Determination of Cyanide concentration in process water

The determination of total cyanides in electroplating process water is essential for monitoring plant efficiency and ensuring environmental safety. It is a key parameter for assessing the need for abatement treatments prior to discharge, in line with current regulations.

Method

Test type: End Point.

Testing time: 8 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 1/15
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 2/15
Collect 50 µL of R2 with the pipette.
Passo 3
Step 3/15
Carefully clean the outside of the pipette tip with blotting paper, avoiding contact between the extremity of the tip and the paper.
Passo 4
Step 4/15
Place the R2 reagent in the cuvette. Keeping the tip immersed in reagent, press and release the piston of the pipette several times.
Passo 5
Step 5/15
Gently shake the cuvette 2-3 times.
Passo 6
Step 6/15
Place the cuvette in one of the incubation cells and start the timer by pressing the timer icon.
Passo 7
Step 7/15
Gently shake the cuvette 2-3 times.
Passo 8
Step 8/15
Select the cuvette to be read from the display. Place the cuvette in the cell marked with the blue light and press READ.
Passo 9
Step 9/15
Collect 10 µL of sample with a pipette. Use a new tip for each test to prevent contamination from previous samples.
Passo 10
Step 10/15
Carefully clean the outside of the pipette tip with blotting paper, avoiding contact between the extremity of the tip and the paper.
Passo 11
Step 11/15
Place the sample in the cuvette. Keeping the tip immersed in reagent, press and release the piston of the pipette several times.
Passo 12
Step 12/15
Gently shake the cuvette 2-3 times.
Passo 13
Step 13/15
Place the cuvette in one of the incubation cells and start the timer by pressing the timer icon.
Passo 14
Step 14/15
Gently shake the cuvette 2-3 times.
Passo 15
Step 15/15
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

The content of cyanides is determined, after dilution, by reaction with a chromogen. The test has a total duration of 10 minutes at the end of which the signal related to the colored complex formed is detected.

Calibration curve

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

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

Reagent test Kits

Code *400060: 100 test
Code *400065: 10 test
The reagents have a shelf-life of 12 months

Measuring range

AnalysesMeasuring rangeResolutionRepeatability
Cyanides [0.05-5] g/L0.05 - 5 g/L0.001 g/L0.043 g/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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