Sensing Polycyclic Aromatic Hydrocarbons with Dithiocarbamate-Functionalized Ag Nanoparticles by Surface-Enhanced Raman Scattering
Sensing Polycyclic Aromatic Hydrocarbons with Dithiocarbamate-Functionalized Ag Nanoparticles by Surface-Enhanced Raman Scattering
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DOI：
10.1021/ac801709e
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发表时间：
2009-02-01
影响因子：
7.4
通讯作者：
Sanchez-Cortes, Santiago
中科院分区：
文献类型：
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作者：
Guerrini, Luca;Garcia-Ramos, Jose V.;Sanchez-Cortes, Santiago
报道了杯[4]芳烃二硫代氨基甲酸酯修饰银纳米粒子的表面增强拉曼散射（Sers）技术对痕量多环芳烃的检测。Sers光谱通过测量污染物的特征指纹振动特征来告知污染物的存在。此外，Sers还揭示了主体和分析物的重要结构信息，这对于理解和推断主客体相互作用机制至关重要。该系统的有效性进行了检查的一组多环芳烃：芘，苯并[c]菲，苯并菲，和晕苯。根据分析结果，推导出各污染物的亲和常数和检测限。
Trace detection of polycyclic aromatic hydrocarbons is reported in this work on dithiocarbamate calix[4]arene functionalized Ag nanoparticles by using surface-enhanced Raman scattering (SERS). SERS spectra informed about the existence of the pollutant by measuring its characteristic fingerprint vibrational features. In addition, SERS revealed important structural information from both the host and the analyte which was crucial to understand and deduce the host-guest interaction mechanism. The effectiveness of this system was checked for a group of PAHs: pyrene, benzo[c]phenanthrene, triphenylene, and coronene. From the analyzed results, the affinity constants and the limit of detection were deduced for each pollutant.