基于金纳米簇比色法对银离子的检测研究
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摘要
银在现代生活中如医药、饮用水的消毒等方面具有广泛的应用,大量银排放到自然环境中,对水中的鱼和环境中的微生物产生伤害.利用水热反应法以牛血清白蛋白为还原剂合成牛血清白蛋白保护的金纳米簇为探针,建立了比色传感器用于银离子的快速检测.该金纳米簇荧光探针对银离子有着较好的选择性,在Ag~+浓度0.3～10 mmol/L范围内Ag~+浓度与紫外吸收强度呈现良好线性关系(R~2=0.987 46),其检测限为0.1 mmol/L.
Silver has a wide range of applications in modern life,such as medicine,drinking water disinfection.A large number of silver released into the natural environment has damaged the fish in water and the microorganisin.Gold nanoparticles are prepared as a colorimetric sensors used for rapid detection of silver ions.The research shows that the probe has a good selectivity toward silver ions and a good linear relationship between 0.1 and 10 nmol/L(R~2=0.987 46). and the detection limit of sliver ions is 0.1 mmol/L.
Silver has a wide range of applications in modern life,such as medicine,drinking water disinfection.A large number of silver released into the natural environment has damaged the fish in water and the microorganisin.Gold nanoparticles are prepared as a colorimetric sensors used for rapid detection of silver ions.The research shows that the probe has a good selectivity toward silver ions and a good linear relationship between 0.1 and 10 nmol/L(R~2=0.987 46). and the detection limit of sliver ions is 0.1 mmol/L.
引文
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[10] Wang Y,Wang Y,Zhou F,et al.Protein-protected Au clusters as a new class of nanoscale biosensor for label-free fluorescence detection of proteases.[J].Small,2012,8(24):3769-3773.
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[14] Almudhaf H F,Abushady A I,Selim M I,et al.Survey of haloacetic acids in household drinking water produced from thermal desalination in Kuwait[J].Open Environmental Sciences,2009,3(1):66-78.
[15] Dworkin R H,Turk D C,Peirce-Sandner S,et al.Assay sensitivity and study features in neuropathic pain trials:an ACTTION meta-analysis[J].Neurology,2013,81(1):67-75.