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A.A.S Spectrophotometers
Aurora AI 1200 Graphite Furnace Atomic Absorption Spectrophotometer
The AI 1200 Atomic Absorption Spectrometer's graphite furnace reduces and even eliminates many of the problems that are normally associated with GFAAS. These include; memory effects, poor atomisation efficiency, slow analysis and high background. How is this accomplished?
Transverse Heating
Spatially isothermal atomisation is critical to achieving accurate analysis with GFAAS. Non-isothermal conditions cause memory effects, increased background and poor atomisation efficiency.
The graph shown above demonstrates the spatially isothermal temperature profile of the AI 1200's transversely heated graphite furnace.
High Heating Rate
- Heating programs of up to 30 individual steps.
- Ramp time can be varied in steps of 0.1 second.
- Hold time is selectable from 0 seconds up to 99 seconds in steps of 0.1 second.
Superior Temperature Control
The AI 1200 uses a specially designed temperature sensor for the temperatures in the low temperature range in addition to the high temperature sensors already found in previous models. This sensor has its own calibration program that results in a temperature control that is accurate to within 1 degree celsius. This provides actual objective data, unlike competitive instruments, because the Aurora system does not use simulated logrithms.
