Atomic Absorption Spectroscopy (AAS) is laboratory equipment used for analyzing the concentration of trace metals in a sample. It is a powerful tool for qualitative and quantitative analysis of metallic elements, such as lead, cadmium, and mercury, in a variety of samples, including water, soil, food, and biological specimens.
The AAS works by vaporizing and ionizing the sample in a flame or graphite furnace and then measuring the absorption of a specific wavelength of light by the metal ions. The intensity of the absorption is directly proportional to the concentration of the metal in the sample.
AAS is widely used in the environmental and agricultural analysis, as well as in the pharmaceutical, food, and chemical industries. It can be used to detect contaminants, monitor pollutants, and measure the levels of essential elements in a variety of matrices.
There are two types of AAS instruments: flame AAS and graphite furnace AAS. Flame AAS is faster and more versatile, while graphite furnace AAS is more sensitive and can detect lower concentrations of metals.
As we know AAS is a powerful and widely used laboratory equipment for analyzing the concentration of trace metals in a variety of samples. Its high sensitivity, accuracy, and precision make it an indispensable tool for many analytical laboratories.