Nobody downloaded yet

Gas Chromatography - Term Paper Example

Comments (0) Cite this document
Summary to term paper on topic "Gas Chromatography"
Chromatography is a Greek word which originated from the word chroma standing for the word color. It is a scientific technique that refers to separating mixtures. It comprises of two main different phases; mobile and the stationary phase. Gas chromatography is identified by the fact that the carrier gas is formed in the mobile phase…
Download full paper
Gas Chromatography
Read TextPreview

Extract of term paper "Gas Chromatography"

Download file "Gas Chromatography" to see previous pages... It is also referred to as gas separator or aerograph. Gas chromatography is different from other forms of chromatography because the solutions are always in gas state as they travel through the column. Retention time occurs when different compounds separate in the column at different times. The gases have different eluting times due to the reactions between them and the column.
Let us write or edit the essay on your topic "Gas Chromatography" with a personal 20% discount.. Try it now
The gases are now compared by their different retention times which give the gas chromatography the power to analyze the gases (Eli, pp. 217-220).
Chromatography originated in 1903 by Mikhail Semenovich Tswett who was a Russian botanical scientist. He opened the way to gas chromatography. He used adsorbents like ethanol and calcium carbonate to elute carotenoids and chlorophylls this saw the use of the column chromatography. The foundation of the gas chromatography was later laid by the Nobel Prize winner John Porter Martin. In 1941, he used the liquid to liquid method and in 1944, paper chromatography which brought about gas chromatography. It later led to the formation of liquid-gas chromatography in 1950. This has led to the modern gas chromatography technique which is being used today as an important analytical technique in chemistry (Colin, pp. 161-165).
The description of chemistry, physics and biology behind the gas chromatography technique can be explained ...
This means it uses the inert gases like carbon dioxide, helium, nitrogen and argon. For one to choose the carrier gas, he or she needs to identify the type of detector to be used. It has a molecular sieve that sieves out impurities and water (Casimir, pp. 139-142).
The injector port is a column in which the samples are passed in the instrument. The samples are not supposed to be very large and they are to be introduced in the column as in the state of vapor. Large sample injections can cause the band to broaden thus lose resolution. The most accurate and common method used is that of injecting samples via a rubber septum using the micro syringe. The injector is characterized by a heated chamber which has a glass liner where the sample is passed through the septum. When the injector is using the splitter mode, the carrier gas normally enters the chamber and leaves it by three outlets. Then the sample becomes vapor which leads to the formation of the mixture of carrier gas, vaporized solutes and solvents. A small amount of the mixture goes to the column leaving most of it to exit via the split outlets. Components can not enter the column due to the septum purge outlet in the instrument (Sawhney, pp.211-215).
The column is divided in to two sections; capillary and packed. The capillary is further divided in to two whereby there is the support or wall coated open tubular (WCOT, SCOT). The wall coated has a liquid coated stationary phase while the support coated one has thin layer of a supportive material that absorbs the stationary phase. The most efficient type of capillary is the wall-coated capillary. The fused silica open tubular column is considered to be the best as it is a type of the WCOT. ...Download file "Gas Chromatography" to see next pagesRead More
Cite this document "Gas Chromatography"
  • APA
  • MLA
(“Gas Chromatography Term Paper Example | Topics and Well Written Essays - 1750 words”, n.d.)
Gas Chromatography Term Paper Example | Topics and Well Written Essays - 1750 words. Retrieved from
(Gas Chromatography Term Paper Example | Topics and Well Written Essays - 1750 Words)
Gas Chromatography Term Paper Example | Topics and Well Written Essays - 1750 Words.
“Gas Chromatography Term Paper Example | Topics and Well Written Essays - 1750 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Modern techniques and methods of management
First, according to mark Henderson’s article, he argues that the organizations that creates new performance measurements do rely on measures of oriented results. Further the writer puts it that, a measurement system should have the ability to encompass a notion of both process measures as well as the result (Armstrong, 2001.p.123).
16 Pages(4000 words)Term Paper
Lose Control in Gas and Oil Industry
Early European settlers gave little notice to oil seepages in western Pennsylvania and New York, up until the mid-1850’s. That is when scientists discovered that they could procure kerosene from the crude oil. For the most part, wells were initially hand dug, with salt producers of the time learning to drill via cable tools.
10 Pages(2500 words)Term Paper
Enzyme-linked immunosorbent assay
One of the major environmental problems today includes environmental toxicants. The environmental toxicants may be in the form of pesticides, solvents or heavy metals. These environmental toxicants are usually released as chemical waste into the atmosphere, water bodies and soil.
8 Pages(2000 words)Term Paper
Separation Strategies for Isoprenoids from Aqueous Solutions
These techniques include conventional ones such as the distillation techniques, chromatographic techniques, crystallization and solvent extraction, and an emerging separation technique that is based on bioaccumulation of isoprenoids by metabolically engineered microorganisms.
10 Pages(2500 words)Term Paper
Drug and Alcohol Testing
. . . . . . . . . . . . . . . . . . . . . . 3 Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Literature Review . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Tests for Alcohol . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Pages(2000 words)Term Paper
This Way for the Gas, Ladies and Gentlemen
His parents were deported to soviet Ukraine and Siberia and he brought up at his aunt place. The family united again after Nazis issue. He published his poetry and stories and got arrested at age of twenty; he suffered from starvation, cruelty,
4 Pages(1000 words)Term Paper
Distillation- Gas Chromatography Investigations
This energy is utilized by the molecules to change phase, that is, from the liquid phase into the gas phase. The temperature at which the liquid changes into vapor, in which case, the vapor pressure of a liquid at this temperature equals to the atmospheric pressure, and it is referred to as the boiling point.
4 Pages(1000 words)Lab Report
Fast protein liquid chromatography (FPLC)
It was further developed and improved by Archer John Porter Martin and Richard Laurence Millington Synge in 1940s and 1950s period. They described the plate theory of chromatography. It states that, in the chromatography system, the mobile and stationary phases exist in equilibrium.
7 Pages(1750 words)Term Paper
Review on a research topic related to the use of stable and /or radio isotopes in forensic science
In relation to the study of forensic science, this report will purposely conduct a systematic review which aims to discuss the advantages of using stable isotopes as compared to the use of radioactive isotopes. Table of Content Abstract ……………………………………………………………………………………… 2 Table of Content …………………………………………………………………………….
16 Pages(4000 words)Term Paper
CSR strategy in the oil and gas industry
Crude oil drilling in the land wells was the main source of petroleum before companies shifted their attention to explore the sea bed, and set up oil well structures in the open sea. This process usually involves geologists to map and confirm the
5 Pages(1250 words)Term Paper
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Term Paper on topic Gas Chromatography for FREE!
Contact us:
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us