摘要
探索了水溶性镉硒化锌(ZnxCd1-xSe)荧光量子点溶液对血手印的显现方法。以巯基丙酸(MPA)为修饰剂合成了水溶性荧光量子点ZnxCd1-xSe溶液,并用此溶液对血手印进行了显现。结果良好地显出锡纸、瓷砖、铝合金、黑塑料、透明胶带、玻璃上的血手印;对原血,浓度为50%、20%、10%、5%、1%的血手印,以及放置1天、3天、7天、15天、30天的血手印亦有良好显现。水溶性荧光量子点ZnxCd1-xSe溶液显现出的指纹纹线流畅、细节特征明显,具有很高的实用和鉴定价值。
To develop bloody fingerprint with water-soluble fluorescent ZnxCd1-x Se quantum dots, water-soluble fluorescent ZnxCd1-xSe quantum dots(QDs) synthesized by mercaptopropionic acid(MPA) as modifier are used to develop bloody fingerprint. The bloody fingerprints with different concentrations (original blood, 50%, 20%, 10%, 5% and 1%) and periods(1 day, 3 days, 7 days, 15 days and 30 days) on different object, such as foil,ceramic tile, aluminum, black plastic, transparent tape and glass can clearly be developed. Water-soluble fluorescent ZnxCd1-xSe quantum dots are an effective reagent for developing latent bloody fingerprints with more details, and the development method has excellent effect for identification.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2010年第24期21-24,共4页
Materials Reports
基金
霍英东教育基金(111092)
北京市教育委员会共建项目(JD100410669)