牡蛎、缢蛏和菲律宾蛤仔中微量元素的分析研究

Determination of Trace Elements in Oyster,Razor clam and Manila clams

采用硝酸高氯酸法消解样品,应用ICP-AES法测定了牡蛎、缢蛏和菲律宾蛤仔中Ca、Co、Cr、Cu、Fe、Mg、Mn、N、iSe、Sr、V和Zn共12种微量元素。实验结果表明,3种贝类中均含有大量的Ca、Cu、Fe、Mn、Zn、Mg,还含有Co、Cr、N i、Se、Sr和V等对人体有益的微量元素,是营养价值较高的海产品,可以作为人体补充微量元素的重要来源。

The content of12 trace elements Ca, Co, Cr, Cu, Fe, Mg, Mn, Ni, Se, Sr, V and Zn in Oyster, Razor clam and Manila clams was determined by ICP - AES using nitrifying method of nitric acid - perchloric acid. The method was simple, rapid, highly sensitive, accurate, and multi - element determination at the same time. The relative standard deviations were less than 4%, and the recoveries were 90. 3% - 109. 0%. The experiment proved that Oyster, Razor clam and Manila clams contain rich and useful trace elements which can not synthesize by human body itself. So, the there marine bivalves could be regarded as essential supplemental elements for human.