Determination of mercury in solutions needs several steps:
 oxidation to Hg(II)  reduction to Hg(0)
evaporation detection |
continuous
mixing of a sample with an oxidizing reagent (e.g. KMnO4, K2Cr2O7)the
mixture is heated to ca. 98 oC in a reaction coiladdition
of hydroxylamine and SnCl2 to reduce Hg to an elementar stateevaporation
in cross-flow reactor, dehumidification Hg vapoursdetermination
in the atomic absorption spectrometer| REACTIONS | PERISTALTIC PUMP | REACTION COIL | DEHUMIDIFIER
| PHOTOMETER |
