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

Determine the overall efficiency of each plant, Three power plants have bee...

Three power plants have been suggested that operate at these efficiencies. Plant Power Plant Efficiency (%) I 81

Nitroalkanes, Physical properties of nitroalkanes

Physical properties of nitroalkanes

Photochemistry, what is importance of photochemical quantum yield

what is importance of photochemical quantum yield

Independent and dependent variables, what is the difference between both in...

what is the difference between both independent and dependent variables?

Halides, why pcl3 and s2cl2 are less polar then sicl4

why pcl3 and s2cl2 are less polar then sicl4

Illustrate the descriptive analysis of sensory method, Q. Illustrate the de...

Q. Illustrate the descriptive analysis of Sensory method? Sensory methods may be used to quantify the perceived intensities of the sensory attributes of a product. The quantif

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