Classification: Graphite Furnace Series
Product Overview
The GGX-920 Zeeman Graphite Furnace Atomic Absorption Spectrophotometer is a high-performance ultra-trace elemental analysis system designed for maximum sensitivity and accuracy. As part of our established atomic absorption product range, the GGX-920 combines advanced Zeeman background correction technology with a high-precision graphite furnace system to deliver exceptional analytical performance.
With stable operation, a high degree of automation, and an intuitive software interface, the GGX-920 is engineered for reliable, efficient, and flexible operation in modern analytical laboratories.
Key Applications
The GGX-920 is widely used across a broad range of industries, including:
- Food safety and hygiene testing
- Environmental monitoring and protection
- Water quality analysis (surface, groundwater, and drinking water)
- Geological and mining laboratories
- Metallurgical analysis
- Agricultural testing
- Pharmaceutical and commodity inspection
- Academic research and education
Detectable Elements
The system is designed for ultra-trace determination of more than 70 elements, including:
Gold (Au), Silver (Ag), Copper (Cu), Lead (Pb), Zinc (Zn), Manganese (Mn), Potassium (K), Sodium (Na), Calcium (Ca), Magnesium (Mg), Iron (Fe), Cadmium (Cd), and many others.
It is suitable for analysis of food samples, environmental water samples, and various geological and industrial materials.
Key Features
Advanced Zeeman Background Correction
- Full-spectrum Zeeman background correction with high accuracy.
- Transverse Zeeman system with constant magnetic field design.
- Improves analytical precision while reducing energy consumption.
High-Performance Optical System
- Wavelength range: 190–900 nm
- Spectral bandwidth: 0.2, 0.4, 1.0, 2.0 nm (automatic switching)
- Czerny-Turner (C-T) optical design with 1800 lines/mm diffraction grating
- 270 mm focal length for high energy throughput and UV performance
- Automatic peak search and bandwidth optimisation
Intelligent Lamp System
- Automatic rotating 8-lamp turret
- Simultaneous preheating of all lamps
- Patented slip-ring design eliminates cable twisting and improves reliability
Intelligent Automation & Software
- Automatic peak setting and spectral optimisation
- Multi-mode calibration: standard curve and standard addition methods
- Curve recalibration and slope reset functions
- Editable calibration curves and blank correction options
- Dual-language (Chinese/English) software with strong data traceability
Graphite Furnace System
High-Precision Furnace Control
- Integrated graphite furnace design with built-in power supply
- Current and voltage vector control with temperature accuracy ≤ 0.5% (at 2000°C)
- Temperature range: room temperature to 3000°C
- Heating rate ≥ 2000°C/s
- Longitudinal heating ensures uniform temperature distribution
Advanced Safety Monitoring
- Gas pressure monitoring system protects graphite components
- Furnace body over-temperature protection
- Power transformer temperature monitoring
- Graphite tube breakage or improper installation detection
- Automatic safety lockouts during abnormal conditions
Automatic Sampling System
- Patented 64-position autosampler
- High-precision sample and cleaning pumps
- Dual-injection vertical sampling design
- Injection accuracy ≤ 0.5% (20 μL)
- Supports automatic standard solution preparation and dilution
- Improves workflow efficiency and reproducibility
Safety Features
The GGX-920 is equipped with comprehensive safety systems to ensure stable and secure operation:
- Protective gas pressure monitoring to prevent furnace damage
- Over-temperature protection for graphite furnace body
- Transformer temperature monitoring
- Graphite tube breakage and loosening detection
- Automatic measurement interruption under unsafe conditions
Summary
The GGX-920 Zeeman Graphite Furnace Atomic Absorption Spectrophotometer delivers exceptional sensitivity, stability, and automation for ultra-trace elemental analysis. With advanced Zeeman correction technology, high-precision furnace control, and intelligent software, it is an ideal solution for laboratories requiring high-performance analytical capability.