With 2 x 45 Standard Test Tube Sample Racks Atomic Fluorescence Spectrometer
Specifications:
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Sample Automisation |
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Atomizer |
Quartz tube furnace with auto ignition of argon/hydrogen flame |
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Furnace heating |
Computer controlled heating |
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Hydride generator |
Continuous flow high performance for cold-vapour mercury and hydride determinations of As, Se, Te, Bi, Sb, Sn, Zn, Pb, Cd, Ge |
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Gas requirement |
High purity argon gas (99.99%) 30psi pressure |
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Sample and Delivery |
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Peristaltic pump |
3 channel pump with 3 adjustable pressure control clamps and programmable speed control |
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Exhaust system |
Built in with filter to decontaminate pollutants |
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Gas/liquid separator |
High efficiency two-stage gas-liquid separator |
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Autosampler |
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Type |
XYZ built in design |
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Sample introduction |
High sample capacity, automated introduction of sample and standards by motorized syringe drive |
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Sample capacity |
2 x45 standard test tube sample racks |
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Optics |
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Optical design |
Short focal length, non-dispersive integrated optical design |
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Light source |
3 channel simultaneous element analysis using computer controlled. Modulated and pulsed, hollow cathode light source |
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Baseline stability |
<2% |
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Linear range |
>10 |
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Computer System |
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Operating software |
PF Win software |
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Safety |
Alarm for low gas <50ml/min. Gas cut off in the event of power supply loss |
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Power requirements |
220Vac+10% 50/60hz 300W |
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Dimensions |
100.6x58x55cm |
The Atomic Fluorescence Spectroscopy (AFS) technique is widely used for determination of hydride forming elements and Mercury analysis. The technique provides an alternative to the conventional method of connecting a hydride generator to an Atomic Absorption Spectrophotometer (AAS). Due to the high intensity Hollow Cathode lamp source and low baseline noise offered by this technique, the usable sensitivity is greatly improved offering very low detection limits (ppt).
The AFS instrument fulfils the analysis by means of simultaneous detection, accurate sample introduction and stable furnace temperature control complementing the more widely used AAS flame/graphite systems.
