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Article No.: A59201
Articlename: Highend Fluorescence Detector for Liquid Chromatography

Highend Fluorescence Detector for Liquid Chromatography

200 - 750 nm, fluorescence detector, including accessories

The fluorescence detector RF-20Axs provides world-class sensitivity, excellent maintainability and diverse validation / support functions. It supports a wide range of applications in the wavelength range of 200 to 750 nm from conventional analysis to high-performance analysis.With a signal-to-noise ratio of 2000 for the water-Raman band, the fluorescence detector is very well suited for trace analysis.Measuring cell tempering ensures the lowest possible

noise and drift values.
The integrated low-pressure mercury lamp allows easy wavelength accuracy verification. The xenon lamp and flow cell are directly accessible on the device, thus allowing a quick and easy handling and maintenance of the device by the user, thereby minimizing downtime. The lamp life is 2000 hours. When replacing the xenon lamp, no adjustment is required.

Key Features

Technical Data


Detector type Fluorescence detector
Detection channels 2
Number of signals 2
Light source xenon lamp, low-pressure; mercury lamp for wavelength accuracy check
Wavelength range 200 - 750 nm
Spectral bandwidth 20 nm
Wavelength accuracy ± 2 nm
Wavelength precision ± 0.2 nm Indicates the precision performance when the power is turned ON in single wavelength mode and the wavelength is changed.
Sensitivity can be set at three levels: HIGH (x 1), MED (x 32), LOW (x 1024)
Wetted materials SUS316L, PTFE (fluorocarbon polymers), quartz
Flow cell volume 12 µl
Time constants 11 levels can be selected, equivalent to "no filter", 0.05, 0.1, 0.5, 1.0, 1.5, 2.0, 3.0, 6.0, 8.0 and 10.0 seconds
Autozero auto zero function, basline shift function

Heated zone

Temperature range room temperature (ambient temperature) -10 °C up to 40 °C (at flow rates less than 2 ml/min, column oven temperatures less than 85 °C)


Gain can be set at three levels: x 1, x 4, x 16

Technical parameters

Ambient conditions operating temperature: 4 to 35 °C, relative humidity: 20 to 85 % (no condensation)


Power supply AC 100 V-120 V/220 V-240 V ± 10%, 400VA, 50/60 Hz
Dimensions 260 x 210 x 420 mm (W x H x D)
Weight 18 kg

Documents and more information

Certified Quality 

KNAUER is known for the quality of its products and has been certified several times. We produce high-tech laboratory instruments for research, routine analysis and production for 59 years.
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In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
See all CE Declarations of conformity

Innovation and quality - since 1962. Made in Germany.

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