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Disadvantages & Advantages of an GC

Disadvantages & Advantages of an GC.

Gas chromatography (GC) is an analytical method which is used for the separation of an volatile substance from a give mixture of compounds which are very difficult to separate and analyse.

This type of chromatography separates the molecules based on the volatility of a substance.

The substance with more volatility will separate out quickly while the substance with less volatility will elute out slowly.

Advantages 

This method has a  high resolution power compared to other methods.

This method has high sensitivity when used with thermal detectors.

This technique gives relatively good accuracy and precision.

Separation and analysis of sample very quickly.

Sample with less quantity is also separated. 

Disadvantages

Only volatile samples or the sample which can be made volatile are separated by this method.

During injection of the gaseous sample  proper attention is required.

The sample of gas which is about to inject must be thermally stable so that it does not get degraded when heated.

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The List of Abbreviations used in Pharmaceutical Industry

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SEO Spam

Short Definition of the given term SEO Spam is defined below. Let us find  out meaning and brief explanation of the given term.

In SEO (Search engine optimiztion) methods, some people follows SEO manipulation methods which is used to increase the ranking of the target webpage in the search results by violating terms and services. This type of techniques is known as SEO spamming.

Black hat SEO, Cloaking, Duplicate Content are some of the SEO spamming techniques. While White hat SEO method is good to increase rank in organic results.

FULL FORM OF SEM,SERP

Search engine marketing (SEM) is use to promote websites and blog.

(Other full form are given below).

It is  for the purpose of increasing visibiiity of pages in search engine result page also known as SERP. 

Search Engine marketing.

 SERP :: Strategic Education Research Partnership. 

SERP: Supplemental Executive Retirement Plan. 

Full Form of DFM,MBBS

Diploma in Forensic Medicine (DFM) is a course offered by many universities in various countries.(Other full form and meaning of DFM are also available) So check it out other articles related to the given term.

MBBS :: Bachelor of Medicine, Bachelor of surgery(Degree awarded by medical  school).

How is Coal Formed ?

Since the 13th century coal is derived from the Old English term col, which means "mineral of fossilized carbon".

Coal consists of high content of carbon and other elements like, sulfur, hydrogen, oxygen, and nitrogen.

Coal is a naturally black sedimentary rock occurring in rock strata in layers or veins called coal beds or coal seams.

Anthracite coal is the solider form of coal, can be considered as metamorphic rock because of later exposure to high temperature and pressure.