AAS - Atomic Absorption Spectrophotometer QualiAAS 3000FG (Flame + Graphite Furnaces Type)
AAS - Atomic Absorption Spectrophotometer QualiAAS 3000FG (Flame + Graphite Furnaces Type) integrated atomic absorption spectrophotometer stands out as a critical precision tool for metal analysis. It offers exceptional selectivity, a broad application range, high sensitivity, straightforward operation, cost-effectiveness, and precise accuracy. It is widely used in fields such as geology, mining, metallurgy, agriculture, forestry, soil and fertilizer management, hydrology and environmental protection, the petrochemical industry, food and drug safety, and third-party testing.
- Fully Automatic Switching: The flame and graphite furnace analysis device offers seamless, time-saving automatic switching, eliminating the need for manual intervention.
- High-Reliability Flame System: Features automatic flow control and ignition for consistent performance.
- Graphite Furnace Safety: Multiple temperature control protection systems, including double air circuit breakers, prevent current overload and abnormal temperature rise.
- Gas-Liquid Separation System: Ensures optimal instrument performance in high humidity and limited gas supply conditions.
- Safety Interlocks: Includes multiple safety interlocking devices and alarm systems for automatic power outage and protection against safety anomalies.
- Modular Design: The instrument’s modular structure and circuit design facilitate easy replacement or repair by users.
- Functional Extensions: Supports hydride method, flame emission method, high-temperature flame method, and various accessories like graphite furnace automatic sampler and flame automatic sampler.
Performance index
Major technical indicators
- Wavelength Range: 170 nm to 900 nm
- Wavelength Error: No more than ±0.10 nm
- Wavelength Repeatability: No more than 0.05 nm
- Baseline Stability: Drift no more than 0.002 Abs, noise no more than 0.001 Abs (steady 30 min); drift no more than 0.002 Abs, noise no more than 0.001 Abs (dynamic 15 min)
- Resolution: Spectral bandwidth deviation no more than 0.02 nm, Manganese double line valley to peak energy ratio no more than 25%
- Flame Method for Copper: No more than 0.002 μg/mL (LOD), no more than 0.025 μg/mL/1% (characteristic concentration), no more than 0.3% (precision)
- Graphite Furnace Method for Cadmium: No more than 0.4 pg (LOD), no more than 0.5 pg (characteristic content), no more than 2.0% (precision)
- Background Correction Ability: Deuterium lamp calibration 1.0 Abs, background more than 90 times; self-absorption method correction 2.0 Abs, background more than 90 times
Light source system
- 8 Lamp Position Design: High-performance lamp function with automatic rotation, switching, collimation, and other capabilities.
- Simultaneous Illumination: Supports 1 to 6 lights at the same time, allowing multiple lights to preheat simultaneously, which boosts analysis efficiency.
- Memory Function: The memory settings for each lamp element can be freely edited without needing custom coding.
Optical System
- Monochromator: Features a typical Czerny-Turner design with a focal length of 277 mm.
- Diffraction Grating: 1800 grooves/mm with a blaze wavelength of 250 nm.
- Spectral Bandwidth: Options of 0.1 nm, 0.2 nm, 0.4 nm, 0.8 nm, and 1.6 nm, all automatically adjustable.
- Photomultiplier Tube Detector: Imported, high sensitivity with a wide spectral bandwidth.
- Automation: Includes automatic peak picking and scanning, automatic spectral bandwidth and energy settings, automatic wavelength optimization, and automatic wavelength changes without the need for resetting.
Flame system
- Burner Head: 10 cm Ti burner head for air-acetylene flame, includes emission burner.
- Spray Chamber: Made of PPS material, offering corrosion resistance, high temperature resistance, flame retardancy, good hydrophobicity, and high strength.
- Adjustable Burner Head: Automatically adjusts height and horizontal position, with a rotatable burner angle.
- Automatic Ignition/Flame-Out: Features high precision mass flow control system for fully automated fuel gas flow control and adjustment.
- Flame Pedal Reading: Provides easy-to-read detection data.
Graphite Furnace System
- Longitudinal Heating GF System: Capable of reaching temperatures up to 3000℃, with a heating rate exceeding 3000℃/s.
- Temperature Control: Two selectable modes: optical and constant voltage. Both slope and stepped temperature programming are available, with a precision error no more than 1%.
- Automatic Adjustment: Fully automatic height and horizontal position setting and optimization for the GF.
- Gas Control: Inner gas, external gas, and make-up gas are controlled separately. Equipped with a circulating water and gas flows monitoring system.
- Graphite Tubes: Compatible with various types of graphite tubes, including straight, platform, and concave.
Software working station
- One-Key Operation: Simplifies instrument optimization and supports multi-task analysis.
- Repeat Measurements: Allows for 1 to 99 repeat measurements, with automatic calculation of average value, standard deviation, RSD, and more.
- Automation: Includes automatic curve fitting, re-slope, concentration, and content calculation, complete with a standard addition method.
- Data Output: Prints test data and analysis reports in multiple formats like Word and Excel.
Safety protection
- Comprehensive Safety Package: Includes both hardware and software dual alarm systems to ensure full safety performance.
- Flame System: Automatic gas cut-off, shutdown, and alarms in case of abnormal status, air pressure issues, ignition failure, gas leakage, abnormal flow rates, and more.
- Graphite Furnace System: Automatic pause, cooling, and alarms during abnormal furnace states, water and gas circuit control failures, graphite tube issues, and temperature control failures.
- Independent Safety Devices: Includes flame emergency shutdown protection switch and graphite furnace cut-off high current protection switch.
Other functional configurations
- Graphite Furnace Automatic Sampler (Optional):
- Independent sampler for easy flame changes without adjustments.
- Supports 150+5 optional slots (standard 60+6 slots) with universal consumable sample cups, reducing daily investment.
- Imported dual pump sampling system with 100 μL injection pump and 1 mL cleaning pump, injection repeatability error ≤ 0.5%.
- Self-calibration probe starting position, liquid level depth tracking, single point curve matching, automatic dilution/concentration, and high flow cleaning and residue removal functions.
- Flame Automatic Sampler (Optional):
- Independent sampler, user-friendly for flame analysis, allowing graphite furnace changes without adjustments.
- Patented sample tray for quick removal/installation of standard solutions and sample cup holders, simplifying preparation and cleaning.
- 70 sample trays with single cup volume ≥ 20 mL, using universal consumable sample cups to reduce daily investment.
- Features automatic initialization, correction of injection position, and high flow multi-stage cleaning.
- Oxygen-Rich High-Temperature Flame (Optional):
- Avoids hazardous chemicals like N2O, enabling high-temperature element analysis (e.g., aluminum, barium, molybdenum, vanadium).
- Wide Slit Combustion Head and Adjustable Nebulizer (Optional):
- Ensures stable and reliable analysis of complex samples.
- Hydride Vapor Generator (Optional):
- Supports hydrogenation method analysis for element performance expansion.
- Audit Trailing Software (Optional):
- Provides electronic signature function, user permission management, analysis process traceability, and full compliance with audit trailing standards.
