Chromium Measurement (Cr)

Heinrich Proch Chromium Analyser

The online analyser “Heinrich Proch” from Seibold’s Composer analyser family continuously determines the chromium concentration. It is suitable for monitoring of toxic, carcinogenic chromium(VI) as well as for total chromium. Robust, proven and tested measurement technology affords high precision and sensitivity while keeping instrument complexity low. The result is a cost-efficient measurement. Easy and safe handling thanks to non-toxic reagents.


  • High accuracy
  • Easy handling
  • Minimal maintenance
  • Low cost per measurement
  • Robust design

The analyser adds a reagent specific for chromium to the sample. If chromium ions are present, a stable chelate complex forms between metal and reagent. This complex with its characteristic colour is detected precisely in the spectrophotometer. The intensity is directly proportional to the concentration of chromium. The analyser takes care of regular automatic cleaning and calibration.

  • Drinking water
  • River water
  • Process water (tanning)