食品汞含量分析预处理与测定技术的研究进展

The Research Progress of Determination Method of Mercury in Food

自然环境中的汞通过食物链的生物富集作用会对人类产生毒害作用,人体摄入汞的来源主要是饮食和呼吸,所以食品中的汞含量的准确定量检测十分必要。样品预处理是食品汞含量检测的必备步骤,主要包括酸/碱溶剂消解萃取、微波辅助萃取、固相萃取、固相微萃取以及浊点萃取技术等。汞的检测方法包括原子荧光、原子吸收、分光光度法、电感耦合等离子体发射光谱法/质谱法以及气相色谱-光谱/质谱联用技术等。食品中汞含量的检测方法研究在朝着简便、灵敏、高效、环境污染小等方向发展。

The mercury in environment can be toxic to human through food chain’s bioaccumulation.Mercury might be ingested by eating and breathing,therefore,it’s of important to detect the food mercury.Sample preparation is an essential step for mercury detecting,mainly including the acid/alkali digestion solvent extraction,microwave assisted extraction,solid phase extraction,solid phase microextraction,cloud point extraction technology,etc.Determination methods include atomic fluorescence spectroscopy,atomic absorption spectrophotometry,inductively coupled plasma atomic emission spectrometry/mass spectrometry and gas chromatography-mass spectrum/mass spectrometry technology,etc.The food mercury determination is desired to be simple,efficient,high sensitivity,and less environmental pollution.