Probing the sulfur content in gasoline quantitatively with terahertz time-domain spectroscopy  

作　　者：QIN FangLi LI Qian ZHAN HongLei JIN WuJun LIU HongLan ZHAO Kun 

机构地区：[1]State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum [2]Key Laboratory of Oil and Gas Terahertz Spectroscopy and Photoelectric Detection, China Petroleum and Chemical Industry Federation(CPCIF)

出　　处：《Science China(Physics,Mechanics & Astronomy)》2014年第7期1404-1406,共3页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Key Basic Research Program of China(Grant No.2014CB744302);the Specially Funded Program on National Key Scientific Instruments and Equipment Development(Grant No.2012YQ140005);the Beijing National Science Foundation(Grant No4122064);the Science Foundation of the China University of Petroleum(Beijing)(Grant Nos.QZDX-2010-01 and KYJJ2012-06-27)

摘　　要：Terahertz time-domain spectroscopy(THz-TDS)was used for the quantitative detection of sulfur content in gasoline.Models of chemo metrics methods and partial least squares(PLS)were built to measure THz-TDS and the sulfur content.All of the samples were divided into two parts.One part was used for calibration and the other one for validation.In order to evaluate the quality of the models,the correlation coefficient(R)and root-mean-square errors(RMSE)of calibration and validation models were calculated.The value of R and RMSE were close to 1 and 0 within acceptable levels,respectively,indicating that the combination of THz-TDS and PLS is a potential method for further quantitative detection.Terahertz time-domain spectroscopy（THz-TDS）was used for the quantitative detection of sulfur content in gasoline.Models of chemo metrics methods and partial least squares（PLS）were built to measure THz-TDS and the sulfur content.All of the samples were divided into two parts.One part was used for calibration and the other one for validation.In order to evaluate the quality of the models,the correlation coefficient（R）and root-mean-square errors（RMSE）of calibration and validation models were calculated.The value of R and RMSE were close to 1 and 0 within acceptable levels,respectively,indicating that the combination of THz-TDS and PLS is a potential method for further quantitative detection.

关 键 词：sulfur content GASOLINE terahertz spectroscopy 

分 类 号：O433[机械工程—光学工程]