A modified Sherwood Scientific Model 420 dual channel flame photometer has been installed at the potash mine of Kali + Salz, Germany monitoring the performance of a sodium chloride leaching process
The Model 420 directly measures samples of 10g/l containing up to 10% NaCl, dissolved in drinking water.
For correction it measures the Na-content of the water itself.
The instrument runs continuously with only occasional cleaning and maintenance.
The benefit that it does not need to use de-ionised water as a blank and a dissolving agent alone saves hundreds of Euros per year.
In the future the Model 420 is intended to replace an Eppendorf instrument measuring directly concentrations of up to 20g/l KCl and 1g/l NaCl in drinking water without a dilution step.
Blanking, calibration and sample streams will be automatically introduced into the instrument and results are will be triggered remotely.
