期刊论文

Research into the accumulative levels about Cd,Pb in Channa argus and Siniperca chuatsi from the East Dongting Lake

中文

山东大学学报(理学版)

1671-9352

2016

51

7

137-142

10.6040/j.issn.1671-9352.0.2016.035

湖南省科学技术厅科技计划“环境变化对洞庭湖鱼类资源保育功能的影响研究”资助项目（2013SK3155）；

本校为第一机构

采用湿式消解法,并用石墨原子吸收光谱法(GF-AAS)对东洞庭湖乌鳢(Channa argus)、鳜鱼(Siniperca chuatsi)不同组织进行重金属镉(Cd)、铅(Pb)的含量测定,分析其含量分布特征及其与体长、体质量的相关性,并用单因子污染指数法和THQ法评价其污染程度与食用安全性。结果表明,重金属在鱼体内的蓄积量存在组织特异性,同一器官组织对不同重金属的蓄积量不相同(Pb的蓄积量大于Cd的蓄积量)。Cd、Pb含量在鳜鱼和乌鳢的肠道和肝胰脏中含量最高,肌肉中含量最少。相关性分析显示,除Pb含量在乌鳢组织中相关性不显著,其余均表现出较强的相关性(P < 0.05),且在鳜鱼中重金属含量与体长、体质量的相关性较显著,在...

The concentrations and distribution characteristics of Cd,Pb in the organizations of Channa argus and Siniperca chuatsi from East Dongting lake had been measured with wet digestion by Graphite Furnace Atomic Absorption Spectrophptometry( GF-AAS),and their associations with body length and body weight were also examined,and the method of single factor pollution index and THQ were used to evaluate the pollution degree and edible security. The results showed that the concentrations of the heavy metals present tissue-specific,and the concentrations and the distributions of the Cd,Pb in the same or...