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MÜTEK PCD-04 PARTICLE CHARGE DETECTOR

... KNOWS WHAT'S IN SOLUTION



The Mütek PCD-04 Particle Charge Detector measures colloidally dissolved substances in a process sample. It is a standard tool for detecting anionic trash levels as well as for characterizing chemical additives. Equipped with an optional pH probe, the pH value of samples can be monitored and the isoelectric point be determined.

To measure charge the sample material has to be titrated in the PCD measuring cell. Highest accuracy and reproducibility is achieved by combining the Mütek PCD-04 with the automatic titrator Mütek PCD-T3. This set-up is widely used around the world in:

  • R&D labs of chemical suppliers and paper mills
  • Universities, institutes, schools
  • Applications outside the paper industry

making the Mütek PCD the standard for charge measurements.

The Mütek PCD-04 is also available with an integrated titration module – the so called Mütek PCD-04 Travel - for easy travelling and charge measurements onsite.

Measuring Principle

The aqueous sample is placed in the measuring cell and the pH probe is inserted. Once the PCD is turned on, the piston of the cell oscillates and causes a high flow rate. Any charged material adsorbed to the cell wall will be separated from its counter-ions by the flow to create a streaming current. Two electrodes in the cell pick up this current and display it on the unit next to the measured pH value. A poly-electrolyte of opposite charge is added until reaching the charge zero point. For isoelectric point detections, an acid or base is used to neutralize the charge.

The Mütek PCD-04 should always be combined with the automatic titrator Mütek PCD-T3.

Benefits

  • Detect anionic trash sources
  • Characterize charge properties of additives
  • Determine isoelectric points
  • Understand charge reactions in the process
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