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Studies from J.Z. Sun and Co-Authors Have Provided New Information about Carboxylic Acids (Determination of phthalic acid esters in Chinese white...

August 15, 2014



Studies from J.Z. Sun and Co-Authors Have Provided New Information about Carboxylic Acids (Determination of phthalic acid esters in Chinese white spirit using dispersive liquid-liquid microextraction coupled with sweeping ...)

By a News Reporter-Staff News Editor at Science Letter -- Data detailed on Carboxylic Acids have been presented. According to news reporting originating from Yangling, People's Republic of China, by NewsRx correspondents, research stated, "A simple method that consumes low organic solvent is proposed for the analysis of phthalic acid esters in Chinese white spirit using dispersive liquid-liquid microextraction coupled with sweeping-micellar electrokinetic chromatography. Tetrachloromethane and white-spirit-containing ethanol were used as the extraction and dispersing solvents, respectively."

Our news editors obtained a quote from the research, "The electrophoresis separation buffer was composed of 5 mM beta-cyclodextrin, 50 mM sodium dodecyl sulfate and 25 mM borate buffer (pH 9.2) with 9% acetonitrile, enabling the baseline resolution of the analytes within 13 min. Under the optimum conditions, satisfactory linearities (5-1000 ng/mL, r>= 0.9909), good reproducibility (RSD

According to the news editors, the research concluded: "The proposed method was successfully applied to 22 Chinese white spirits, and the content of dibutyl phthalate in 55% of the samples exceeded the Specific Migration Limit of 0.3 mg/kg established by the domestic and international regulations."

For more information on this research see: Determination of phthalic acid esters in Chinese white spirit using dispersive liquid-liquid microextraction coupled with sweeping beta-cyclodextrin-modified micellar electrokinetic chromatography. Journal of Separation Science, 2014;37(13):1679-1686. Journal of Separation Science can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell - www.wiley.com/; Journal of Separation Science - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1615-9314)

The news editors report that additional information may be obtained by contacting J.Z. Sun, State Key Lab Crop Stress Biol Arid Areas, Yangling, People's Republic of China. Additional authors for this research include H. He and S.H. Liu (see also Carboxylic Acids).

Keywords for this news article include: Asia, Esters, Yangling, Nanotechnology, Phthalic Acids, Electrokinetics, Carboxylic Acids, Carbocyclic Acids, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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