鲨鱼肝油,鱼肝油中汞检测方案(测汞仪)

PAGE 1 Application Note APPN-MA-3000-FOOD-004 Total Mercury in Shark Liver Oil Using Direct Mercury Analysis BACKGROUND Shark liver oil has been used for centuries as a folk remedy to promote the healing of wounds and for respiratory tract and digestive systemproblems. It continues to be promoted worldwide as a dietary supplement for the treatment of a variety of diseases. A recent study of tigersharks from the coast of Ishigaki Island， Japan found a rapid increase in hepatic Hg concentration concurrent with the onset of maturity insharks that may arise from the continuous intake of Hg via their food， and also the slower growth of mature sharks. Bioaccumulation in sharkliver oil carries over into human populations， where it can result in mercury poisoning. Mercury is highly toxic to humans， especially becauseof its ability to damage the central nervous system. Mercury poses a particular threat to human development in utero and in early childhood.Thus， to prevent mercury poisoning， it is necessary to accurately quantify total mercury in shark liver oil supplements. REFERENCES ·WHO HP： · UNEP HP， MINAMATA CONVENTION ON MERCURY： ·FDAHP： ·Wiki： · PubMed： Mar Pollut Bull. 2008 Oct；56(10)：1774-80. doi： 10.1016 INSTRUMENT NIC MA-3000 is a dedicated direct mercury analyzer that selectively measures totalmercury by thermal decomposition， gold amalgamation and cold vapor atomic absorptionspectroscopy， on virtually any sample matrix- solid， liquid， and gas. The MA-3000 offersquick results without any tedious， time-consuming and elaborate sample preparationprocess. It is a perfect solution to today's increasing laboratory demand for easy， fast andaccurate mercury measurements.     几个世纪以来，鱼肝油一直被用作促进伤口愈合、治疗呼吸道和消化系统问题的保健药物。作为治疗多种疾病的膳食补充剂继续在世界范围内持续得到推广。    最近对来自日本石垣岛海岸的虎鲨进行的一项研究发现，随着鲨鱼开始成熟，肝脏汞浓度迅速增加，这可能是由于鲨鱼通过食物持续摄入汞所致，成熟鲨鱼的生长速度也较慢。    鲨鱼鱼肝油中的生物积累会影响到人类，导致汞中毒。    汞对人体具有高度毒性，特别是因为它能够破坏中枢神经系统。    汞对人类在子宫内和儿童早期的发育构成特别的威胁。    因此，为了预防汞中毒，有必要准确量化鲨鱼肝油补充剂中的总汞含量.NIC公司 MA-3000是一款专用的直接汞分析仪，通过热分解、金汞齐化和冷原子吸收光谱有选择地测量几乎任何样品基质(固体、液体和气体)的总汞。MA-3000提供快速测试的结果，没有任何繁琐、耗时和复杂的样品制备过程。这是一个理想的解决方案，以满足当今实验室对简单，快速和准确的汞测量的需求。