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SERS-active Au NR oligomer sensor for ultrasensitive detection of mercury ions

机译:SERS-ACTIVE AU NR低聚体传感器,用于超声检测汞离子

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摘要

In this study, we developed a sensitive surface-enhanced Raman scattering (SERS) sensor based on a self-assembled Au NR oligomer for the detection of mercury ions (Hg2+) in aqueous solution. Taking advantage of the high sensitivity of Raman spectroscopy and high specificity of the T-Hg2+-T base pair, the method was used in ultra-trace analysis of Hg2+ in real water samples. The developed Hg2+ detection method showed an excellent linear range from 5 to 5000 pM and a limit of detection (LOD) of 4.3 pM (0.86 pg mL(-1)). The recovery experiment presented excellent recovery ranging from 88.98%-105.76%, and demonstrated that the sensor could be used to monitor the concentration of Hg2+ for environmental water.
机译:在这项研究中,我们基于自组装的Au NR低聚体开发了一种敏感的表面增强拉曼散射(SERS)传感器,用于检测水溶液中的汞离子(HG2 +)。 利用拉曼光谱的高灵敏度和T-HG2 + -T基对的高特异性,该方法用于实际水样中HG2 +的超痕量分析。 发育的HG2 +检测方法显示出优异的线性范围为5至5000PPM和4.3μm的检测限(LOD)(0.86pg ml(-1))。 恢复实验呈现出优异的恢复,范围为88.98%-105.76%,并证明了传感器可用于监测环境水的Hg2 +的浓度。

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  • 来源
    《RSC Advances》 |2015年第100期|共6页
  • 作者单位

    Jiangnan Univ Sch Food Sci &

    Technol State Key Lab Food Sci &

    Technol Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Sch Food Sci &

    Technol State Key Lab Food Sci &

    Technol Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Sch Food Sci &

    Technol State Key Lab Food Sci &

    Technol Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Sch Food Sci &

    Technol State Key Lab Food Sci &

    Technol Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Sch Food Sci &

    Technol State Key Lab Food Sci &

    Technol Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Sch Food Sci &

    Technol State Key Lab Food Sci &

    Technol Wuxi 214122 Jiangsu Peoples R China;

    Jiangnan Univ Sch Food Sci &

    Technol State Key Lab Food Sci &

    Technol Wuxi 214122 Jiangsu Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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