Atomic Absorption Analyzer - AAS
Principal of Atomic Absorption Analyzer:
Atomic absorption spectroscopy (AAS) is a method of quantitative analysis based on the absorption of characteristic spectral lines by atomic vapors produced by matter.
The principle of atomic absorption spectrophotometer is to convert the substance to be analyzed into a solution in an appropriate way, and the solution is introduced into the atomizer in a fog. At this point, the element under test is atomized into a ground state atomic vapor in the atomizer. When the characteristic spectral line emitted by the light source with the same wavelength absorbed by the measured element passes through the ground state atomic vapor, the light energy is weakened by the absorption of the ground state atom, and the relationship between the degree of weakening (absorbance) and the number of ground state atoms (element concentration) under certain conditions follows the Lambert-Beale law. After being absorbed by the ground state atom, the spectral line is divided by the spectral system, received by the detector, converted into an electrical signal, and then amplified by the amplifier, and the absorbance or spectral diagram is displayed by the display system.
Application of Atomic Absorption Analyzer:
Application in theoretical research
Applications in elemental analysis
Application of organic matter analysis
Application of metal chemical form analysis
Features of Atomic Absorption Analyzer:
- Win7, Win10 and other environment English software, easy to use, friendly interface, support data output and editing in Excel, Word and other formats, built-in expert database system, avoid reading manuals during the analysis process.
- The instrument adopts a fully automatic lamp stand with 8 lamp positions (optional 2 lamp positions can be plugged into a high-performance hollow cathode lamp), with functions such as automatic rotation, automatic switching and collimation, and multi-lamp lighting and preheating.
- The instrument has various automatic and intelligent functions such as automatic peak-finding setting and scanning, automatic setting of slit width and energy, automatic wavelength optimization, and no need to reset when switching wavelengths.
- The instrument has a built-in reliable safety monitoring and protection system, which monitors the flame state in real time, and has the functions of automatic flameout and alarm protection when abnormal air pressure, gas leakage, etc. are abnormal.
- The instrument supports the expansion of various functions and accessories such as hydride method, flame emission method, oxygen-enriched air-acetylene high temperature flame method, and flame autosampler.
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