The complete chromatography system in a minimal space – the ion chromatograph 844 UV/VIS Compact IC separates and determines substances that absorb in the ultraviolet or visible range of the spectrum. This opens up a large number of applications that are not directly amenable to ion chromatography with conductivity detection. Some important application areas Detection of heavy metals Chromium-containing effluents from tanneries Corrosion monitoring in power plants Determination of bromate in drinking water Determination of sulfur compounds in wastewater Determination of nitrite and nitrate in seawater Top technology The 844 UV/VIS Compact IC combines all system components in one compact protective housing: injector, high-pressure pump, column heating, post-column reactor, reagent pump and the newly developed array UV/VIS detector. Diode array detector Three wavelengths plus parallel reference channel Scan mode for easy system optimization Combined UV and VIS lamp system No lamp change required during operation Integrated post-column reactor Column heating An ordinary PC suffices to control the complete system. The Metrodata IC Net software warrants easy and intuitive system operation. Optimized data acquisition allows data processing while the chromatogram is still running. The large range of Metrosep separation columns assures analytical success.