|The atomic absorption spectrometer is the 3rd generation AAS instrument. For more than 10 years, it has built a reputation in elemental analysis research, with unbeatable performance, sensitivity and flexibility. These instruments are used in a variety of fields including environmental, agriculture, clinical, and mining. Standard configurations include the Flame (F), Flame/Graphite Furnace (F/GF), Flame/Vapour Generation (F/VG) and Flame/Graphite Furnace/Vapour Generation (F/GF/VG) enabling analyses at multiple concentration levels.
Feature and Benefits:
The configuration of the atomization compartment allows rapid changeover between atomization sources.
Gas control: Software controlled with automatic changeover between different flame systems.
Spray Chamber: Solid Teflon spray chamber, inert to acids and organic solvents.
Burner: Corrosion resistant Titanium burners for both air/acetylene and nitrous-oxide/ acetylene.
1. Air – dry, oil and dust free @ 50-80 psi Typical flow rate 10 – 12 L/min
2. Acetylene (99% pure) @ 8-10 psi Typical flow rate 0.5 – 8.0 L/min
3. Nitrous-oxide (99.5 % pure) @ 50-80 psi Typical flow rate 10 –12 L/min Flow
Flow-rate / Control: Software controlled.
Sample Introduction: Automatic on-line dilution and preparation of calibration curves from a single standard.
Fume Exhaustion: Conventional laboratory extraction system.
Safety System: Safety Interlock mechanism that monitors the burner type, burner fitted, gas pressures. Flame on/off sensors; Power failure automatic shutdown. Liquid trap system, pressure relief plug and flame shield to protect from UV radiation.
Transversely-heated Graphite Furnace:
Purge Gas: Computer controlled flow rate of Ar or He from 0 to 5.0 L/min.
Furnace Tube: Pyrolytically coated integrated contact cuvette, 5.7mm internal dia. x 19mm, transversely heated, temperature gradient of less than 20°C.
Temperature Range: Programmable from ambient up to 3000°C. Full range temperature sensors for direct real-time temperature display and control over the full temperature range.
Furnace heating rate: Up to 3800 K/s
Program flexibility: Heating programs of up to 30 steps. Each step can be programmed separately.
Ramp Time: The heating time of the graphite tube to the preprogrammed temperature can be varied in steps of 0.1 s.
Hold Time: Selectable from 0 s up to 25 s in steps of 0.1 s
Safety: Gas and cooling water safety interlocks.
Instrument mounted with high capacity XYZ autosampler for flame, graphite furnace, vapor generation:
Dispensable reagent volume: Up to 1000µL, selectable in increments of 1µL.
Sampling capacity: Holds standard 192 sample cup/test tube (0.5 or 10 mL) sample racks. Also compatible with standard solvent extraction test tubes, ICP test tubes, micro plates and custom made trays.
Super-Fast-Dry function: Software controlled preheating and sample injection speed. Allows for 3 sample/min turn-around time with GF
Sample Introduction: Random access with adjustable sample/reagent volume, automatic standard and sample preparation, standard addition and spike.
HC Lamp: Zinc (Zn), Copper (Cu), Iron (Fe), Manganese (Mn), Aluminum (Al), Cadmium (Cd), Arsenic (As), Magnesium (Mg), Lead (Pb), Calcium (Ca), Cobalt (Co), Sodium (Na), Potassium (K), Chromium (Cr) & Mercury (Hg)- 1 each
Standard solution, 1000ppm, 500ml 1 vial for each element
Ventilation Kit: Includes exhaust hood, blower and 50ft flexible metal tubing, adapter and hose clamps.
Air Compressor: Oil-free air supply to flame burner head, auto shut off, and pressure regulator
Cooling Bath: Re-circulating cooling bath is highly recommended for labs that are subject to hard water conditions or do not have access to reliable running water. Use of the re-circulating bath eliminates the potential for scaling inside the cooling system.
Gas Regulator: Argon (Ar) Gas Regulator with flow meter, Acetylene (C2H2) Gas Regulator, Nitrous Oxide (N2O) Gas Regulator
Nitrous Oxide Burner Head: Necessary for the analysis of elements that require the hotter N2O/Acetylene flame.
Nebulizer: Pt – Ir
Quartz Heating Cell: 10 pcs
Pyrolytically Coated Graphite tube for GF: 10 per pack
Vapor and Hydride Generator:
Absorption Cell: Constant temperature electro-thermally heated quartz absorption cell with temperature range of ambient to 1000 °C
Pump: Continuous flow peristaltic pump with speed control
Accessories: High efficiency mixing section, gas-liquid separator, tubing and connectors included
Flame Online Dilution: Offers calibration from a single standard and over-range sample dilution for flame analysis.