表面增强拉曼光谱检测单根有色纤维中染料探究  

Identification for Disperse Dyes on Single Fiber by SERS

作　　者：王雅晨 孙其然 张清华 卞新伟 WANG Yachen;SUN Qiran;ZHANG Qinghua;BIAN Xinwei(Shanghai Forensic Senice Platform,Key Lab of Forensic Science,Ministry of Justice,Academy of Forensic Science,Shanghai 200063,China)

机构地区：[1]司法鉴定科学研究院,上海市司法鉴定专业技术服务平台,司法部司法鉴定重点实验室,上海200063

出　　处：《中国司法鉴定》2020年第4期59-62,共4页Chinese Journal of Forensic Sciences

基　　金：中央科研院所公益专项(GY2018G-5、GY2016G-6);国家自然科学基金(161605132、U1736102);上海市司法鉴定专业技术服务平台资助项目(19DZ 2292700)。

摘　　要：目的采用表面增强拉曼光谱对有色纤维中的染料进行表征,研究该方法对单根有色纤维上分散染料的检测能力。方法将制备好的纳米银溶胶直接滴加在有色纤维表面,采用InVia激光显微拉曼光谱仪在785 nm激发波长,50倍物镜条件下,对分散红17、分散蓝35染色的单根棉纤维、粘胶纤维进行拉曼光谱表征。结果通过对红、蓝两种分散染料染色的单根棉纤维、粘胶纤维进行检测,可以发现,表面增强拉曼光谱可以检测出纤维中的分散红17染料、分散35染料。结论表面增强拉曼光谱在检测单根有色棉纤维、粘胶纤维中的染料具有潜在的应用前景。Objective To characterize and analyze disperse red 17(DR17)and disperse blue 35(DB35)on single fibre by SERS and to explore discrimination capability of SERS.Methods Add one drop of the colloid on single colored fiber and then Raman spectra recorded with excitation wavelength at 785 nm were carried out on a Renishaw Raman spectrometer coupled to a 50x object lens.Single cotton or viscose fiber dyed by DR17 and DB35 are characterized and analyzed by inVia Raman microscope.Results The method used to characterize colored fiber can tell the two kinds of disperse dyes.Conclusion SERS expands methods for identification disperse dyes on single fiber,and provide a good method for verify single fibers.

关 键 词：表面增强拉曼光谱 棉纤维 粘胶纤维 分散染料 分散红17 分散蓝35 

分 类 号：DF795.2[医药卫生—法医学]