Add time:07/12/2019 Source:sciencedirect.com
Chlorinated carboxylic acids of fatty acid character have been shown to account for up to 90% of the extractable, organically bound chlorine (EOCl) in fish. To facilitate the detection of chlorinated fatty acid methyl esters (FAMEs) released from fish lipids, an enrichment was performed by removing the polyunsaturated FAMEs and saturated, straightchain FAMEs through their complexation with silver ions and urea, respectively. The resulting about 30-fold increase in the concentration of chlorinated FAMEs allowed for their analysis, by gas chromatography (GC) with halogen-selective electrolytic conductivity detection, in lipids containing only 30 ppm (m/m) of EOCl. Following additional purification by thin-layer chromatography, methyl esters of dichlorotetradecanoic, dichlorohexadecanoic and dichlorooctadecanoic acids were indicated by GC-ammonia positive ion chemical ionisation mass spectrometry in a fish sample containing 1200 ppm (m/m) of EOCl.
We also recommend Trading Suppliers and Manufacturers of 2,2-DICHLOROTETRADECANOIC ACID (cas 93347-74-1). Pls Click Website Link as below: cas 93347-74-1 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View