GeminAA PLUS

Dual-atomizer AAS with integrated flame and graphite furnace design, automated switching, and advanced safety features.

• Status: Active
• Country: Australia
• Elemental: Yes
• Type of measurable elements: Metals and non-metals
• Measurable isotopes/elements: Over 70 elements, including heavy metals and trace elements
• Signal stability, relative standard deviation : RSD ≤0.45% for Cu (Flame) and RSD ≤1.8% for Cd (Furnace)
• Atomizer types : Flame
• Atomizer types : Furnace
• Bandwidth : 0.1, 0.2, 0.4, 1.0, 2.0 nm
• Wavelength range : 190 to 900 nm
• Wavelength accuracy : ±0.1 nm
• Background correction : Deuterium lamp and optional self-absorption background correction
• Optics type : High-resolution optical system with 1800 lines/mm diffraction grating
• Burner head material : Pure titanium burner with 50 mm and 100 mm options for Air/Acetylene and N₂O/Acetylene configurations
• Gas management : Comprehensive gas control for both flame and graphite furnace modes
• Detection system : Photomultiplier tube (PMT)
• Monochromator : Czerny-Turner monochromator with high resolution and quartz optics
• Lamp carousel : 8-lamp automatic turret
• Photomultiplier : High-sensitivity PMT for precise trace analysis
• Flame atomizer : Pure titanium burner with automatic flame height adjustment
• Furnace atomizer : Advanced graphite furnace with optical and max power heating modes, supporting temperatures up to 3000°C
• Furnace vision system : Integrated viewing system for real-time monitoring of the injection and atomization process
• Furnace heating rate/max temp : >3000°C with rapid heating of up to 3000°C/s
• Typical tube lifetime : Pyrolytically coated graphite tubes with over 1000 firings for typical Pb analysis
• Sensitivity (Furnace) : Cd detection: 0.2 fg
• Sensitivity (Flame) : Cu detection: ≤0.003 µg/mL
• Safety features : Interlocks for burner position, gas pressure, flame monitoring, over-temperature protection, and inert gas flow
• Power Requirements and Consumption : 220 V, 50 Hz, single phase; 200 W for the main unit and 4 kW for the graphite furnace
• Environmental requirements : Operating temperature: 10–35°C; Humidity: 20–80% non-condensing
• Dimensions and Weight: 880 mm L × 540 mm W × 450 mm H; 125 kg