Role of organic solvents in atomisation, Chemistry

Role of organic solvents in atomisation:

The organic solvents of low molar mass like alcohols, ethers, and ketones enhance the absorption peaks by increasing rate of aspiration, nebulisation efficiency, formation of finer droplets, and more efficient evapouration or combustion of the solvent. Therefore, their presence makes the sample solution more dilute and the advantage is lost. Thus, the analyte is extracted into a suitable solvent and the organic phase is directly aspirated into the flame. This method increases the atomisation efficiency and eliminates a number of chemical interferences.

A transient signal that lasts for a few seconds is produced in GFAAS whereas in flame AAS a steady absorption signal is obtained.

Posted Date: 1/10/2013 3:05:18 AM | Location : United States







Related Discussions:- Role of organic solvents in atomisation, Assignment Help, Ask Question on Role of organic solvents in atomisation, Get Answer, Expert's Help, Role of organic solvents in atomisation Discussions

Write discussion on Role of organic solvents in atomisation
Your posts are moderated
Related Questions
Effect of substituent on acidic nature (a) An electron withdrawing substituent that is - I effect stabilizes the anion by dispersing the negative charge and hence increases the

the density of 2 molal aqueous solution of NaOH is 1.10g/L. Calculate the molarity of the solution.

what is infiltration

Number of unpaired electrons in inert gas is: (1) Zero         (2) 8        (3) 4                (4) 18 Ans: Zero

Q. Explain Ellingham Diagrams? Ellingham studied the variation of standard free energy change for the formation of a number of compounds, e.g., oxides, sulphides and chlorides,

what is the unabbreviated electron configuration of lanthanum

Comment on the validity of the following statements, giving reasons: (a) Thermodynamically an exothermic reaction is sometimes not spontaneous. (b) The entropy of steam is mo


PHOTO CHEMICAL COMBINATION OF HYDROGEN&IODINE