Question

In: Chemistry

Why do we use atomic absorption spectroscopy?

Why do we use atomic absorption spectroscopy?

Solutions

Expert Solution

Solution :-

Atomic absorption spectroscopy is the analytical process which used to determine the quantitative analysis of the chemical elements by the absorption of the optical radiation by the free atoms.

In the atomic absorption spectroscopy the absorbance the standard solution with known concentration of the analyte is determined first then using that reference concentration then absorbance of the unknown solutions were determined from which the concentration of the unknown sample can be determined easily.

At the particular wavelength the absorbance of the solution depends on the concentration.

Electrons from the atomizers are promoted to higher energy levels for short period of time by absorbing the specific amount of the energy. Each element corresponds to a specific wavelength therefore this absorbance is converted to the concentration.

Therefore by using the atomic absorption spectroscopy we can determine the concentrations of the unknown solutions.


Related Solutions

The purpose of  an ionisation suppressant in atomic absorption spectroscopy is
The purpose of  an ionisation suppressant in atomic absorption spectroscopy is
Explain why atomic emission spectroscopy can be used for multi-elemental analysis, but atomic absorption is used...
Explain why atomic emission spectroscopy can be used for multi-elemental analysis, but atomic absorption is used mostly for quantification of single element.
Three major spectroscopic methods for elemental analysis atoms are Atomic Absorption Spectroscopy, Atomic Emission Spectroscopy, and...
Three major spectroscopic methods for elemental analysis atoms are Atomic Absorption Spectroscopy, Atomic Emission Spectroscopy, and Atomic Mass Spectroscopy. Briefly describe the physics behind each of the three methods.
Three major spectroscopic methods for elemental analysis atoms are Atomic Absorption Spectroscopy, Atomic Emission Spectroscopy, and...
Three major spectroscopic methods for elemental analysis atoms are Atomic Absorption Spectroscopy, Atomic Emission Spectroscopy, and Atomic Mass Spectroscopy. Describe 3-4 major parts of the experimental setup for each of the three methods.
Explain why atomic absorption spectroscopy and ion chromatographic (IC) technique are used as complementary techniques for...
Explain why atomic absorption spectroscopy and ion chromatographic (IC) technique are used as complementary techniques for water analysis.
UV spectroscopy question: Why do we always quote maximum absorption values with concentration and solvent?
UV spectroscopy question: Why do we always quote maximum absorption values with concentration and solvent?
Atomic absorption spectroscopy was used to determine the amount of aluminum in a sample of sunscreen....
Atomic absorption spectroscopy was used to determine the amount of aluminum in a sample of sunscreen. A blank solution was measured seven times to determine the detection and quantitation limits of the spectrometer. The blank readings were as follows: 0.0086, 0.0107, 0.0095, 0.0103, 0.0113, 0.0104, and 0.0094 AU. Determine the signal at the detection limit and the signal at the limit of quantitation for this method.
Atomic absorption spectroscopy was used with the method of standard additions to determine the concentration of...
Atomic absorption spectroscopy was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream. For the addition, 10.0 μL of a 1000.0 μg/mL Cd standard was added to 10.0 mL of the unknown solution. The results obtained are shown in the table. Absorbance Reagent blank 0.028 Sample 0.480 Sample plus addition 0.887 What is the concentration of the cadmium in the waste stream sample? c = μ g /...
Why would atomic absorption spectroscopy be less sensitive to low source temperature, assuming efficient atomization?
Why would atomic absorption spectroscopy be less sensitive to low source temperature, assuming efficient atomization?
Collimated atomic beam, saturated absorption and two-photon spectroscopy are three methods of Doppler-free laser spectroscopy. (i)...
Collimated atomic beam, saturated absorption and two-photon spectroscopy are three methods of Doppler-free laser spectroscopy. (i) In each case summarize briefly the principle of how the Doppler width is reduced or eliminated , (ii) Which method (methods) collects (collect) signal from all atoms illuminated by laser beams? (iii) In collimated beam spectroscopy the probe laser beam with the wavelength of 0.5 μm intersects the atomic beam (velocity of 300 m/s) at the angle of 70o (the angle between the wave...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT