What is the meaning of atomic absorption spectrophotometer?

: a method of spectrophotometry that relies on the absorption of specific frequencies of light by atoms in order to identify the chemical composition of a sample …

What is meant by atomic absorption?

Atomic absorption is a special application in which ground-state atoms of metals absorb light at very specific wavelengths corresponding to the energy needed to cause electronic transitions in their electron orbitals. Fig. 7.8 shows the configuration of an atomic absorption spectrophotometer.

What is the use of atomic absorption spectrometer?

Atomic absorption spectrometry (AAS) is an easy, high-throughput, and inexpensive technology used primarily to analyze elements in solution. As such, AAS is used in food and beverage, water, clinical research, and pharmaceutical analysis.

What is the difference between UV spectrophotometer and atomic absorption spectrophotometer?

The key difference between atomic absorption spectroscopy and UV visible spectroscopy is that atomic absorption spectroscopy is based on the absorption of light by atoms or ions, whereas UV visible spectroscopy involves the absorption or reflectance of a part of the UV range and complete adjacent visible regions of the …

What is atomic absorption and emission?

Atomic absorption is the absorption of electromagnetic radiation by atoms while atomic emission is the emission of electromagnetic radiation from atoms. … By emission, excited electrons are coming back to a lower level. Therefore, this is another significant difference between atomic absorption and atomic emission.