Atomic absorption spectrophotometer AA

AA Series: a complete range for high-precision elemental analysis

The AA series from Peak Instruments is a complete solution of atomic absorption spectrophotometers designed for elemental analysis laboratories. Designed to meet a wide variety of needs, this series includes several models with different atomisation modes (flame, graphite furnace or a combination of both) and is based on a modular design to simplify maintenance, optimise space and guarantee measurement reliability.

Each instrument is based on a Czerny-Turner optical system coupled with a 1800 lines/mm holographic diffraction grating. This system offers excellent spectral resolution over a wavelength range of 190 to 900 nm. Automated slit selection (from 0.1 to 2.0 nm) allows optimal adjustment for each type of analysis. The accuracy and repeatability of the wavelengths are tailored to low concentration detection requirements, thanks in particular to a UV photomultiplier tube that is sensitive across the entire range.

Combustion control is fully automated, with multi-level acetylene and air flow adjustments and integrated flame and pressure detection for maximum safety. Each device includes protective features: gas leak sensors, abnormal pressure alarm, graphite tube installation monitoring, temperature and water flow sensors. These devices ensure system stability and user safety.

Models with a graphite furnace allow homogeneous atomisation, even at very high temperatures (up to 3000°C), thanks to electronically controlled transverse heating. This process improves atomic efficiency and the reproducibility of results. The RGWIN AAS software allows full operation under Windows, with QA/QC options, calibration curve calculation, statistical functions and result printing.

Users can analyse more than 70 elements, including heavy metals, rare elements and alkalis, in a variety of matrices: biological, food, environmental and industrial samples. Thanks to their robust design and precision, Peak Instruments AA spectrophotometers are essential tools for demanding laboratories.

AA2914:

• Optical type: Single beam
• Model: Flame
• Lamp: Automated 4-lamp turret
• Background correction: Deuterium lamp (D2)
• Detection limit (Cu): < 0.008 µg/ml
• Repeatability: RSD < 1%

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AA2918:

• Optical type: Single beam
• Model: flame
• Lamp: Automated 8-lamp turret
• Background correction: D2 (auto), Self-absorption (optional)
• Detection limit (Cu): < 0.006 µg/ml
• Repeatability: RSD < 0.6%

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AA2928:

• Optical type: Double beam
• Model: flame
• Lamp: Automated 8-lamp turret
• Background correction: D2 + Self-absorption
• Detection limit (Cu): < 0.004 µg/ml
• Repeatability: RSD < 0.5%

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AA3014:

• Optical type: Single beam
• Model: Graphite furnace
• Lamp: Automated 4-lamp turret
• Detection limit (Cu): < 25 pg
• Repeatability: RSD < 4%
• Max. temperature: 3000 °C

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AA3018:

• Optical type: Single beam
• with graphite furnace
• Lamp: Automated 8-lamp turret
• Detection limit (Cu): < 25 pg
• Repeatability: RSD < 4%
• Heating: Up to 2000 °C/s

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AA6018:

• Optical type: Single beam
• Models: combined flame + graphite
• Lamp: Automated 8-lamp turret
• Background correction: D2 + Self-absorption (optional)
• Detection limit (Cu): < 0.006 µg/ml
• Detection limit (Cd): < 1.0 pg
• Max. temperature: 3000 °C

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AA6028:

• Optical type: Double beam
• Combined flame + graphite
• Lamp: Automated 8-lamp turret
• Background correction: D2 + Self-absorption
• Detection limit (Cu): < 0.004 µg/ml
• Detection limit (Cd): < 0.8 pg
• Repeatability: RSD < 2.5%