AAS-320N Double Beam Atomic Absorption Spectrophotometer

The AAS-320N Atomic Absorption Spectrophotometer is a high-performance analytical instrument designed for precise elemental analysis in laboratory environments.

• High-energy optical path: Double-beam total reflection optical system with full-band achromatic capability and optimized light spot transformation for increased luminous flux
• Reliable baseline stability: Dual-beam system compensates for light source drift, wavelength drift from temperature changes, and electronic circuit drift
• High measurement precision: Precise voltage stabilizing and flow stabilizing devices ensure stable flame operation with low noise
• Built-in computer data processing: Integrated micro-computerized digital circuit with LCD display for comprehensive data analysis
• Long-life corrosion-resistant atomization system: Combustion head made of corrosion-resistant iron alloy steel for stable measurement sensitivity
• Multiple signal modes: Absorbance, concentration, emission, and emission concentration measurements
• Versatile analysis methods: Supports flame absorption, flame emission, graphite furnace atomic absorption, and hydride generation
• Safe air circuit system: Equipped with comprehensive safety protection devices
• Complete accessories: Ready for immediate use upon purchase with optional data collection software

• Optical system: Double beam total reflection, C-T monochromator
• Grating: 1800 lines/mm
• Blazing wavelength: 250nm
• Wavelength range: 190nm - 900nm
• Wavelength indication error: ±0.5nm
• Wavelength repeatability: ≤±0.3nm (unidirectional)
• Spectral bandwidth: 0.2nm, 0.4nm, 0.7nm, 1.4nm, 2.4nm, 5.0nm
• Wavelength scanning speed: 1.2nm/min; 300nm/min
• Resolution: <40%
• Baseline stability: ±0.005 A/30min
• Characteristic concentration: ≤ 0.04μ g/ml/1% (Cu element)
• Detection limit: ≤ 0.007μ g/ml (Cu element)
• Background correction capability: Greater than 30 times
• Burner: 100mm single-slit titanium alloy
• Sprayer: High-efficiency glass atomizer
• Spray chamber: Explosion-proof pre-mixed
• Communication ports: RS232 and USB
• Power supply: 220V±22V, 50Hz±1Hz, 200W
• Host dimensions: 1000mm×530mm×425mm
• Net weight: 130kg

• Graphite furnace system
• Hydride generator
• Hollow cathode lamp
• Graphite tube

The graphite furnace system is a specialized accessory for quantitative analysis of trace elements using graphite furnace atomic absorption method, designed for integration with the AAS-320N atomic absorption spectrophotometer.

• Photoelectric rapid temperature rise and temperature control function
• External data station connectivity for temperature and absorption curve display
• LCD back optical character graphic display with menu-style operation
• Single wiring pipe connection for easy installation and debugging
• Quick switching between flame method and graphite furnace method
• Pneumatic closed structure for constant pressure and reliable contact
• Comprehensive safety protection including overheating, overcurrent, overpower protection and argon pressure monitoring

• Temperature range: 20℃~3000℃
• Light control temperature range: 1500℃~3000℃
• Heating rate: 3000℃/S
• Characteristic quantities: Cu≤ 1×10⁻¹⁰g, Cd≤ 1×10⁻¹²g
• Measurement repeatability: Cd≤ 4%
• Detection limit: Cd≤ 1.0×10⁻¹²g
• Power supply: AC220V±22V 50Hz±1Hz
• Rated power: 6000W
• Analytical precision: Better than national standard