| 纳米金光度法快速检测水中雌激素 |
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| 引用本文： | 余玲,;张银堂,;张丹华,;陈冉,;陈芳,;韦秀华,;徐茂田.纳米金光度法快速检测水中雌激素[J].商丘师范学院学报,2014(9):30-33. |
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| 作者姓名： | 余玲 ;张银堂 ;张丹华 ;陈冉 ;陈芳 ;韦秀华 ;徐茂田 |
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| 作者单位： | [1]中南大学化学化工学院,湖南长沙410083; [2]商丘师范学院化学化工学院,河南商丘476000; [3]郑州大学化学与分子工程学院,河南郑州450052 |
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| 基金项目： | 国家自然科学基金资助项目（No.20905045,21175091）;河南省科技厅资助项目（No.102102310385,112102310217）和河南省高校青年骨干教师资助计划（2012GGJS-168） |
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| 摘 要： | 利用紫外可见光度法研究了纳米金粒子与雌激素的相互作用,纳米金与雌酮发生相互作用后,吸收光谱明显红移.吸光度比值A/A520与雌酮浓度的对数值在1.0×10-7~1.0×10-5mol/L范围内呈良好的线性关系,检测限为4.7×10-9mol/L.本研究建立了一种快速、方便检测雌激素的新方法,为水体、奶粉、食品中雌激素的检测提供了一条新的途径.
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| 关 键 词： | 雌激素 可见光谱 纳米金 |
Rapid spectroscopic determination of estrogen in water using gold nanoparticles |
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| Institution: | YU Ling, ZHANG Yintang, ZHANG Danhua, CHEN Ran, CHEN Fang, WEI Xiuhua, XU Maotian (1. Collage of Chemistry and Chemical Engineering, Central South University, Changsha 41008, China; 2. Collage of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China; 3. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450052, China) |
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| Abstract: | The interaction of gold nanoparticles （ AuNPs ） with estrogen was studied by ultraviolet and visible spectroscopy .Firstly, AuNPs were prepared through reduction of chloroauric acid by sodium citrate .The resultant nanoparticles were with uniform size distribution and good dispersity , and the mean particle diameter was about 13-6 nm.The absorption spectra have obvious red shift when AuNPs encounter estrone .A good linear relation between absorption and logarithm concentration of oestrone was found in the range of 1.0 ×10 -7 ~1.0 ×10 -5 mol · L-1 and with detection limit of 4.67 ×10 -9 mol· L-1 . |
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| Keywords: | gold nanoparticles estrone UV-visible spectroscopy |
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