The KNAUER AZURA® DAD 2.1L is a high-performance diode array detector designed for analytical, semi-preparative, and preparative liquid chromatography applications. Combining advanced optical technology, excellent sensitivity, and intuitive operation, the detector offers an affordable solution for demanding HPLC and UHPLC workflows.
The detector features a newly developed optical system and intelligent temperature management that ensure maximum sensitivity while minimizing baseline drift. Optional LightGuide flow cells based on total internal reflection technology maximize light throughput and minimize peak dispersion, resulting in superior signal-to-noise performance. An optional fiber-optic adapter allows physical separation of the flow cell from the detector, enhancing safety when handling hazardous, explosive, or toxic compounds.
Key Features
- High-performance diode array detector for HPLC and UHPLC
- Wavelength range from 190 to 700 nm
- 256-diode array with 2 nm pixel pitch
- Advanced optical system with optimized temperature management
- LightGuide flow cell technology for enhanced signal-to-noise ratio
- Wide selection of interchangeable analytical, semi-preparative, and preparative flow cells
- Optional fiber-optic adapter for remote flow cell positioning
- Internal holmium filter for wavelength verification
- Integrated leak sensor
- Front-access, tool-free lamp replacement
- Compatible with ClarityChrom®, OpenLAB®, Chromeleon™, PurityChrom®, and Mobile Control
- LAN and analog connectivity for easy integration into virtually any LC system
Technical Specifications
Detection System
- Detector type: Diode Array Detector (DAD)
- Number of diodes: 256
- Pixel pitch: 2 nm per diode
- Detection channels:
- 8 digital channels
- 4 analog channels
- Light source: Deuterium lamp with integrated GLP chip
- Wavelength range: 190–700 nm
- Spectral resolution: <10 nm (FWHM)
- Slit width: 7.0 nm
- Wavelength accuracy: ±1 nm
- Wavelength repeatability: ±0.1 nm
Performance
- Noise: ±5 µAU at 254 nm
- Drift: 400 µAU/h at 254 nm
- Linearity: >2.0 AU at 274 nm
- Maximum data rate:
- 100 Hz via LAN
- 12.5 Hz via analog output
Flow Cells
- Flow cells are not included and must be ordered separately
- Stainless steel and bio-inert configurations available
- Optional LightGuide total-reflection technology
Control and Communication
- LAN (RJ-45)
- USB service interface
- Analog inputs and outputs
- Mobile Control stand-alone operation
- Full software control through chromatography data systems
GLP Functions
- Lamp identification
- Lamp operating hours
- Lamp ignition count
- Comprehensive GLP reporting
Power and Dimensions
- Power supply: 100–240 V, 50–60 Hz
- Power consumption: 75 W
- Dimensions (W × H × D): 361 × 158 × 523 mm
- Weight: 12.2 kg
