Determination of potassium in fatty acid methyl esters applying an ion-selective potassium electrode

被引：0
|
作者：
P. Rapta
J. Paligová
H. Rotheneder
J. Cvengroš
机构：
[1] Slovak University of Technology,Department of Physical Chemistry, Faculty of Chemical and Food Technology
[2] BDT,undefined
来源：
Chemical Papers | 2007年 / 61卷
关键词：
methyl esters; alternative fuels; potentiometry; ion-selective electrode; potassium content;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An easy and inexpensive method of potassium determination in fatty acid methyl esters (FAME) applying an ion-selective potassium electrode (ISE-K) is presented. FAME are considered alternative fuel for diesel engines. Simple apparatus and procedure were developed to avoid contact of ester samples with the sensitive ISE-K membrane, which can damage the ISE membrane surface in long time operation. Using different FAME samples with a wide range of known potassium content a calibration curve was constructed. Among all samples, ISE-K satisfactory predicted potassium content in FAME as identified by the AAS reference method.
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页码：337 / 341
页数：4
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