Abstract In this study, electrochemiluminescence (ECL) from luminol incorporated ion-selective nanoparticles is observed that enables the analysis of aqueous ions (e.g. calcium ions). Aqueous calcium ions are known to transport into the nanoparticles and bind with the ionophore, which leads to the generation of more luminol anions in the nanoparticles to maintain electric neutrality. The presence of more luminol anions increases the electro-oxidation rate and induces an enhanced ECL intensity. The increase of ECL intensity is observed to be linearly dependent on the calcium concentrations from 1 to 500 μM, supporting the ECL determination of aqueous ions. The successful exhibition of these ECL based ion-selective nanosensors will not only provide a universal strategy for the ion detection, but also offer a new detection mechanism in ion-selective opotodes.

中文翻译：

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基于鲁米诺的钙选择性纳米颗粒的电化学发光测定钙离子

摘要 在这项研究中，观察到了结合鲁米诺的离子选择性纳米粒子的电化学发光 (ECL)，可以分析水性离子（例如钙离子）。已知含水钙离子传输到纳米颗粒中并与离子载体结合，这导致纳米颗粒中产生更多鲁米诺阴离子以保持电中性。更多鲁米诺阴离子的存在会增加电氧化速率并诱导增强的 ECL 强度。观察到 ECL 强度的增加与 1 到 500 μM 的钙浓度呈线性关系，支持 ECL 测定水性离子。这些基于 ECL 的离子选择性纳米传感器的成功展示，不仅将为离子检测提供通用策略，