Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 508, Issue -, Pages 309-315Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2016.08.069
Keywords
Surface-enhanced Raman scattering; Silver nanowires-coated silicon wafer; 6-Mercaptopurine; Internal standard
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Funding
- National Natural Science Foundation of P. R. China [21273091, 21221063, 21327803]
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The silver nanowires (AgNWs) were prepared through the method of polyol. The prepared AgNWs were characterized by TEM image, UV-vis spectroscopy and X-ray diffraction (XRD). AgNWs were assembled onto silicon wafer through entropy-driven self-assembly method. The 521 cm(-1) band of silicon was used as internal standard band. The SERS performance of AgNWs-Si substrate was characterized by using R6G as the probe molecule, and the SERS substrate is employed to detect 6-MP. The linear concentration range of 6-MP is 0.05-3.8 mu molL(-1) and the corresponding correlation coefficient is 0.994. The method is satisfactory for detecting 6-MP in two kinds of commercial tablets. (C) 2016 Elsevier B.V. All rights reserved.
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