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Determination of potassium in fatty acid methyl esters applying an ion-selective potassium electrode
Rapta, P., Paligová, J., Rotheneder, H. and Cvengroš, J. Determination of potassium in fatty acid methyl esters applying an ion-selective potassium electrode Chemical Papers, Vol.61, No. 5, 2007, 337-341
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Rapta, P.
Paligová, J.
Rotheneder, H.
Cvengroš, J.
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| Title |
Determination of potassium in fatty acid methyl esters applying an ion-selective potassium electrode
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| Journal name |
Chemical Papers
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| Publication date |
2007
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| Year available |
2007
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| Volume number |
61
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| Issue number |
5
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| ISSN |
0366-6352
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| Start page |
337
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| End page |
341
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2007
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| Language |
english
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| Subject |
250000 Chemical Sciences
250100 Physical Chemistry (incl. Structural)
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| 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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