文献类型：期刊文献

中文题名：One-pot synthesis of silver colloid with body-heat for surface-enhanced Raman spectroscopy detections

英文题名：One-pot synthesis of silver colloid with body-heat for surface-enhanced Raman spectroscopy detections

作者：Wanchao Chen[1];Yan Kang[1];Han Zhang[1];Tianxiong Huang[1];Xin Tao[2];Aiping Lu[2];Yiping Du[1]

机构：[1]Shanghai Key Laboratory of Functional Materials Chemistry,School of Chemistry&Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]Department of Quality Assurance,Jiangsu Yangnong Chemical Group Co.,Ltd.,Yangzhou 225009,China

年份：2019

卷号：30

期号：5

起止页码：1027

中文期刊名：Chinese Chemical Letters

外文期刊名：中国化学快报（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2019_2020】；PubMed;

语种：英文

中文关键词：One-pot;synthesis;Silver;colloid;Substrate;Surface-enhanced;Raman;spectroscopy;(SERS)

外文关键词：One-pot synthesis;Silver colloid;Substrate;Surface-enhanced Raman spectroscopy;(SERS)

摘要：In this study,a convenient method of preparing the substrate is proposed with one-pot synthesis of silver colloid under body heat,and the SERS detection uses the fresh substrate to avoid the drawback of substrates’short life of use.The synthesis of silver colloid is carried out in a 10 mL vial by using ascorbic acid as a reductant and trisodium citrate as a stabilizer.The vial is grasped with the palm of the experimenter for several minutes without shaking.The proposed method is simple,rapid,green energy and cost-effective.By adjusting the concentration of trisodium citrate,not only the particle size can be controlled from about 110 nm to 50 nm but also the homogeneity of nanoparticles can be improved.As a SERS substrate,the silver colloid has high batch reproducibility and showed good SERS activity.The relative standard deviation between different manufacturers is 5.51%when the substrate of silver colloid is used for the detection of rhodamine 6 G.Using the substrate,the lowest detection concentrations of rhodamine 6 G,crystal violet,enrofloxacin,melamine and leucomalachite green are 1.0×10-8,6.1×10-8,1.4×10-6,7.1×10-5 and 5.1×10-8 mol/L,respectively.Results demonstrate that the developed method has the advantage of convenience and high efficiency in the field preparation of reliable SERS substrate.
In this study, a convenient method of preparing the substrate is proposed with one-pot synthesis of silver colloid under body heat, and the SERS detection uses the fresh substrate to avoid the drawback of substrates’ short life of use. The synthesis of silver colloid is carried out in a 10 mL vial by using ascorbic acid as a reductant and trisodium citrate as a stabilizer. The vial is grasped with the palm of the experimenter for several minutes without shaking. The proposed method is simple, rapid, green energy and cost-effective. By adjusting the concentration of trisodium citrate, not only the particle size can be controlled from about 110 nm to 50 nm but also the homogeneity of nanoparticles can be improved. As a SERS substrate, the silver colloid has high batch reproducibility and showed good SERS activity. The relative standard deviation between different manufacturers is 5.51% when the substrate of silver colloid is used for the detection of rhodamine 6 G. Using the substrate, the lowest detection concentrations of rhodamine 6 G, crystal violet, enrofloxacin, melamine and leucomalachite green are 1.0×10-8, 6.1×10-8,1.4 × 10-6, 7.1 ×10-5 and 5.1 ×10-8 mol/L, respectively. Results demonstrate that the developed method has the advantage of convenience and high efficiency in the field preparation of reliable SERS substrate.