Youtor
Explain the Principle of Atomic Absorption Spectrometer AAS
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=5fvWhCk7x6U
When the salt soln. is put into the flame first solvent is vaporized the tiny particles of solute molecules are obtained which on further heating in the flame are converted into gaseous molecules the molecules dissociate into atoms. Some of the atoms are exited unexcited atoms will absorb their characteristic radiation. A.A.S. is concerned with this part of light (radiations) which are absorbed by the unexcited atoms present in the ground state. This absorption depends on no of unexcited atoms present and hence, is independent of the flame temp. It is possible, if the course of radiations is made-up of the same element which is going to be analyzed. For e.g. if the sample solution of NaCl is to be analyzed, source of radiations must be Na-Vapors. • Where I0 = Intensity of radiations incident. • It = Intensity of radiations transmitted. • K = Characteristics Constant, • L = Path length of flame in cm. • No = No of atoms in the ground state. • The absorption of radiations follows the Beer-Lamberts Law. As each element absorb the radiations of its own characteristics therefore separate source of radiations is required for each element. • Analytical Reasoning • • Solve Problems Related To Ages With T... • English Grammar • • Making Sense With Tense #1 - English ... • Interview Skills • • Questions You May Be Asked During an ... • Managerial Economics • • MCQ #1 of Managerial Economics • Royalty Free Stock Footage • • Flowers - Royalty free footage • Chemical Thermodynamics - Physical Chemistry • • State and Explain first law of thermo... • Ionic Equilibria - Physical Chemistry • • Derive expression for Ostwald’s Dilut... • Electrochemistry - Physical Chemistry • • What are different types of Reversibl... • Solid State - Physical Chemistry • • Explain the following terms | Solid S... • Gaseous State - Physical Chemistry • • Postulates of Kinetic Molecular Theor... • Colloidal States - Physical Chemistry • • What is Colloidal Solution? | Colloid... • Stereochemistry - Organic Chemistry • • Explain Configuration and Conformatio... • Nanomaterials - Engineering Chemistry • • Compare top down with bottom up Proce... • Water and Its Treatment - Engineering Chemistry • • Explain why hard water gives out a cu... • Electrochemistry - Engineering Chemistry • • Distinguish between metallic and elec... • Environmental Studies • • MCQ on Environmental Studies Part 8 • Optics - Applied Physics • • What are cartesian sign conventions f... • For Details Visit • http://cepekmedia.co.nf • http://cepek.hol.es/ • http://edmerls.66Ghz.com/ • http://edmerls.tk/
#############################
