A simple method to determine bioethanol content in gasoline using two-step extraction and liquid scintillation counting.

Abstract:

:A simple method for determining bioethanol content in gasoline containing bioethanol (denoted as E-gasoline in this study) is urgently required. Liquid scintillation counting (LSC) was employed based on the principle that (14)C exists in bioethanol but not in synthetic ethanol. Bioethanol was extracted in two steps by water from E-gasoline containing 3% (E3) or 10% (E10) bioethanol. The (14)C radioactivity was measured by LSC and converted to the amount of bioethanol. The bioethanol content in E-gasoline was determined precisely from the partition coefficient in the extraction and the amount of bioethanol in the water phases: 2.98+/-0.10% for E3 and 10.0+/-0.1% for E10 (means+/-SD; n=3). It appears that this method can be used to determine bioethanol content in E-gasoline quickly and easily.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Yunoki S,Saito M

doi

10.1016/j.biortech.2009.06.027

subject

Has Abstract

pub_date

2009-12-01 00:00:00

pages

6125-8

issue

23

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(09)00689-0

journal_volume

100

pub_type

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