Determination of Nickel concentration in Pd-Ni plating bath

Nickel analysis makes it possible to quantify the concentration of Ni in Pd-Ni electroplating baths, within which this metal serves as the primary brightener. If the amount of Ni in the electroplating bath is lower than expected, the electroplating process may be suboptimal, leading to problems with aesthetic defects (e.g., glazing) in finished products. For this reason, monitoring the concentration of Ni in Pd-Ni baths is critical to ensure the good performance of electroplating processes.

Method

Test type: End Point.

Testing time: 6 minutes.

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 1/14
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 2/14
Collect 50 µL of R1a with a pipette.
Passo 3
Step 3/14
Add 50 µL of R1a to the cuvette containing reagent R1 without touching the tip in the liquid. In case of contamination, replace the tip.
Passo 4
Step 4/14
Gently shake the cuvette 2-3 times.
Passo 5
Step 5/14
Place the cuvette in one of the incubation cells and start the timer by pressing the timer icon.
Passo 6
Step 6/14
Gently shake the cuvette 2-3 times.
Passo 7
Step 7/14
Select the cuvette to be read from the display. Place the cuvette in the cell marked with the blue light and press READ.
Passo 8
Step 8/14
Collect 10 µL of sample with a pipette. Use a new tip for each test to prevent contamination from previous samples.
Passo 9
Step 9/14
Carefully clean the outside of the pipette tip with blotting paper, avoiding contact between the extremity of the tip and the paper.
Passo 10
Step 10/14
Place the sample in the cuvette. Keeping the tip immersed in reagent, press and release the piston of the pipette several times.
Passo 11
Step 11/14
Gently shake the cuvette 2-3 times.
Passo 12
Step 12/14
Place the cuvette in one of the incubation cells and start the timer by pressing the timer icon.
Passo 13
Step 13/14
Gently shake the cuvette 2-3 times.
Passo 14
Step 14/14
Place the cuvette in the cell marked with the blue light and press READ to perform the photometric reading.
7%

Sample treatment

The sample can be used as is.

Principle of the test

Nickel content is determined by its reaction with a chromogen that develops a coloration, the optical intensity of which is proportional to the Ni concentration in the sample analyzed.

Calibration curve

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

Nickel Analysis in Pd-Ni Baths: Calibration Curve of the CDR GalvanLab® instrument with the reference method.

Reagent test Kits

Code *400030: 100 test
Code *400035: 10 test
The reagents have a shelf-life of 12 months

Measuring range

AnalysesMeasuring rangeResolutionRepeatability
Nickel PdNi bath [0.1-7] g/L0.1 - 7 g/L0.010 g/L0.07 g/L

The chemical analysis instruments 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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