适配体调控掺金富勒烯碳点催化纳米金反应-分子光谱法测定砷、汞和铅
发布时间：2021-06-28 15:25
以富勒烯做前驱物,采用微波法简便快速制备了掺金碳点(CDAu),并对其进行了详细表征。实验发现CDAu对葡萄糖还原氯金酸生成纳米金（AuNP）这一纳米反应具有较强的催化作用,并用SERS、RRS、荧光对该纳米反应进行了研究。在纳米反应体系中加入As（Ⅲ）核酸适配体(AptAs)后,碳点被适配体包裹,碳点催化作用减弱,导致生成的AuNP减少,其SERS强度减弱;当加入靶分子As（Ⅲ）后与AptAs特异性结合,使CDAu得到释放,使其催化活性恢复,体系的SERS强度增强,在一定范围内,其增强程度与As（Ⅲ）浓度成线性关系,据此建立了一种简便快速测定0.04-0.23μg/L As（Ⅲ）的SERS定量分析新方法,检出限为0.02μg/L。AptAs-As（Ⅲ）-CDAu2-葡萄糖-HAuCl4体系RRS和光度法测定As（Ⅲ）的线性范围分别为0.06-0.38μg/L和0.03-0.2μg/L,检出限分别为0.03μg/...
【文章来源】：广西师范大学广西壮族自治区
【文章页数】：96 页
【学位级别】：硕士
【部分图文】：
适配体筛选循环图[4]
碳纳米材料的应用[39]
碳材料发展史[44]
【参考文献】：
期刊论文
[1]新型紫外可见光法测定沙田柚中维生素C的含量[J]. 罗志辉,陈丽娜,陈冠丹,韦庆敏,李娜. 食品安全质量检测学报. 2018(10)
[2]Absorption,fluorescence and resonance Rayleigh scattering spectra of hydrophobic hydrogen bonding of eosin Y/Triton X-100 nanoparticles and their analytical applications[J]. KONG Ling,LIU ZhongFang,HU XiaoLi & LIU ShaoPu* Key Laboratory on Luminescence and Real-time Analysis,Ministry of Education;School of Chemistry and Chemical Engineering,Southwest University,Chongqing 400715,China. Science China（Chemistry）. 2010(11)
[3]Resonance scattering spectral detection of ultratrace IgG using immunonanogold-HAuCl4-NH2OH catalytic reaction[J]. JIANG ZhiLiang1,2,ZHANG ShengSen1,LIANG AiHui2 & HUANG SiYu1 1 School of Environment and Resource,Guangxi Normal University,Guilin 541001,China; 2 Department of Material and Chemical Engineering,Guilin University of Technology,Guilin 541001,China. Science in China（Series B:Chemistry）. 2008(05)
本文编号：3254572
【文章来源】：广西师范大学广西壮族自治区
【文章页数】：96 页
【学位级别】：硕士
【部分图文】：
适配体筛选循环图[4]
碳纳米材料的应用[39]
碳材料发展史[44]
【参考文献】：
期刊论文
[1]新型紫外可见光法测定沙田柚中维生素C的含量[J]. 罗志辉,陈丽娜,陈冠丹,韦庆敏,李娜. 食品安全质量检测学报. 2018(10)
[2]Absorption,fluorescence and resonance Rayleigh scattering spectra of hydrophobic hydrogen bonding of eosin Y/Triton X-100 nanoparticles and their analytical applications[J]. KONG Ling,LIU ZhongFang,HU XiaoLi & LIU ShaoPu* Key Laboratory on Luminescence and Real-time Analysis,Ministry of Education;School of Chemistry and Chemical Engineering,Southwest University,Chongqing 400715,China. Science China（Chemistry）. 2010(11)
[3]Resonance scattering spectral detection of ultratrace IgG using immunonanogold-HAuCl4-NH2OH catalytic reaction[J]. JIANG ZhiLiang1,2,ZHANG ShengSen1,LIANG AiHui2 & HUANG SiYu1 1 School of Environment and Resource,Guangxi Normal University,Guilin 541001,China; 2 Department of Material and Chemical Engineering,Guilin University of Technology,Guilin 541001,China. Science in China（Series B:Chemistry）. 2008(05)
本文编号：3254572
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