Write a Note on Flame Ionization Detector.| Chromatography | Analytical Chemistry

Описание: The principle of flame ionization detector (FID) is the ionization of molecules of the effluent gas in a hydrogen flame which results in a current increase.
The detector has inlets for hydrogen which is the carrier gas, air or oxygen to burn the hydrogen and the effluent gas from the chromatograph. Hydrogen emerges through a hollow needle and is burnt as it emerges giving a colorless flame. The effluent gas is mixed with hydrogen and the mixture burnt in an excess of air.
The thermal energy of the flame is sufficient to cause ionization of the molecules in the effluent gas. A potential is applied between two electrodes. The increase in current between the two electrodes when ions are formed in the flame is amplified and recorded. The ion current is approximately proportional to the number of carbon atoms which enter the flame.
The FID is relatively simple and highly sensitive but destroys the sample. It is also insensitive to most inorganic compounds, water vapor, and air.

Analytical Reasoning
   • Solve Problems Related To Ages With These ...  

English Grammar
   • Making Sense With Tense #1 - English Grammar  

Interview Skills
   • Questions You May Be Asked During an Inter...  

Managerial Economics
   • MCQ #1 of Managerial Economics  

Royalty Free Stock Footage
   • Flowers - Royalty free footage  

Chemical Thermodynamics - Physical Chemistry
   • State and Explain first law of thermodynam...  

Ionic Equilibria - Physical Chemistry
   • Derive expression for Ostwald’s Dilution law.  

Electrochemistry - Physical Chemistry
   • What are different types of Reversible Ele...  

Solid State - Physical Chemistry
   • Explain the following terms | Solid State ...  

Gaseous State - Physical Chemistry
   • Postulates of Kinetic Molecular Theory of ...  

Colloidal States - Physical Chemistry
   • What is Colloidal Solution? | Colloidal St...  

Stereochemistry - Organic Chemistry
   • Explain Configuration and Conformation | S...  

Nanomaterials - Engineering Chemistry
   • Compare top down with bottom up Processes ...  

Water and Its Treatment - Engineering Chemistry
   • Explain why hard water gives out a curd li...  

Electrochemistry - Engineering Chemistry
   • Distinguish between metallic and electroly...  

Environmental Studies
   • MCQ on Environmental Studies Part 8  

Optics - Applied Physics
   • What are cartesian sign conventions for sp...  

For Details Visit
http://cepekmedia.co.nf
http://cepek.hol.es/
http://edmerls.66Ghz.com/
http://edmerls.tk/