Spectroscopy and Spectral Analysis, Volume. 35, Issue 3, 760(2015)
Determination of Silicon in Gasoline by Directly Measuring under Organic Phase Using Inductively Coupled Plasma Optical Emission Spectroscopy
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·kg-1, and the correlation coefficient was 0.999 96. The detection limit for silicon was 0.012 mg·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.
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ZHANG Wen-mei, WEN Huan, LV Huan-ming, LIU Hui-qin, LIN Zhi-sheng, WANG Rong-hua. Determination of Silicon in Gasoline by Directly Measuring under Organic Phase Using Inductively Coupled Plasma Optical Emission Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2015, 35(3): 760
Received: Mar. 10, 2014
Accepted: --
Published Online: May. 21, 2015
The Author Email: Wen-mei ZHANG (wenhuan0707@163.com)