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  5. Gilson - Gilson 112 UV Detector

Gilson - Gilson 112 UV Detector

Manufactured by  Gilson
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For chromatography applications in environmental, pharmaceutical, and biological markets, the 112 UV detector shows data at 254 and 280nm wavelengths

For chromatography applications in environmental, pharmaceutical, biological, and food and beverage markets, this simple fixed wavelength, filter-based 112 UV detector provides data at 254 and 280 nm wavelengths 
 
Rugged, economical, fixed-wavelength detector for analytical or preparative HPLC. A front panel knob allows selection of the wavelength to monitor the absorbency of almost any sample.
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Features of Gilson 112 UV Detector
• Provides detection at 254 and 280 wavelengths     • Fixed-wavelength design provides increased sensitivity and durability     • Event-marking function allows convenient marking of the point of injection or advance of a fraction collector on the recorder or data system     • 10-mm pathlength analytical flow cell offers excellent sensitivity ranging from 0.001–1 AUFS (Absorbance Units, Full Scale)     • Dual-beam optics ensure equal illumination of both the sample cell and the reference aperture to maintain baseline stability at high sensitivity     • Easy-to-change lamp and filter assemblies for selecting wavelengths     • Easy, one-step baseline function helps reduce operating and setup time
General Specifications

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Additional Specifications

Manufacturing Standards: Meets applicable safety and EMC certification standards; UL and CE certified    
Autozero Range: –0.5 to + 1 AU, to within 5 x 10-5 AU; front panel or remote activation    
Communication Interface: Event and autozero inputs; three channels output data to a recorder    
Detector Type:UV silicon photodiode     
Drift:3 x 10-4 AU/hr    
Environmental Conditions:Indoor use    
Altitude: up to 2000 m    
Temperature range: 5–40°C    
Air pressure: 75–105 kPa    
Pollution degree: 1 or 2, in accordance with IEC 66    
Humidity: Maximum relative humidity 80% for temperatures up to 31°C, decreasing linearly to 50% relative humidity at 40°C    
Event Marker:Negative deflection on trace; front panel or remote activation    
Flow Cell Sensitivity:<4 x 10-4 AU for flow step of 0.5–2 mL/min with methanol    
Front Panel:LCD indicator shows percent of full-scale output    
Lamps:Standard: Mercury (254 nm), life of 2000 hours; Phosphor-coated Mercury (280 nm), life of 500 hours    
Lamp Warm-up Time:One hour maximum    
Monochromator:Dual beam with interference filter, to monitor at a single wavelength    
• Range: 254 and 280 nm standard (selectable on front panel)    
• Spectral bandwidth: 0.2 nm at 254 nm; 12 nm at 280 nm    
Noise with Air Block Installed:254 nm, short term, peak-to-peak, 4 x 10-5 AU/cm; long term, peak-to-peak, 6 x 10-5 AU    
280 nm, short term, peak-to-peak, 6 x 10-5 AU/cm; long term, peak-to-peak, 6 x 10-5 AU

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