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

Rapta, P., Paligov√°, J., Rotheneder, H. and CvengroŇ°, J. Determination of potassium in fatty acid methyl esters applying an ion-selective potassium electrode Chemical Papers, Vol.61, No. 5, 2007, 337-341

Document type: ńĆl√°nok z ńćasopisu / Journal Article
Collection: Chemical papers  

Author(s) Rapta, P.
Paligov√°, J.
Rotheneder, H.
CvengroŇ°, J.
Title Determination of potassium in fatty acid methyl esters applying an ion-selective potassium electrode
Journal name Chemical Papers
Publication date 2007
Year available 2007
Volume number 61
Issue number 5
ISSN 0366-6352
Start page 337
End page 341
Place of publication Poland
Publisher Versita
Collection year 2007
Language english
Subject 250000 Chemical Sciences
250100 Physical Chemistry (incl. Structural)
Abstract/Summary 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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