油酸中ZnS∶Mn量子点的制备及火腿肠中苏丹Ⅰ测定研究  

Preparation of ZnS∶Mn quantum dots in oleic acid and determination of sundan Ⅰin ham sausage

作　　者：张艺[1] 朱振华[1] 王兴磊[1] 

机构地区：[1]新疆凝聚态相变与微结构实验室污染物化学与环境治理重点实验室伊犁师范学院,伊宁835000

出　　处：《化工新型材料》2017年第9期238-240,共3页New Chemical Materials

基　　金：新疆维吾尔自治区自然科学基金青年项目(2016D01C389)

摘　　要：以氯化锰、氯化锌、硫化钠为原料,在油酸-无水乙醇混合溶剂中,180℃条件下,反应8h,成功制备了ZnS∶Mn量子点。320nm激发条件下,ZnS∶Mn量子点的荧光发射峰位于420nm。且苏丹Ⅰ在350~540nm范围内有较好的吸收,利用苏丹Ⅰ对ZnS∶Mn量子点荧光强度的猝灭建立荧光探针体系,当苏丹Ⅰ浓度在5.0×10-8~7.0×10-7 mol/L内,线性方程为ΔF=389.29-25.12c,相关系数(R)为0.9915(n=5),检测限为1.46×10-8 mol/L。且成功用于实际样品中苏丹Ⅰ的检测,加标回收率在92.8%~99.2%之间。ZnS∶Mn quantum dots were prepared in the mixed solvents of ethanol and oleic acid,at 180℃for 8hwith manganese chloride,zinc chloride and sodium sulfide as raw materials.Under the 320 nm excitation condition,the fluorescence emission of ZnS∶Mn quantum dots located at 420 nm.The absorption peaks of Sultan Ⅰ was in the range of 350~540nm.The fluorescence probe system was established with quenching the fluorescence intensity of ZnS∶Mn quantum dots by Sultan Ⅰ.The fluorescence intensity of ZnS∶Mn Quantum Dots was proportional to the concentration over the range of 5.0×10^（-8） mol/L^7.0×10^（-7） mol/L for Sultan Ⅰ,the linear regression equation wasΔF=389.29-25.12 c,the corresponding detection limit was 1.46×10^（-8） mol/L,R was 0.9915（n=5）.

关 键 词：油酸 ZnS∶Mn 荧光探针 苏丹 食品安全 

分 类 号：O657.3[理学—分析化学] TS251.7[理学—化学]