Recent Progresses on Detection of Mercury Ions for Protecting Vegetable Products Safety

Abstract

Abstract In vegetable industry, heavy metal pollution is a serious problem, which possesses a serious impact on the human health, hinder the development of vegetable industry. It is valid to promote the detection of mercury ions for protecting food safety, especially, vegetable is a sensitive kind of agriculture product for it need amount of water to irrigate, which would bring exogenous mercury ion into it. Among them, mercury ion (Hg2+) is the most poison substance. Detection of mercury ion includes atomic absorption spectroscopy, atomic fluorescence spectroscopy, inductively coupled plasma mass spectrometry, although they have high detection sensitivity, but no information compared their differences for pointing which one is more suitable for detection of mercury ions in vegetable processing industry. Thus, we reviewed the advanced detection skills in analysis of Hg2+, and pointed that anisotropic characteristics of gold nanorods to achieve differential imaging under polarized light microscopy is the suitable method to analysis Hg2+. As well as, we gave a prospective for the future of this detection skill.