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	Identification and analysis of Triphenyltin chloride with surface enhanced Raman scattering spectroscopy
	Jiang, Juan1; Gao, Jun-Min1; Guo, Jin-Song1,2; Zhou, Qiu-Hong1; Liu, Xiao-Hong3; Ouyang, Wen-Juan2; Zhang, Peng1; Fu, Wei-Ling3; Zhang, Wei2; He, Shi-Xuan2
	2016-10-01
摘要	Triphenyltin (TPhT) is a kind of organotin compounds which have been used ubiquitously as herbicide, pesticide, and fungicide in agriculture. The present study provides the possibility to detect and monitor TPhT with normal Raman spectroscopy and surface enhanced Raman scattering (SERS) spectroscopy. Firstly, the complete vibrational Raman spectra characterization of TPhT along with the IR spectroscopy were reported for the first time. Then a wide range of pH values were carried out to choose the optimal pH value in TPhT detection by using Raman spectroscopy. Afterwards, Raman spectra of various TPhT solutions were collected and analyzed. The results indicate that the optimal pH value for TPhT detection by Raman spectroscopy is 5.5, and with silver nanoparticles (Ag NPs) as SERS substrate is an effective technique for trace TPhT detection with an enhancement by 5 orders of magnitude and the detection limit can be as low as 0.6 ng/L within less than 30 s. Finally, in this study, the residual of TPhT on apple peel was investigated by casting different concentrations of TPhT on apple peel under the current optimized condition. The result demonstrates that TPhT could be detected based on its SESR spectra at 6.25 ng/cm(2) in standard solutions. (C) 2016 Elsevier Ltd. All rights reserved.
关键词	Triphenyltin Pesticides detection Raman spectroscopy Surface enhanced Raman scattering Silver nanoparticles
DOI	10.1016/j.chemosphere.2016.07.004
发表期刊	CHEMOSPHERE
ISSN	0045-6535
卷号	161页码:96-103
通讯作者	Gao, JM (reprint author), Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China. ; Liu, XH (reprint author), Third Mil Med Univ, Southwest Hosp, Dept Lab Med, Chongqing 400038, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000382409200011
语种	英语