The purpose of an ionisation suppressant in atomic absorption spectroscopy is

Solutions

Expert Solution

Atomic absorption spectroscopy is the technique used to identify the atom using absorption of radiation by atom in gas phase. In atomic absorption spectroscopy, population of ground state element may change due to ionization of atoms which affect the intensity of signal. This occur in hot flame, the energy of flame excite the ground state atom into ionic state by loss of electron resulting in depletion of ground state atom and the element does not absorb correct wavelength. Thus ionization suppressant is added which is easily ionized and thereby creating large number of electrons in flame which suppress the ionization of atom and thus we get correct wavelength and intensity of signal.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

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.

Why do we use atomic absorption spectroscopy?

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 /...

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.

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...

The amount of sodium can be determined in an apple using atomic absorption spectroscopy. 0.4326 g...

The amount of sodium can be determined in an apple using atomic absorption spectroscopy. 0.4326 g of apple was dried, heated at 700oC and chemically treated with a concentrated HCl solution and diluted to 250 mL. 10 mL aliquots were transferred to 50 mL flasks. Each was treated with a standard solution of Na+ at 25.0 ppm and analyzed using flame AAS. Construct a standard addition graph and calculate the weight percentage of Na in the apple. Na+ standard (mL)...

a) Horvat and co-workers used atomic absorption spectroscopy to determine the concentration of Hg in coal...

a) Horvat and co-workers used atomic absorption spectroscopy to determine the concentration of Hg in coal fly ash.22 Of particular interest to the authors was developing an appropriate procedure for digesting samples and releasing the Hg for analysis. As part of their study they tested several reagents for digesting samples. Their results using HNO3 and using a 1 + 3 mixture of HNO3 and HCl are shown here. All concentrations are given as ppb Hg sample. HNO3: 161 165 160...

Determination of the Calcium Content of Beer and Water Using Atomic Absorption Spectroscopy 1. Assuming the...

Determination of the Calcium Content of Beer and Water Using Atomic Absorption Spectroscopy 1. Assuming the wort is saturated with Ca3(PO4)2(s), what would happen to the concentration of Ca2+ions in the wort if: (i) More HPO42-ions were added? PO43- Concentration will increase (ii) Ca3(PO4)2 (s) was added? (iii) The pH of the solution was decreased by addition of a suitable acid? 2. Why is LaCl3 utilized? What changes would be needed in set up of the AAS if LaCl3 was...

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.

Subjects