Liaoning Atomic Absorption Spectrophotometer
1. Optical System
Wavelength Range: 190nm - 900nm, Auto-adjust
Grating Line Density: 1800 lines
Monochromator Czerny-Turner type image-nulling monochromator
Spectral Bandwidth: 0.1, 0.2, 0.4, 1.0, 2.0 nm, multi-step automatic switching
Wavelength: ±0.20nm
Wavelength Repeatability 0.1nm
Baseline Drift: Static 0.005A/30min, Dynamic 0.008A/30min
Detector - Wide spectral range photomultiplier tube
Resolution: Can distinguish between the two lines of manganese lamp at 279.5nm and 279.8nm, and the energy between the two spectral lines should be less than 20%.
2. Light Source System
Light Socket 3-Light Socket
Light power supply method: 400Hz square wave pulse
Light Current Adjustment Range: 0 — 10mA Average Current
3. Atomicized system
Flame Analysis Method
Detection Limit (Cu) 0.006 μg/ml
Burner 100mm Full Titanium Metal Burner
Precision RSD ≤ 1%
Sprayer High-efficiency Glass Sprayer with Metal Sleeve
Aerosol Room / Corrosion-Resistant Full-Plastic Aerosol Room
Safety Measures: Equipped with multiple automatic safety protection features, including acetylene gas leak alarms and automatic shutdown systems.
Flameless (Graphite Furnace) Analytical Method
Detection Limit (Cd) ≤ 4 pg
3. Instrument Features
1. Total internal reflection optical system, full-spectrum achromatic correction; after focusing point adjustment, changing to any wavelength will not alter the focus point. Features automatic wavelength scanning and peak detection.
2. Features Deuterium lamp buckle background, self-adhesive buckle background.
3. Unique full titanium burner design, providing stable combustion and rapid heat equilibrium.
4. Auto-adjusts negative high voltage, lamp current, and allows for flexible positioning of element lamps to maximize energy output, with automatic gas leak shutdown protection. Three hollow cathode lamp holders. Automatic control system capable of automatic wavelength scanning. One element lamp preheating, the other two element lamps preheating.
5. Graphite Furnace Heating: Users can freely set heating curves as needed.
