Hydride generation method, Chemistry

Hydride generation method:

The hydride generation method of sample enhances the detection limits by a factor of 10 to 100 by converting the analyte element into a volatile hydride. Some of the elements for which this method can be used are As, Sb, Sn, Se, Bi and Pb.

The matrix modifier is a commonly acceptable method used to reduce background effects in GFAAS. In that method, a reagent is added to the sample that acts by modifying the sample matrix and thereby reduces the problem of background. In some cases the modifier may modify the analyte also.

The sensitivity of electrothermal AAS is much higher as compared to the flame AAS because in the furnace a much higher concentration of atomic vapour can be maintained as compared with flames. Additionally, in this method, the dilution of the analyte by the solvent is avoided as the solvent is evaporated before the atomisation step.

Posted Date: 1/10/2013 3:04:33 AM | Location : United States







Related Discussions:- Hydride generation method, Assignment Help, Ask Question on Hydride generation method, Get Answer, Expert's Help, Hydride generation method Discussions

Write discussion on Hydride generation method
Your posts are moderated
Related Questions

schematic diagram for osvw

the measured dipole moment of-para nitroaniline (6.2D) is larger than the value calculating using empirical group moment (5.2D)

explain acidic character of acetalin

Ethanol or Ethyl alcohol This is obtained by the fermentation of Molasses in the presence of enzymes as catalyst. C12H22O11+H2O→C6H12O6 + C6H12O6        (sugar)

what is thermogavimatic analysis and their instumental

What periodic elements are found in computers

Which of the following represents the electronic configuration of an element with atomic number 17: (1) 1s 2, 2s 2 , 2p 6 , 3s 1, 3p 6                (2) 1s 2 , 2s 2 , 2p

calculate the concentration of the Naoh solution you have prepared on the basis of the measured mass of the pellets used in the solution volume

The energy of an electron in the first Bohr orbit of H atom is-13.6eV  . The possible energy value(s) of the excited state(s) for electrons in Bohr orbits to hydrogen is(are):