PHD Discussions Logo

Ask, Learn and Accelerate in your PhD Research

Question Icon Post Your Answer

Question Icon

6 years ago in Data Analysis By Raghu

Emission spectroscopic analysis techniques

All Answers (4 Answers In All)

By Pooja Answered 6 years ago

 in atomic emission spectroscopy you can use flame to analyse alloys.
 

By Shraddha Answered 6 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 6 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 6 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.

Your Answer