Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Atomic spectroscopy:
Atomic spectroscopy is the oldest instrumental method of elemental analysis. The origin of these methods dates back to the times of Bunsen and Kirchhoff in the mid- 19th century whereas they showed in which the optical radiation emitted from flames is features of the elements present in the flame and the intensities of the emitted radiation were dependent on the amount of elemental species present.
The atomic spectroscopic techniques are based on the transitions amongst the quantised electronic energy stages caused through the absorption of radiation through the atoms within vapour phase or by the emission of radiation by the excited atoms. Since the transitions manifest in terms of absorption, emission or fluorescence emission. Therefore, we have atomic emission, absorption and fluorescence spectroscopies. The kind of atomic spectroscopic method is determined both through the method of atomisation as well as the nature of the analyte radiation interaction. In compare to the molecular spectra, the atomic spectra consist of a number of sharp absorption lines, features of the atomic species. The signals within an atomic spectrum are also characterized in terms of the position, intensity and the band width.
Flame photometry is a technique for the determination of elements that could be simply excited and is based upon the measurement of intensity of radiation emitted, within the visible region, while a metal is introduced into a flame. A wavelength of the emitted radiation, tells us what the element is or the intensity of the radiation tells us how much of the element is present. A sensitivity of the flame photometric techniques depends on the number of excited atoms that in turn depends on the flame temperature. A flame temperature is a function of the kind of fuel and oxidant used.
Geiger Marsden experiment The Rutherford experiment (also known as the Gold foil experiment or the Geiger-Marsden experiment) was an experiment to probe the structure of the at
Chemical in cosmetics The phrase cosmetics are taken from the Greek word Kosmetikos. The meaning of this is decorating. Beautifying or enhancing complexion of skin. In middle a
Nomenclature of organic compounds - Trivial System The meaning of Nomenclature is assignment of names to organic compounds. There are two major systems of nomenclature of org
Solubility of urea
An atom with atomic number 20 is most likely to combine chemically with the atom whose atomic number is: (1) 11 (2) 14 (3) 16 (4) 10 An
pprocessof j ``
how to know which salt causes scale formation and which one for sludge formation
Why lead and mercury are in 1st and 2nd group of basic radicals
i am not able to understand difference between emphasising and reflexive pronoun
primary and secondary cells
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd