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The Dionex AD20 Absorbance Detector is a dual-beam, variable wavelength photometer. Full spectral capability is provided by two light sources: a deuterium lamp for ultraviolet detection and a tungsten lamp for visible wavelength operation. The Dionex AD20 features programmable wavelength selection and automatic calibration for precision, reproducibility, and ease-of-use.
Specifications:
| Optical System | Dual-beam, fiber-optic beamsplitter and concave holographic diffraction grating |
| Light Sources | Deuterium lamp (30 W) for ultraviolet spectrum analysis;
tungsten lamp (10 W) for visible spectrum analysis |
| Wavelength Range | 190 to 800 nm variable;
continuous in 1 nm steps |
| Wavelength Accuracy | ± 1 nm |
| Bandwidth | 8 nm |
| Absorbance Range | Discrete settings of 0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1.0, and 2.0 AU |
| Autozero Capability | 2 AU |
| Autozero Accuracy | ± 100 uAU |
| Noise | < 10 uAU peak-to-peak at 254 nm, 2-second rise time, flowing deionized water |
| Drift | < 100 uAU/hour (after warm-up)
< 100 uAU/oC (after warm-up) |
| Filter Rise Time | Discrete settings of 0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, or 10.0 seconds |
| Analog Output Range | Discrete settings of 0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1.0, and 2.0 AUFS |
| Cell Body | PEEK |
| Volume and Optical Path Length | Standard bore cell, used with 4 mm (0.016 in) columns: 9 mL volume, 10 mm (0.002 in) optical path length |
| Maximum Operating Pressure | 1.38 mPa (200 psi) with a heat exchanger;
3.45 mPa (500 psi) without a heat exchanger |
| Chemical Compatibility | The use of a base stronger than 0.1 M is not recommended, as it will etch the silica windows. |
This refurbished Dionex AD20 Absorbance Detector is in a great shape. It has been tested at SpectraLab Scientific.
A 90 days warranty is included.
We are professional to the stuffs. We encourage you to contact us to speak with one of our expert and professional team members.
Thanks for looking and we look forward to hearing from you!
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