Oznaczanie paliw rzepakowych EMKOR w olejach silnikowych metodą spektrometrii IR

It was presented IR spectrophotometry method for determination of methyl esters of higher fatty acids of rapeseed oils, in used engine oils, used as diesel fuels. Absorbance measurements of used oils in comparison to new oil and measurements new oil standards with 0 to 20 % of EMKOR, make possible determination of EMKOR concentration in used engine oils with accuracy = +- 5 %. It was used absorption band 1745 +- 5 % cm-1 and as a reference KBr was used. The method was verified on dozens samples, coming from various engines fuelled EMKOR fuel in different service conditions.

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