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Ion Chromatography

VA / Polarography / CVS

844 UV/VIS Compact IC- First «All In One» compact UV/VIS IC system worldwide

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. (see also: Conductivity or UV/VIS?). 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.

Get more information

Conductivity or UV/VIS detection?
Application Note N-50: Determination of chromate (chromium VI) in a leather extract after inline dialysis and post column reaction ...
Metrohm IC brochure
Metrosep Columns for Ion Chromatography
Applications for Ion Chromatography
See also: MPak eluents and PRIMUS

Technical information

Compact high-performance ion chromatography system using UV/VIS detection

Multi-wavelength detector

3 wavelengths
1 reference wavelength
1 quotient channel
Measuring range 190...900 nm
Combined deuterium/halogen lamp system
Scan mode for the rapid determination of absorption maxima
Separate analog output for each wavelength
Zero function
Variable bunching factors for each wavelength

Chromatography system

Metal-free low-pulsation serial dual-piston pump, flow range 0.2 to 2.5 mL/min, typical flow range 0.4 to 1.5 mL/min
Maximum pressure 35 MPa (350 bar, 5000 psi)
Flow correction
Pulsation damper
Integrated six-way injection valve
Insulated column compartment
Column heating for two separation columns – temperature range from ambient +5 °C to 75 °C
Integrated 22-bit A/D converter
Eight Remote I/O lines for controlling external instruments
Leak detector
Control and evaluation software

Dimensions in mm (W/H/D) 255/385/515

Ordering information

Order number	Description
2.844.0010	Compact ion chromatograph for the photometric determination of anions and cations in the UV/VIS range. Very compact construction. System with integrated dual-piston high-pressure pump, electrically operated injection valve and highly sensitive three-wavelength diode-array detector.
2.844.0020	Compact ion chromatograph for the photometric determination of anions and cations in the UV/VIS range. Very compact construction. System with integrated dual-piston high-pressure pump, electrically operated injection valve and highly sensitive three-wavelength diode-array detector. With additional PCR (Post-Column Reactor) and two-channel peristaltic pump.
2.844.0110	Compact ion chromatograph for the photometric determination of anions and cations in the UV/VIS range. Very compact construction. System with integrated dual-piston high-pressure pump, electrically operated injection valve and highly sensitive three-wavelength diode-array detector. With additional column heating for two separation columns.
2.844.0120	Compact ion chromatograph for the photometric determination of anions and cations in the UV/VIS range. Very compact construction. System with integrated dual-piston high-pressure pump, electrically operated injection valve and highly sensitive three-wavelength diode-array detector. With additional column heating for two separation columns, PCR (Post-Column Reactor) and two-channel peristaltic pump.
The IC Net and IC Cap software are included in the scope of delivery.
2.861.0500	Column heating (stand alone)
2.833.0010	833 IC Liquid Handling Pump Unit
6.2836.000	IC Post Column Reactor
2.837.0010	837 IC Eluent Degasser for 2 eluents
2.837.0030	837 IC Combi Degasser for 2 eluents and sample
6.5904.050	Internal Loop 0.25 µL (rotor) with four-way stator
2.813.0010	813 Compact IC Autosampler
2.838.0010	838 Advanced IC Sample Processor
2.838.0110	838 Advanced IC Dialysis Sample Processor
2.838.0210	838 Advanced IC Filtration Sample Processor
2.838.0120	838 Advanced IC Dilution Sample Processor
6.2804.050	Halogen lamp for 844 (VIS)
6.2804.060	Deuterium lamp for 844 (UV)
6.2839.000	Flow-through cell for 844, 10 mm, stainless steel