate reading.

Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR GalvanLab® and 3 tests for CDR GalvanLab® Junior.

Passo 1
Step 1/8
Place the test tubes containing reagent R1 in one of the incubation cells and let them warm for at least 5 minutes.
Passo 2
Step 2/8
Gently shake the cuvette 2-3 times.
Passo 3
Step 3/8
Select the cuvette to be read from the display. Place the cuvette in the cell marked with the blue light and press READ.
Passo 4
Step 4/8
Collect 20 µL of sample with a pipette. Use a new tip for each test to prevent contamination from previous samples.
Passo 5
Step 5/8
Carefully clean the outside of the pipette tip with blotting paper, avoiding contact between the extremity of the tip and the paper.
Passo 6
Step 6/8
Place the sample in the cuvette. Keeping the tip immersed in reagent, press and release the piston of the pipette several times.
Passo 7
Step 7/8
Gently shake the cuvette 2-3 times.
Passo 8
Step 8/8
Place the cuvette in the cell marked with the blue light and press READ to perform the photometric reading.
13%

Sample treatment

The sample can be used as is.

Principle of the test

Mg2+ ions react with the chromogen in the reagent and generate colored complexes whose measured absorbance is proportional to the concentration of the analyte in the sample.

Calibration curve

Calibration curve was obtained by correlating the CDR method with the reference method.

Magnesium Analysis in Process Water: Calibration Curve of the CDR GalvanLab® instrument with the reference method.

Reagent test Kits

Code *400090: 100 test
Code *400095: 10 test
The reagents have a shelf-life of 12 months

Measuring range

AnalysesMeasuring rangeResolutionRepeatability
Magnesium [2-50] mg/L2 - 50 mg/L0.100 mg/L0.9 mg/L

The chemical analysis instrument for electroplating baths

CDR GalvanLab®

  • Complete analysis panel, supplied already configured
  • Up to 16 determinations simultaneously
  • Possibility of carrying out analyses of the same sample
  • Integrated printer
  • Full connections (LAN - USB - Bluetooth barcode/QR code reader)

CDR GalvanLab® Jr

  • Partial analysis panel, customisable configuration
  • Up to 3 determinations simultaneously
  • Wireless connection to external printer
  • USB connections
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