江西农业大学学报Issue(1)：140-145,6.DOI:10.13836/j.jjau.2016020
ICP－MS法测定大菱鲆饲料中微量元素的含量
Determination of Trace Elements in Scophthalmus maximus.L Feed by ICP-MS
摘要
Abstract
A total of 13 commercial feeds and 4 fresh frozen trash fish( TF) samples were collected from 10 turbot( Scophthalmus maximus.L) farms located in Huludao of Liaoning,then the contents of 11 trace ele-ments i.e.Cu,Zn,Fe,Mn,Co,Se,Cr,Pb,Cd,Hg and As in the samples were determined by ICP-MS method. The results showed that the mean trace element concentrations in the compound feed followed the order:Fe (719 mg/kg)>Zn(122 mg/kg)>Mn(32.4 mg/kg) >Cr(8.35 mg/kg)>Cu(7.31 mg/kg)>Se(1.48 mg/kg)>Pb(0.503 mg/kg)>Cd(0.462 mg/kg)>Co(0.422 mg/kg)>Hg(0.036 mg/kg).The levels of the analyzed elements in compound feeds were significantly higher than those in TF( P<0.01) except for Cr.Evaluation of the feed quality suggested that trace element levels in compound feed were relatively stable,the contents of potentially toxic elements i.e.Pb,Cd,Hg,As were all below the safety limits for aquafeeds and the lowest levels for most essential elements were higher than the recommended dose.Compared with TF,these results show that the compound feed could provide more sufficient essential elements for turbot growth,however,there were three elements i.e.Fe,Cr,Se exceeded the maximum limits.关键词
ICP-MS/大菱鲆饲料/微量元素/饲料质量Key words
ICP-MS/turbot feed/trace element/feed quality分类
农业科技引用本文复制引用
白淑艳,陈中祥,覃东立,汤施展,张芳梅,杜宁宁,吴松,牟振波..ICP－MS法测定大菱鲆饲料中微量元素的含量[J].江西农业大学学报,2016,(1):140-145,6.基金项目
农业部农产品质量安全风险评估财政专项（ GJFP201501001，GJFP201501004）Project supported by the special fund for quality risk assessment on Agro-products of Chinese Agriculture Ministry （）
