蚌埠医学院化学教研室,安徽 蚌埠 233000
王晨(1997年生),男;研究方向:纳米材料的制备与应用; E-mail: 20201007026@stu.bbmc.edu.cn
陈艳(1984年生),女;研究方向:纳米材料的制备与应用; E-mail:2014039@bbmc.edu.cn
纸质出版日期:2022-09-25,
网络出版日期:2022-01-17,
收稿日期:2021-09-13,
录用日期:2021-10-13
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王晨,刘帅,陈艳.新型荧光纳米显影剂的制备及其在指纹显影方面的应用[J].中山大学学报(自然科学版),2022,61(05):117-125.
WANG Chen,LIU Shuai,CHEN Yan.Preparation of new fluorescent nano-developer and its application in latent fingerprint identification[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2022,61(05):117-125.
王晨,刘帅,陈艳.新型荧光纳米显影剂的制备及其在指纹显影方面的应用[J].中山大学学报(自然科学版),2022,61(05):117-125. DOI: 10.13471/j.cnki.acta.snus.2021C019.
WANG Chen,LIU Shuai,CHEN Yan.Preparation of new fluorescent nano-developer and its application in latent fingerprint identification[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2022,61(05):117-125. DOI: 10.13471/j.cnki.acta.snus.2021C019.
通过不同配比的三聚氰酸和三聚氰胺的一步聚合作用制备得到新型氮化碳纳米荧光显影剂,并采用粉末喷洒法详细研究了其不同条件下的指纹显影效果。结果表明:该材料光学性能稳定,优于传统方法制备得到的材料;当三聚氰酸与三聚氰胺配比为1∶5时,荧光强度最强,不仅在暗室下能够显现指纹清晰的乳突线和细节特征,在日光下显影效果同样良好,并适用于大部分常见的载客体,此外,该材料还可以在365 nm紫外灯连续照射240 min内保持较为理想的显影效果,甚至可以很好地显现留存20 d的指纹。
The new carbon nitride fluorescent developer material can be prepared by the polymerization of cyanuric acid and melamine in different proportions. The powder spraying method was used to study the fingerprint development effect under different conditions in detail. The results show that the optical performance of the resulted sample is stable and strong, which is better than those prepared by traditional methods. Notably, when the raw material ratio is 1∶5, the fluorescence intensity is the strongest. For its property of fingerprint identification, papillary lines and detailed features of fingerprint can be clearly displayed in darkroom and also in daylight, and its ability of fluorescent material is suitable for most common objects. Moreover, a relatively stable development effect of this fluorescent agent was maintained under a continuous irradiation with 365 nm UV lamps for 240 min, and this fluorescent agent can even show the fingerprints left for 20 days.
潜指纹显影氮化碳显影剂
latent fingerprint identificationcarbon nitridedeveloper
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