基于二氧化硅微球表面双模板印迹壳层的制备及同时检测饮料中的罗丹明B与邻苯二甲酸二苄酯
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- 英文论文题名：Preparation of Dual-template Molecular Imprinted Shell Based on Silica Microsphere Surface for Simultaneous Determination of Rhodamine B and Dibenzyl Phthalate in Beverage
- 论文作者：龙泽荣 ; 徐微微
- 英文论文作者：Zerong Long ; Weiwei Xu ; Xinjiang Uygur Autonomous Region Product Quality Supervision and Inspection Institute ; Key Laboratory of Oil and Gas Fine Chemicals ; Ministry of Education ; Xinjiang University
- 年：2016
- 作者机构：新疆维吾尔自治区产品质量监督检验研究院;新疆大学石油天然气精细化工教育部自治区重点实验室;
- 论文关键词：种子生长法 ; 纳米印迹壳层 ; 罗丹明B ; 邻苯二甲酸二苄酯 ; 饮料
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十六分会：纳米材料合成与组装
- 语种：中文
- 分类号：O647.33;TS275
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十六分会 ; 纳米材料合成与组装
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：212k
- 原文格式：D
- 会议级别：全国
摘要
本文以罗丹明B(RhB)和邻苯二甲酸二苄酯(DBzP)为共模板,以St?ber和"种子生长法"相结合获得的二氧化硅微球为载体,在其表面采用表面印迹技术成功制备了纳米印迹壳层。其结构和形貌分别采用红外光谱与扫描电镜进行表征。同时进行了一系列的吸附性能实验。动力学吸附实验结果表明RhB和DBzP在MIPs达到平衡吸附的时间约为35min。等温吸附实验结果表明室温条件下,RhB和DBzP在MIPs的最大吸附量分别为40.89mg·g~(-1)和38.06mg·g~(-1)。干扰性实验结果表明MIPs对DBzP和RhB吸附明显高于其他结构类似物以及结构不同的干扰物。采用UPLC技术,以MIPs为吸附剂同时提取饮料中的RhB和DBzP,在三个加标浓度下,对RhB的加标回收率在86.4-92.8%之间,对DBzP的加标回收率在88.3–91.3%之间,相对标准偏差低于6%。因而MIPs可用于从食品或其包装材料中分别提取RhB和DBzP或者同时提取的优选的分离材料。
A molecularly imprinted nanoshell was prepared successfully by using rhodamine B(RhB) and dibenzyl phthalate(DBzP) as template and silica microspheres as supporter based on the combination of the molecular imprinting technique, sol-gel and seed-mediated growth synthesis. The imprinted microspheres were characterized by FT-IR and SEM. Meanwhile, batch adsorption experiments showed the imprinted particles reached the equilibrium within 30 min and the maximum adsorption was up to 40.89 and 38.06 mg·g-1 for RhB and DBzP at ambient temperature, respectively. The imprinted particles also showed excellent selectivity for Rh B and DBzP than any other interferents. Furthermore, the imprinted particles coupled with UPLC was successfully applied to simultaneous analysis of Rh B and DBzP in two spiked beverage samples with average recoveries in the range of 86.4-92.8% for RhB and 88.3–91.3% for DBzP with the relative standard deviation lower than 6%. Thus, the imprinted polymer is outstanding one of candidate materials for Rh B and DBzP or both extraction in food or their package materials.
A molecularly imprinted nanoshell was prepared successfully by using rhodamine B(RhB) and dibenzyl phthalate(DBzP) as template and silica microspheres as supporter based on the combination of the molecular imprinting technique, sol-gel and seed-mediated growth synthesis. The imprinted microspheres were characterized by FT-IR and SEM. Meanwhile, batch adsorption experiments showed the imprinted particles reached the equilibrium within 30 min and the maximum adsorption was up to 40.89 and 38.06 mg·g-1 for RhB and DBzP at ambient temperature, respectively. The imprinted particles also showed excellent selectivity for Rh B and DBzP than any other interferents. Furthermore, the imprinted particles coupled with UPLC was successfully applied to simultaneous analysis of Rh B and DBzP in two spiked beverage samples with average recoveries in the range of 86.4-92.8% for RhB and 88.3–91.3% for DBzP with the relative standard deviation lower than 6%. Thus, the imprinted polymer is outstanding one of candidate materials for Rh B and DBzP or both extraction in food or their package materials.
引文
[1]Prasad,B.B;Jauhari,D.;Tiwari,M.P.Biosens.Bioelectron.2013,50:19
[2]Wang,X.;Kang,Q.;Shen,D.;Zhang,Z.;Li,J.,Chen,L.Talanta,2014,124:7
[2]Wang,X.;Kang,Q.;Shen,D.;Zhang,Z.;Li,J.,Chen,L.Talanta,2014,124:7