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Instrument Database:
Knauer GmbH - WellChrom Diode Array Detector K-2800
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| Year of introduction |
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| Status |
available |
| Company |
Knauer GmbH
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| Categories |
Chromatography: LC-Detector: Diode Array
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With a deuterium lamp for highly sensitive measurements between 190 and 740 nm
The new WellChrom Diode Array Detector K-2800 with a UV light source supports a wavelength range of 190 to 740 nm. Aside of having an enlarged linearity range, the K-2800 is distinguished by having an outstanding signal to noise ratio. Work with spectra libraries is supported by the detector which makes the inspection of peak purity possible. Maintenance and exchange of the measuring cell is made simple by having direct access to it from the front panel. The base model can be converted to a UV/VIS instrument with the upgrade kit (A4446). This upgrade supports a wavelength range from 190 to 1,020 nm.
also avaliable as UV/vis/NIR-Detector
With a combination source of light for highly sensitive measurements between 190 and 1,020 nm
The new WellChrom Diode Array Detector K-2800 with a UV light source supports a wavelength range of 190 to 1,020 nm. Aside of having an enlarged linearity range, the K-2800 is distinguished by having an outstanding signal to noise ratio. Work with spectra libraries is supported by the detector which makes the inspection of peak purity possible. Maintenance and exchange of the measuring cell is made simple by having direct access to it from the front panel.
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| Specifications |
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For the UV/vis-Detector
Diode Array
1024 diodes in a ceramic chassis
Wavelength Range
190-740 nm
Light Source
Deuterium lamp
Spectral Resolution
2.4 nm (0.8 nm pixel distance)
Wavelength Accuracy
< 0.5 nm
Wavelength Reproducibility
< 0.1 nm
Signal-to-Noise Ratio
1 x 10-5 AU, according to ASTM, optical wavelength 10 mm, 1 ml/min methanol, λ= 254 nm, Δλ= 4 nm (±2 nm)
Linearity
0-2,5 AU
Drift
< 5 x 10-4 AU/h, according to ASTM E1657-94
Dimensions
220 x 185 x 340 mm (W x H x D)
Weight
11.7 kg
For the UV/vis/NIR-Detector:
Diode Array
1024 diodes in a ceramic chassis
Wavelength Range
190-1,020 nm
Light Source
Deuterium and Tungsten-Halogen lamp (combination source of light)
Spectral Resolution
2.4 nm (0.8 nm pixel distance)
Wavelength Accuracy
< 0.5 nm
Wavelength Reproducibility
< 0.1 nm
Signal-to-Noise Ratio
1 x 10-5 AU, according to ASTM, optical wavelength 10 mm, 1 ml/min methanol, λ= 254 nm/750 nm, Δλ= 4 nm (±2 nm)
Linearity
0-2,5 AU
Drift
< 5 x 10-4 AU/h, according to ASTM E1657-94
Dimensions
220 x 185 x 340 mm (W x H x D)
Weight
12.0 kg
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