Classic flame photometric experiment, Chemistry

Assignment Help:

Classic flame photometric experiment:

In a classic flame photometric experiment, a solution of the analyte is aspirated within the burner and dispersed into the flame as a fine spray in a process known as nebulisation. A number of procedures occur in the flame to produce the gaseous atoms and ions in the excited state. An intensity of the emitted radiation is then measured for the qualitative and quantitative determination of the analyte.

A flame could be described as a steady state gas phase reaction that takes place along with emission of light. These are produced through burning a mixture of fuel and air or oxidant within a burner. The maximum operating temperature of the flame is determined through the identity of fuel and oxidant while the exact temperature is fixed through the ratio of fuel and oxidant. Either pre-mix (or laminar) or unpremix (or turbulent) flames are used within flame photometry. Inside the former, a fuel and oxidant are well mixed before combustion, while in later these are mixed in the flame itself.

The instrument used in flame photometry is known as flame photometer; it consists of a flame atomiser, monochromator, flame burner, detector, amplifier and readout device. The simple inexpensive flame photometer employing glass filters is enough for routine analysis of alkali and alkaline earth metals by more expensive sophisticated instrument using monochromator might be needed for analysis of other elements.


Related Discussions:- Classic flame photometric experiment

Volumetric method for acids and bases - chemical methods, Volumetric method...

Volumetric method for acids and bases - chemical methods Molecular mass of an acid can be ascertained by dissolving a known mass of the acid in water and titrating the solution

Idoform, preparation of idoform

preparation of idoform

Special topics in analytical chem, Q1. a). Using diagram, explain how fluor...

Q1. a). Using diagram, explain how fluorescence detector optical bench works (5 marks) (b). Explain the applications of mass spectrometric detector (LC/MS) in HPLC (5 mar

Uses of benzoic acid - carboxylic acids, Uses of Benzoic Acid - carboxylic ...

Uses of Benzoic Acid - carboxylic acids (i) Benzoic acid is used in medicine in the form of its salts particularly as urinary antiseptic. (ii) Benzoic acid is used as sodium

Regeneration of true exhausted zeolite bed, Q.   How is true exhausted Zeol...

Q.   How is true exhausted Zeolite bed regenerated? Give the merits and demerits of Zeolite process.                                                                    OR

Write and balance , Write and balance the equation for the burning of an un...

Write and balance the equation for the burning of an unknown hydrocarbon, C4H9 in air.

Silver salt method for acids - chemical methods, Silver salt method for aci...

Silver salt method for acids - Chemical methods It is based upon the fact that silver salt of an organic acid on heating provides residue of metallic silver.

Chain growth or addition polymerisation, Chain growth or addition polymeris...

Chain growth or addition polymerisation It includes a series of reaction each of which consumes a reactive particle and generates another similar one.  The reactive molecule m

Classification of polymers - natural polymer, Classification of polymers - ...

Classification of polymers - Natural polymer The polymers acquired from nature (plants and animals) are known as natural polymers. These types of polymers are extremely essenti

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