The model RA-4500 is the latest development in fully automated mercury analysers that can carry out all the processes from pretreatment to measurement. After the sample has been loaded, the RA-4500 performs all the processes including reagent dispensing, color judgment, thermal decomposition, cooling, and reduction of the excess Potassium Permanganate with Hydroxylammonium Chloride. The measurement of mercury is performed by utilizing the reducing vaporization method after an addition of stannous chloride. The RA-4500 is capable of handling 80 samples at a time, and by performing a discrete type analysis, the RA-4500 provides savings on labor and operating costs.
Measuring method: Reducing vaporization method
Detection method: Cold-vapor atomic absorption spectrometry
Measuring range: 5.0ppt to 100ppb
Dispensed reagent: 6 types
Number of samples: 80