Direct Analysis of Cr, Ni, Pb and V in Ethanol Fuel by Microwave Plasma-Atomic Emission Spectrometry
22 Nov 2012
Ethanol fuel is increasing in popularity as a renewable source of energy for automobiles. The presence of metals in fuels may reduce engine performance and/or deteriorate the quality of the fuel by oxidative decomposition reactions. In this application note, a method is presented for the direct analysis of ethanol fuel for determination of Cr, Ni, Pb and V using the Agilent 4100 Microwave Plasma-Atomic Emission Spectrometer (MP-AES). A simple dilute-and-shoot procedure, with solutions in 1% v/v HNO3 was adequate for accurate and precise determinations.