The fraudulent practice of adding ammonium salts to milk in order to enhance the nitrogen content has serious health implications including renal failure. Ammonium ion detection has been targeted through the conventional analytical methods however, lack of portability and complex operation limits their use for field applications. In this scenario, paper-based test strips and electrochemical sensors can provide strategies for point-of-test applications. Here, an ion-selective paper-based chromogenic strip and an electrochemical sensor has been developed for detection and quantification of ammonium ions. The developed paper-based chromogenic strip showed detection limit of 0.008 % (w/v) for ammonium ions, whereas, electrochemical sensor showed an LOD of 0.0062 ± 0.0023 % (w/v) with a sensitivity of 1.6 × 10 A.% .mm. The developed paper-based chromogenic strip and electrochemical sensor can be employed by regulatory bodies and dairy industries to ensure the safety and quality of milk.

中文翻译：

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用于检测铵离子的离子选择性纸基显色条和电化学传感器


在牛奶中添加铵盐以提高氮含量的欺诈行为会产生严重的健康影响，包括肾功能衰竭。铵离子检测一直是通过传统的分析方法进行的，然而，缺乏便携性和复杂的操作限制了它们在现场应用的使用。在这种情况下，纸基测试条和电化学传感器可以为测试点应用提供策略。这里，开发了一种离子选择性纸基显色条和电化学传感器，用于铵离子的检测和定量。开发的纸基显色条对铵离子的检测限为 0.008% (w/v)，而电化学传感器的 LOD 为 0.0062 ± 0.0023% (w/v)，灵敏度为 1.6 × 10 A.%。毫米。所开发的纸基显色条和电化学传感器可供监管机构和乳制品行业使用，以确保牛奶的安全和质量。