適配體調(diào)控摻金富勒烯碳點催化納米金反應(yīng)-分子光譜法測定砷、汞和鉛
發(fā)布時間：2021-06-28 15:25
以富勒烯做前驅(qū)物,采用微波法簡便快速制備了摻金碳點(CDAu),并對其進行了詳細表征。實驗發(fā)現(xiàn)CDAu對葡萄糖還原氯金酸生成納米金（AuNP）這一納米反應(yīng)具有較強的催化作用,并用SERS、RRS、熒光對該納米反應(yīng)進行了研究。在納米反應(yīng)體系中加入As（Ⅲ）核酸適配體(AptAs)后,碳點被適配體包裹,碳點催化作用減弱,導(dǎo)致生成的AuNP減少,其SERS強度減弱;當加入靶分子As（Ⅲ）后與AptAs特異性結(jié)合,使CDAu得到釋放,使其催化活性恢復(fù),體系的SERS強度增強,在一定范圍內(nèi),其增強程度與As（Ⅲ）濃度成線性關(guān)系,據(jù)此建立了一種簡便快速測定0.04-0.23μg/L As（Ⅲ）的SERS定量分析新方法,檢出限為0.02μg/L。AptAs-As（Ⅲ）-CDAu2-葡萄糖-HAuCl4體系RRS和光度法測定As（Ⅲ）的線性范圍分別為0.06-0.38μg/L和0.03-0.2μg/L,檢出限分別為0.03μg/...
【文章來源】：廣西師范大學(xué)廣西壯族自治區(qū)
【文章頁數(shù)】：96 頁
【學(xué)位級別】：碩士
【部分圖文】：
適配體篩選循環(huán)圖[4]
碳納米材料的應(yīng)用[39]
碳材料發(fā)展史[44]
【參考文獻】：
期刊論文
[1]新型紫外可見光法測定沙田柚中維生素C的含量[J]. 羅志輝,陳麗娜,陳冠丹,韋慶敏,李娜. 食品安全質(zhì)量檢測學(xué)報. 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)
本文編號：3254572
【文章來源】：廣西師范大學(xué)廣西壯族自治區(qū)
【文章頁數(shù)】：96 頁
【學(xué)位級別】：碩士
【部分圖文】：
適配體篩選循環(huán)圖[4]
碳納米材料的應(yīng)用[39]
碳材料發(fā)展史[44]
【參考文獻】：
期刊論文
[1]新型紫外可見光法測定沙田柚中維生素C的含量[J]. 羅志輝,陳麗娜,陳冠丹,韋慶敏,李娜. 食品安全質(zhì)量檢測學(xué)報. 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)
本文編號：3254572
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