title: Determination of Silicon in Gasoline by Directly Measuring under Organic Phase Using Inductively Coupled Plasma Optical Emission Spectroscopy.
abstract: A simple and accurate method was developed for determining silicon in gasoline using inductively coupled plasma optical emission spectroscopy (ICP-OES). For sample inroduction a Burgener nubulizer and a Cyclonic spray chamber were used. A gasoline sample was diluted with isooctane and then introduced into the cooled spray chamber of the ICP-OES. Good linearity was achieved in the silicon concentration range 0.1 - 10.0 mg x kg(-1), and the correlation coefficient was 0.999 96. The detection limit for silicon was 0.012 mg x kg(-1) and the silicon recoveries from gasoline samples were 95.8% - 98.4%, with relative standard deviations of less than 3.0% The method was proved to be simple, reliable and highly sensitive, and suitable for determining silicon in samples of motor gasoline, ethanol-gasoline and methanol-gasoline fuel mixtures those containing not more than 15% (V/V) oxygenates.
authors.forename: Wen-mei
authors.initials: WM
authors.lastname: Zhang
authors.forename: Huan
authors.initials: H
authors.lastname: Wen
authors.forename: Huan-ming
authors.initials: HM
authors.lastname: Lü
authors.forename: Hui-qin
authors.initials: HQ
authors.lastname: Liu
authors.forename: Zhi-sheng
authors.initials: ZS
authors.lastname: Lin
authors.forename: Rong-hua
authors.initials: RH
authors.lastname: Wang