(a) Draw a block diagram of an atomic absorption spectrometer (AAS). Briefly describe the function of each components. (b) What is the process of atomization in atomic absorption spectrometer? Describe the steps of the process in the correct sequence. (c) State TWO interferences that are encountered in atomic absorption spectrometer. Suggest ONE solution to overcome the problem.
Electronic Transitions and Spectroscopy
The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.
Photoelectron Spectroscopy
Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.
(a) Draw a block diagram of an atomic absorption spectrometer (AAS). Briefly describe the function of each components.
(b) What is the process of atomization in atomic absorption spectrometer? Describe the steps of the process in the correct sequence.
(c) State TWO interferences that are encountered in atomic absorption spectrometer. Suggest ONE solution to overcome the problem.
(d.) What is the main difference, in terms of instrumentation, between atomic absorption spectrometer and atomic emission spectroscopy?
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