Eight microelectrodes based on carbon and diamond paste modified with zinc complexes with: tetraphenylporphyrin (ZnTPP), tetranaphtoporphyrin (ZnTNP), tetrasulphophenylporphyrin (ZnTSPP) and phtalocyanine (ZnPc), were proposed for the assay of indigo carmine in wastewaters, pharmaceutical formulations and biological samples. All measurements were performed using differential pulse voltammetry. Indigo carmine was recovered reliable from real samples in percentages higher than 90.00%. The surface of the microelectrodes can easily be renewed by simple polishing, obtaining a fresh surface ready for use in a new assay.

中文翻译：

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基于卟啉锌和酞菁锌的点微传感器测定靛蓝胭脂红

提出了八种基于碳和金刚石糊剂的微电极，这些电极经过锌配合物修饰而成，这些配合物具有四苯基卟啉（ZnTPP），四萘卟啉（ZnTNP），四硫苯基卟啉（ZnTSPP）和酞菁（ZnPc），用于测定废水，药物制剂和生物样品中的靛蓝胭脂红。 。所有测量均使用差分脉冲伏安法进行。从真实样品中可靠地回收了靛蓝胭脂红，其百分比高于90.00％。微电极的表面可以通过简单的抛光轻松地更新，从而获得可用于新测定的新鲜表面。