| 钐钆共掺杂荧光配合物的合成及在潜手印显现中的应用 |
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| 引用本文： | 辛翠,王猛,魏涓,肖骏,黄鑫. 钐钆共掺杂荧光配合物的合成及在潜手印显现中的应用[J]. 化学研究与应用, 2022, 34(1): 119-125. DOI: 10.3969/j.issn.1004-1656.2022.01.015 |
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| 作者姓名： | 辛翠 王猛 魏涓 肖骏 黄鑫 |
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| 作者单位： | 湖南警察学院刑事科学技术系,湖南 长沙 410138;中国刑事警察学院痕迹检验技术系,辽宁 沈阳 110035 |
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| 基金项目： | 国家自然科学基金青年基金项目(21205139、21802169)资助;湖南省教育厅科学研究项目优秀青年课题(20B209)资助。 |
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| 摘 要： | 以2-噻吩甲酰三氟丙酮(TTA)为第一配体,邻菲罗啉(o-Phen)为第二配体,利用共沉淀法合成一系列钐钆共掺杂荧光配合物,并优化了该系列荧光配合物的合成条件(反应温度、体系pH、稀土离子相对含量).将最优条件合成的Sm0.5 Gd0.5 TTA3(o-Phen)荧光配合物粉末用于常见光滑非渗透性客体表面潜在手印的显现...
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| 关 键 词： | 手印显现 荧光配合物 手印 钐 钆 |
Synthesis of samarium-gadolinium co-doped rare earth fluorescent complex and their applications in latent fingerprint development |
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| XIN Cui,WANG Meng,WEI Juan,XIAO Jun,HUANG Xin. Synthesis of samarium-gadolinium co-doped rare earth fluorescent complex and their applications in latent fingerprint development[J]. Chemical Research and Application, 2022, 34(1): 119-125. DOI: 10.3969/j.issn.1004-1656.2022.01.015 |
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| Authors: | XIN Cui WANG Meng WEI Juan XIAO Jun HUANG Xin |
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| Affiliation: | (Department of Criminal Science and Technology,Hunan Police College,Changsha 410138,China;Department of Trace Examination,National Police University of China,Shenyang 110035,China) |
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| Abstract: | A series of rare earth fluorescent complexes containing Samarium-Gadolinium co-doped were synthesized via a precipitation approach,using 2-Thienyl trifluoroacetone(TTA)as the first ligand,respectively,and o-Phen as the second ligand.Their synthesis conditions were also optimized systematically,including reaction temperature,system pH,relative content of rare earth ions.The powders of Sm0.5Gd0.5TTA3(o-Phen)complex synthesized under optimal conditions were used to develop the latent fingerprints on various of smooth substrates.The sensitivity,contrast,selectivity,applicability for handprint development were investigated in detail.The results showed that the contrast between the developed fingerprint and the substrate was quite high,under the excitation of 365nm ultraviolet light.Handprint lines are coherent and clear,and the details are clearly visible.Therefore,the rare earth fluorescent complex had high contrast,good selectivity and strong applicability for developing latent fingerprints,and also showed a better develop effect for old fingerprints. |
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| Keywords: | fingerprint development fluorescence complex latent fingerprint samarium gadolinium |
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