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

The number of unpaired electrons in an o2 molecule, The number of unpaired...

The number of unpaired electrons in an O 2   molecule is: (1) 0        (2) 1         (3) 2      (4) 3 Ans: 2

Noble gas, please help me to do assignment about noble gas.

please help me to do assignment about noble gas.

Stoichiometry, how many mole ratios can be obtained from the following equa...

how many mole ratios can be obtained from the following equation? Na2S+Cd(NO3)2-2NaNo3+CdS

Types of power sources - atomic emission spectrometry, Types of power sourc...

Types of power sources - atomic emission spectrometry: Three types of power sources have been employed in argon plasma spectroscopy accordingly; there are three different kind

Classification of polymers, Q.   Discuss the classification of polymers. ...

Q.   Discuss the classification of polymers.                   OR How are polymers classified? Explain with suitable examples. Ans. Polymers are classified on th

Characterization of wastewater, a) Describe why not all of the organic matt...

a) Describe why not all of the organic matter in wastewater is converted to carbon dioxide and water in biological treatment. b) What is the importance of the BOD in the charact

Which of the following set of quantum number is not possible, Which of the ...

Which of the following set of quantum number is not possible:              n             l               m1        m2 (a)         3              2              1

Lowest sum rule - iupac system of nomenclature, Lowest sum rule - iupac sys...

Lowest sum rule - iupac system of nomenclature previously it may be noted that, the numbering of the parent chain consisting of two or more substituents was done in such a way

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