The difference between single graphite furnace graphite furnace atomic absorption spectrophotometer and double graphite furnace
Flame atomizer: it consists of three parts: sprayer, premixing chamber and burner. Features: easy operation and good reproducibility.Graphite furnace atomic device is a type of system will be placed in the pipe wall, graphite platform, carbon sample holes or graphite crucible with electric heating to a high temperature to achieve atomization. Tubular graphite furnace is the most commonly used atomization device.The atomization program is divided into drying, ashing, atomization and high temperature purificationThe atomization efficiency is high: under the adjustable high temperature, the sample utilization rate is 100%High sensitivity: the detection limit is 10-6~10-14Small amount of sample: suitable for determination of refractory elements
The graphite furnace atomic absorption spectrometer and the flame atomic absorption spectrophotometer belong to the atomic absorption spectrometer. They are composed of light source, atomization system, spectroscopic system and detection system.
The flame burner operation condition selection (TS lifting capacity, flame type, burner height)Selection of optimum operating conditions for graphite furnace (optimum atomization temperature of inert gas)
10-9g/ml orders of magnitude can be measured by Flame Atomic Absorption Spectrometry10-13g/ml order of magnitude can be measured by Graphite Furnace Atomic Absorption SpectrometryIn addition to its excellent performance, flame atomic absorption has been added with an on-line dilution device and switchable single - and double - path optical systems.Graphite furnace atomic absorption adopts transverse heating graphite tube, the heating speed can be as high as 3800K/ seconds, and can set up as many as 30 heating steps to suit all kinds of applications.
