作者：刘丹赤1, 邵长明2
作者单位：1. 山东省日照职业技术学院, 山东 日照 276826;
2. 山东省日照港(集团)有限公司, 山东 日照 276826
关键词：鱼; 重金属; 微波消解; ICP-AES; 分布
摘要：
以微波消解预处理样品,用ICP-AES法测定了市场具有代表性的食用鱼类的Cu,Zn,Cd,Pb,Cr和Ni六种重金属的含量。结果表明,鱼类不同组织器官对各种重金属积累能力明显不同,生命必需元素Zn、Cu的含量较高,且主要存在于肝脏和内脏中;有毒重金属元素Cd,Pb,Cr和Ni主要分布于鳞片、鳃中,其食用部分中各重金属含量都较低,可以安全食用。
Assessment of contents of heavy metals in fish body and its regular distributed patter
LIU Dan-chi1, SHAO Chang-ming2
1. Rizhao Vocational Technical College, Rizhao 276826, China;
2. Rizhao Port Authority, Rizhao 276826, China
Abstract: The paper demonstrated the determination of concentrations of the five metal elements(Cu,Zn,Cd,Pb,Cr) in same representative species of commercial fishes.The contents of the five metal elements in the body of fish were determined by ICP-AES after digesting by microwave heating.The recoveries of the elements ranged mostly from 91% to 101% and the RSDs were within 3%.The investigation revealed that the contents of the heavy metals in various species and the distributions of the heavy metals in various organs and tissues of the fishes were quite different.Life essential element Zn and Cu content are higher and mainly exists in the liver and the internal organs.But toxic metals mainly are accumulated in scales and gills.Based on the investigation,an evaluation was made for safety of edible fishes.
Keywords: Fish; Heavy metals; Concentration; ICP-AES; Distribution
2007, 33(4): 121-122132 收稿日期: 2007-1-9;收到修改稿日期: 2007-3-20
基金项目:
作者简介: 刘丹赤(1973-),女,讲师,硕士研究生,研究方向:分析化学。
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