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MODELING OF LUMINESCENCE QUENCHING-BASED SENSORS - COMPARISON OF MULTISITE AND NONLINEAR GAS SOLUBILITY MODELS

机译:基于发光猝灭的传感器建模-多点和非线性气体溶解度模型的比较

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摘要

Quenching-based luminescence sensors generally are supported in organic or inorganic polymers and exhibit nonlinear Stern-Volmer quenching behavior. Two common explanations of the nonlinearity are either multisite binding or the nonlinear solubility properties of the analyte in the sensor. Both models have three fitting parameters. These two models are compared, and the merits of each are discussed. It is shown that while the underlying physical bases of tbe two models are radically different and chemically incompatible, the two models are mathematically equivalent for data fitting. The correspondence of parameters in the two models is given. The nonlinear solubility model is probably computational slightly simpler to use, but the two-site model seems to better approximate the underlying chemistry of systems studied to date.
机译:基于淬火的发光传感器通常由有机或无机聚合物支撑,并表现出非线性的St​​ern-Volmer淬灭行为。非线性的两种常见解释是多位结合或传感器中分析物的非线性溶解性。两种型号都有三个拟合参数。比较了这两种模型,并讨论了每种模型的优点。结果表明,尽管这两个模型的基本物理基础是根本不同的,并且在化学上不兼容,但两个模型在数学上等效于数据拟合。给出了两个模型中参数的对应关系。非线性溶解度模型可能在计算上更简单易用,但两点模型似乎可以更好地近似迄今研究的系统的基本化学性质。

著录项

  • 来源
    《Analytical Chemistry》 |1995年第8期|p.1377-1380|共4页
  • 作者

    Demas JN; Degraff BA; Xu WY;

  • 作者单位

    Degraff BA, UNIV VIRGINIA, DEPT CHEM, CHARLOTTESVILLE, VA 22901, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 分析化学;
  • 关键词

    Metal complexes; Oxygen;

    机译:金属络合物;氧气;
  • 入库时间 2022-08-18 01:05:42

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