摘要
采用电感耦合等离子体质谱仪(ICP-MS)法测定了浙江省10个县(市、区)香菇中Cu,Fe,Zn,Cr,Ni,Se和Mn等7种微量元素的含量,并进行统计分析,7种元素含量均符合正态或对数正态分布。其背景值分别是Zn 8.6029 mg·kg-1,Fe 5.3845 mg·kg-1,Mn 2.2159 mg·kg-1,Cu 1.0912 mg·kg-1,Se 0.0473 mg·kg-1,Cr 0.0056 mg·kg-1,Ni 0 mg·kg-1。结果表明:7种微量元素含量存在区域差异和总体正相关性;与一般蔬菜相比,Zn含量是其3～5倍,Cu含量是其1～2倍,Mn和Se含量相当;Ni和Cr的含量远低于国家食品安全标准。
The content of 7 kinds of trace elements , Cu, Fe, Zn, Cr, Ni, Se and Mn, were determined by ICP-MS in 10 counties （cities, districts） of Zhejiang province.The statistical analysis showed that the content of 7 kinds of elements fitted normal or lognormal distribution .The background values were 8.6029 mg· kg^-1 for Zn, 5.3845 mg· kg^-1 for Fe, 2.2159 mg· kg ^-1 for Mn, 1.0912 mg· kg -1 for Cu, 0.0473 mg· kg^-1 for Se, 0.0056 mg· kg^-1 for Cr and 0 mg· kg^-1 for Ni.It showed regional differences and overall positive correlation among the content of 7 trace elements.Compared with the ordinary vegetables , the content of Zn was 3-5 times higher, the content of Cu was 1-2 times higher , and Mn and Se content were similar .The contents of Ni and Cr were far lower than the national food safety standards .
出处
《浙江农业学报》
CSCD
北大核心
2014年第4期1078-1083,共6页
Acta Agriculturae Zhejiangensis
基金
浙江省公益性技术应用研究项目"特色果蔬安全风险因子评估及关键控制技术研究"(2014C22002)
关键词
香菇
微量元素
背景值
营养安全
Lentinus edodes
trace element
background value
nutrition security
