文献类型：期刊文献

英文题名：Surface Enhanced Raman Spectroscopy Detection of Sodium Thiocyanate in Milk Based on the Aggregation of Ag Nanoparticles

作者：Feng, Yanting[1];Mo, Rijian[1];Wang, Ling[1];Zhou, Chunxia[1,2];Hong, Pengzhi[1,2];Li, Chengyong[2,3,4]

机构：[1]Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Shenzhen Inst, Shenzhen 518108, Peoples R China;[3]Guangdong Ocean Univ, Sch Chem & Environm, Zhanjiang 524088, Peoples R China;[4]Guangdong Ocean Univ, Coastal Ecol Engn Technol Res Ctr Zhanjiang City, Zhanjiang 524088, Peoples R China

年份：2019

卷号：19

期号：6

外文期刊名：SENSORS

收录：SCI-EXPANDED(收录号：WOS:000464519300008)、、EI(收录号：20191506758535)、Scopus(收录号：2-s2.0-85063626550)、WOS

基金：This research is funded by the National Natural Science Foundation of China (21874029), Guangdong Yangfan Program (201635018), Guangdong Special Support Program (2017TQ04N706), Science and Technology Planning Project of Guangdong Province (2016A020210114), Technology Planning Project of Zhanjiang City (2018A02014, 2016C01002), Science and Technology Planning Project of Shenzhen City (JCYJ20170818111719650) and Industrial Development Special Funds of Dapeng New Area (KY20170209, KY20180202), Innovation and Development Project about Marine Economy Demonstration of Zhanjiang City (2017C8B1).

语种：英文

外文关键词：surface-enhanced Raman scattering (SERS); milk; Sodium thiocyanate (NaSCN)

外文摘要：A method is developed for detecting the concentration of sodium thiocyanate (NaSCN) in milk based on surface-enhanced Raman scattering (SERS) technology. A trichloroacetic acid solution can be used to enhance the SERS signal because of its function in promoting the aggregation of Ag nanoparticles (Ag NPs). Meanwhile, the protein in milk would be precipitated as trichloroacetic acid added and the interference from protein could be reduced during the detection. In this work, the enhancement factor (EF) is 7. 56 x 10(5) for sodium thiocyanate in water and the limit of detection (LOD) is 0.002 mg/L. Meanwhile, this method can be used to detect the concentration of sodium thiocyanate in milk. Results show that SERS intensity increased as the concentration of sodium thiocyanate increase from 10 to 100 mg/L. The linear correlation coefficient is R-2 = 0.998 and the detection limit is 0.04 mg/L. It is observed that the concentration of sodium thiocyanate does not exceed the standard in the three kinds of milk. The confirmed credibility of SERS detection is compared with conventional methods.