The products of the atomic absorption spectrophotometer are made up of four parts.

Atomic absorption spectrophotometer is generally composed of four parts, namely light source (monochromatic sharp line radiation source), sample atomizer, monochromator and data processing system (including photoelectric converter and corresponding detection device).

There are two main types of atomizer, that is, flame atomizer and electrothermal atomizer. There are many kinds of flames, and the air acetylene flame is widely used nowadays. Graphite furnace atomizer is widely used in electrothermal atomizer, so atomic absorption spectrophotometer, flame atomic absorption spectrophotometer and atomic absorption spectrophotometer with graphite furnace. The atomization temperature of the former is between 2100 and 2400 degrees, and the latter is between 2900 and 3000 degrees.

Atomic Absorption Spectrophotometer Manufacturer Atomic Absorption Method: Atomic absorption method is based on the use of gaseous atoms can absorb a certain wavelength of light radiation, so that the electrons in the outer layer of the atom from the ground state to the excited state. Because of the different energy levels of the electrons in various atoms, a certain wavelength of radiation will be selectively resonantly absorbed. The resonant absorption wavelength is exactly equal to the wavelength of the emission spectrum of the excited atom, which can be used as a qualitative basis for elements, and the intensity of the absorption radiation can be used as a quantitative basis. Atomic absorption spectrometry has become the most widely used method for quantitative analysis of inorganic elements. Atomic absorption spectrometry (AAS) has the advantages of low detection limit, high accuracy (relative error less than 1%) and high selectivity (less interference) and fast analysis speed.

The wavelength of the spectrophotometer is visible. The optical path of visible spectrophotometer is checked before calibration / calibration. It excludes the poor environmental conditions of the laboratory, such as the optical path of the magnetic photometer. In order to get rid of the bad environmental conditions in the laboratory, such as the magnetic circuit is easy to cause optical faults and other factors, the wavelength is placed at 580 nm, the slit is placed within 2 nm, and the white filter paper is placed in the optical path to observe the color of the spot, so as to roughly adjust the wavelength to near the accurate range.

Manufacturers of atomic absorption spectrophotometer