Atomic absorption spectrophotometer is a commonly used analytical instrument in laboratories, mainly composed of four parts: light source, sample atomizer, monochromator, and data processing system. In principle, all methods of atomic absorption spectrophotometer can analyze about 70 elements on the periodic table, and about 20 are commonly used.

If the user mainly uses it to determine conventional elements and does not require high sensitivity, the flame atomic absorption spectrophotometer can be selected. Product performance mainly focuses on the degree of automation and auxiliary functions. If the user needs to analyze high-temperature elements and trace elements, or has high requirements for sensitivity, an atomic absorption spectrophotometer with a graphite furnace can be selected. However, it should be noted that the graphite furnace method is relatively complex to operate, the analysis cost is high, and the technical requirements for the operator are high.

For large-scale sample testing and analysis: stability > accuracy > detection limit > sensitivity > automation > appearance. For scientific research institutions: sensitivity > accuracy > detection limit > stability > automation > appearance. The ultimate goal of experimental analysis is to take the result as the goal, so here we emphasize that suitability is the fundamental requirement.