Dionex AD25 Absorbance Detector with GS50 Gradient Pump

The Dionex AD25 absorbance detector, and GS50 gradient pump with DX-LAN, has a dual-beam with variable wavelength photometer, with an integrated holmium oxide filter for verification. 

Specifications:

– Decibel level: 52 db 

– Wavelength range: 190 nm to 800 nm variable; continuous in 1 nm steps

– Wavelength accuracy: ± 1 nm

– Bandwidth: <5 nm

– Autozero capability: 3 AU

– Autozero accuracy: ± 100 µAU

– Noise: ± 10 µAU peak-to-peak at 254 nm, 2-second rise time, flowing deionized water

– Drift: < 100 µAU/hour (after warm-up)

– Filter rise time: discrete settings of 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, and 10.0 seconds

– Analog output range: discrete settings of 0.001, 0.005, 0.01, 0.05, 0.1, 0.5, 1.0, 2.0, and 3.0 AU

The Dionex GS50 gradient pump is a microprocessor-based eluent (or mobile phase) delivery system. Its variable-speed, serial-piston design ensures pulse-free pumping for the most demanding applications. The GS50 delivers mixtures of up to four mobile phase components at precisely controlled flow rates. The selected mobile phase composition can be delivered as isocratic, isocratic proportioned, linear ramp, step, curved, or any combination of these. A DSP (Digital Signal Processor) provides high speed, extremely accurate control of pump flow.

Specifications:

Flow accuracy: <1% of set value or ±2 µL/min, whichever is greater

Flow precision: <0.2%

Compositional accuracy: <±1%

Operating pressure: 35 MPa (5000 psi), maximum Low delay volume: <400 μL

Standard delay volume: <800 μL 

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