Determination of primary aromatic amines using immobilized nanoparticles based surface-enhanced Raman spectroscopy |
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| Authors: | Ting Wu Hai-Ting Wang Bo Shen Yi-Ping Du Xuan Wang Zhen-Ping Wang Chuan-Jing Zhang Wen-Bin Miu |
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| Institution: | a Shanghai Key Laboratory of Functional Materials Chemistry, and Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, China;
b Technical Center for Industrial Products and Raw Materials Inspection and Testing, Shanghai Entry-Exit Inspection & Inspection and Quarantine Bureau, Shanghai 200135, China |
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| Abstract: | Primary aromatic amines (PAAs) are substances with toxicity and suspected human carcinogenicity. A facile method for highly sensitive detection of PAAs using surface-enhanced Raman spectroscopy (SERS) is reported. The immobilization of Au nanoparticles (AuNPs) on the glycidyl methacrylate-ethylene dimethacrylate (GMA-EDMA) materials makes the substrate a closely packed but not aggregated Au NP arrays which provides a prominent SERS enhancement. Four PAAs with different substituent groups, namely, p-toluidine, p-nitroaniline, benzidine and 4,4-methylene-bis-(2-chloroaniline) have been successfully identified and quantified. High sensitivity and good linear relationship between SERS signals and concentrations of PAAs are obtained for all four PAAs. |
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| Keywords: | Aromatic amines Surface-enhanced Raman spectroscopy (SERS) Immobilization Au nanoparticles |
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