Nebulisation techniques, Chemistry

Assignment Help:

Nebulisation techniques:

The accuracy, precision and detection limits of flame AAS depend on how the analyte sample is introduced into the atomiser. We need to transfer a reproducible and representative portion of a sample into an atomiser which depends on the physical and chemical state of the analyte and the sample matrix. The sample introduction is achieved with the help of a nebuliser. The generally used nebulisation techniques are ultrasonic nebulisation, pneumatic nebulisation, electrothermal vaporisation and hydride generation.

Atomic absorption spectrophotometry (AAS) is now a routinely and widely employed technique for trace and ultratrace analysis of complex matrices of geological, biological, glass,  environmental, industrial, cement, marine sediment, pharmaceutical, engine oil or any other kind of samples. An atomic absorption techniques using flame are rapid and precise and are applicable to about 67 elements. The electrothermal methods of analysis instaed are slower and less precise; thus, these are more sensitive and require much smaller samples


Related Discussions:- Nebulisation techniques

Diagonal relationship, What is the diagonal relationship between Beryllium ...

What is the diagonal relationship between Beryllium and Aluminium

Equivalent weight, how to calculate equivalent weight of LMnO4

how to calculate equivalent weight of LMnO4

Radioactivity, what is the principal of radiometric titration

what is the principal of radiometric titration

What do you understand by canning, Q. What do you understand by Canning? ...

Q. What do you understand by Canning? Canning involves the application of heat that is high enough to destroy all pathogenic microorganisms and their spores present along with

Methods yielding mixture of amines - hofmann method, Methods yielding mixtu...

Methods yielding mixture of amines - Hofmann's method Hofmann's method: The mixture of amines (1°, 2° and 3°) is made by the alkylation of ammonia along with alkyl halides.

Methods of characterization, Introduction Methods of characterization a...

Introduction Methods of characterization aim to calculate the products of a reaction. The level of detail expected depends on the circumstances, and calculates the range of met

To find acidic and basic radicals in different chocolates, theory of the ac...

theory of the acidic and basic radicals in different chocolates

Find out the temperature of ellingham diagrams, Q. Find out the temperature...

Q. Find out the temperature of Ellingham diagrams? Ellingham diagrams are very useful for finding out the temperature at which appreciable reaction occurs. The lower the ΔG 0

Electroanalytical technique, Electroanalytical technique: An electroan...

Electroanalytical technique: An electroanalytical technique is based on the measurement of one or more electrical quantities and their magnitudes could be correlated with the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd