scholarly journals Characteristics of Petroleum Fuels and Determination of (possible) Adulterants in Petrol/Gasoline by using Gas Chromatography (Petrocol Column)

2005 ◽  
Vol 4 (2) ◽  
pp. 32-48 ◽  
Author(s):  
B. Edison
Keyword(s):  
Gas Chromatography ◽  
Motor Gasoline ◽  
Petroleum Fuels

This study explains a few aspects about the characteristics of the fuels like Motor gasoline, diesel and kerosene. Adulteration in the motor gasoline has been analyzed and methods to find the adulterants is explained here. Adulteration in the motor gasoline can be find out using "Gas Chromatography". This study also explains the role of the solvents as the adulterants.

scholarly journals Determination of Mammalian Lignans in Biological Samples by Modified Gas Chromatography/Mass Spectrometry

2007 ◽  
Vol 90 (3) ◽  
pp. 641-646 ◽  
Author(s):  
Ajay Bommareddy ◽  
Bhanu L Arasada ◽  
Duane P Mathees ◽  
Chandradhar Dwivedi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Gas Chromatography Mass Spectrometry ◽  
Serum Samples ◽  
Selected Ion Monitoring ◽  
Beneficial Effects ◽  
Chromatography Mass Spectrometry ◽  
Flaxseed Meal

Abstract Lignans in flaxseed have been part of the human diet for centuries. In 1955, the isolation and structure of the lignan derivative secoisolariciresinol diglucoside (SDG) was reported. The biological role of SDG and mammalian lignan metabolites enterodiol and enterolactone was initially reported 20 years later. Experimental evidences showed the beneficial effects of lignans on breast, colon, and thyroid cancer. A modified gas chromatography/mass spectrometry (GC/MS) assay was developed for lignans in serum and colon samples of rats fed flaxseed meal. The method developed for the analysis of metabolites involves extraction and derivatization of samples and quantitative analysis by selected ion monitoring using GC/MS. The levels of lignan metabolites enterodiol and enterolactone were determined to be 0.013 and 0.23 M in serum samples and 0.008 and 1.63 M in colon samples.

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