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Emission spectroscopic analysis techniques

5 years ago in Data Analysis By Raghu

Content Analysis

All Answers (4 Answers In All)

By Shraddha Answered 5 years ago

Flame is commonly used to analyse alloys. An alloy is dissolved in an acid and the obtained solution will be injected into a flame. This flame can be either an induction heated argon flame or an acetylene-oxygen flame. Plasma produced in flame emits spectrum of light consisting of features depending on the chemical composition.

By Keerthi Gupta Answered 5 years ago

The most emission spectroscopic analysis technique is DC arc. Here high DC-voltage is applied between two electrodes which then generates a discharge in gases because of ionization of atoms by electric field. This technique can also be used to study the metallic chemical composition. If sample is conductive it can be utilised as an electrode for excitation of DC arc.

By Hema Answered 5 years ago

According to me the most popular technique is ac spark process. Here the LC-circuit will be charged with a few thousand volts. However this voltage won’t be sufficient to initialise the spark. This LC circuit is capable of producing high currents for short time periods and the temperature in the spark reaches upto 10000K. The high temperature excites electrons to higher energy levels.

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