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Non-invasive identification of fluorescent dyes in historic textiles by matrix transfer-surface enhanced Raman scattering
Non-invasive identification of fluorescent dyes in historic textiles by matrix transfer-surface enhanced Raman scattering
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机译:通过基质转移表面增强拉曼散射对历史性纺织品中的荧光染料进行非侵入式鉴定
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摘要
A new process is presented to non-invasively identify organic dyes in historic textiles and other works of art. A small gel bead loaded with a SERS substrate is used to gently extract microscopic amounts of dyes from works of art, without the need to remove a sample and separately extract the dye by acid hydrolysis of the fiber-mordant-dye system. The gel bead subsequently is coated with a silver, gold or copper colloid or with silver, gold or copper nanoislands, and is examined in accordance with a surface enhanced Raman scattering technique to identify the dye.
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