Research Progress on Detection Methods of Heavy Metals in Aquatic Products
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Abstract:
Heavy metals are concentrated in aquatic products and can enter the body in various ways. When the body's intake of heavy metals exceeds a certain amount, it will cause various hazards to the body. Therefore, more and more scholars pay attention to the fact that the content of heavy metals in aquatic products has gradually become one of the important reasons for limiting the safety of aquatic products, but the content of heavy metals enriched in aquatic products is relatively low, and it is difficult to determine them quickly and accurately. This article mainly reviews the heavy metal detection technology and sample pretreatment methods in aquatic products. It introduces the regulations of various countries and organizations on the heavy metal limit of aquatic products, and focuses on the dry ashing method and sample pretreatment methods commonly used in sample pretreatment methods. Wet digestion, microwave-assisted extraction, ultrasonic-assisted extraction, ion exchange preconcentration, and inductively coupled plasma mass spectrometry, atomic absorption spectrometry, atomic fluorescence spectrometry, liquid chromatography-inductively coupled plasma mass spectrometry in detection technology, as well as the principles, advantages and disadvantages of detection methods, and the detection and development of heavy metals are summarized and prospected.
