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

Chemical properties of cycloalkanes, Chemical properties of Cycloalkanes ...

Chemical properties of Cycloalkanes Cycloalkanes behave both such as alkenes and alkanes in their chemical properties. All cycloalkanes go through substitution reaction with ha

Unit cell, how can i make best assignment on unit cell topic?

how can i make best assignment on unit cell topic?

Radioactivity, what is the principal of radiometric titration

what is the principal of radiometric titration

Mention the soya bean products, Soya bean products Soya bean and its f...

Soya bean products Soya bean and its flours are used in the preparation of a variety of fermented and non-fermented products in Asian countries. However in India, food use of

Eqivalents, how do you calculate equivalents?

how do you calculate equivalents?

Type of bonding exists, Which type of bonding exists in  Li 2 o   and CaF 2...

Which type of bonding exists in  Li 2 o   and CaF 2    respectively : (1) Ionic, ionic                                   (2) Ionic, covalent    (3) Covalent, ionic

Pyroligneous acid - aldehydes and ketones, Pyroligneous acid  - Aldehydes ...

Pyroligneous acid  - Aldehydes and Ketones Pyroligneous acid consisting of acetic acid, acetone and methyl alcohol that is distilled in copper vessel and the vapours are passed

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