摘要
亚硝酸盐作为一种常见的食品添加剂,能够稳定肉制品的色泽、提高风味、延长货架期.然而,亚硝酸盐同时又是一种有毒的污染物,长期过量摄入将会严重危害人体健康,因此,实现对其高灵敏度、高选择性的快速检测具有十分重要的意义.相较于其他传统检测方法,电化学检测法具有操作简单、选择性好、灵敏度高的优势.而电极材料作为电化学传感器的核心组成,其功能和界面性能都将影响到传感器的综合性能.文章详细介绍了碳、金属、金属氧化物、导电聚合物等纳米复合材料在亚硝酸盐电化学检测中的研究进展,重点详述了构建方法和检测结果,最后对亚硝酸盐传感器的未来发展趋势进行了讨论.
Abstract
Nitrite,as a common food additive,can stabilize the color,enhance flavor,and extend shelf life of meat products.However,nitrite is also a toxic pollutant,and long-term excessive intake will seriously endanger human health.Therefore,achieving high sensitivity and selectivity for its rapid detection is of great significance.Compared with other traditional detection methods,electrochemical detection has the advantages of simple operation,good selectivity,and high sensitivity.As the core component of electrochemical sensors,electrode materials will have an impact on the overall performance of the sensor in terms of their functionality and interface performance.This article provides a detailed introduction to the research progress of nanocomposites such as carbon,metals,metal oxides,and conductive polymers in the electrochemical detection of nitrite.The construction methods and detection results are emphasized,and the future development trends of nitrite sensors are discussed.
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