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

Atomic Mass, why C-12 is taken as standard for atomic mass?

why C-12 is taken as standard for atomic mass?

DTA, interpretation ande of errors in differential thermal analysis

interpretation ande of errors in differential thermal analysis

EQUIVALENT WEIGHT, WHAT IS THE EQUIVALENT WEIGHT OF Mg(HCO3)2

WHAT IS THE EQUIVALENT WEIGHT OF Mg(HCO3)2

Thermodynamics and first law of thermodynamics, Thermodynamics Thermody...

Thermodynamics Thermodynamics is a macroscopic science and its most fundamental level is the study of two physical energy, entropy and quantities. Energy may be regarded as the

Calculate the specific heat of strange metal, Q. Calculate the specific hea...

Q. Calculate the specific heat of strange metal? Ans. You found a 50.0 sample of an unknown metal while you were scuba diving near the remains of anancient ship wreck. To test

What are the objectives of heat treatment of metals, What are the objective...

What are the objectives of heat treatment of metals? Objectives of heat treatment- Cause relief of internal stresses developed during cold working, welding, forging, cas

Illustrate the salient aspects of ionic and metallic bonded, Illustrate the...

Illustrate the salient aspects of ionic and metallic bonded crystals. Properties Ionic Metallic Bonding Force The

Functional groups - iupac system of naming organic compounds, Functional gr...

Functional groups - IUPAC System of Naming Organic Compounds If a compound involves much more than one functional group, as compared to one of the functional group is considere

Electrons present in all the p-orbitals, The total number of electrons pres...

The total number of electrons present in all the p-orbitals of bromine are: (1) Five          (2) Eighteen         (3) Seventeen           (4) Thirty five Ans: Seve

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