广州市蔬菜中硒含量特征分析  

Analysis of Selenium Contents in Vegetable in Guangzhou City

作　　者：余光辉[1] 温琰茂[1] 张磊[1] 何树悠[1] 

机构地区：[1]中山大学环境科学与工程学院,广东广州510275

出　　处：《农业环境科学学报》2007年第3期1045-1048,共4页Journal of Agro-Environment Science

基　　金：广东省重点科技资助项目(2KM06505S);广东省环保局科技攻关资助项目(026-423009)

摘　　要：通过酸消解,原子荧光-氢化物发生法测定了广州市部分市售蔬菜中硒的含量,由标准物质(GBWZ19001—94)和回收率控制检测质量。结果表明,不同蔬菜中硒含量有较大差异,含量范围为1.8～78.9μg·kg-1,平均含量为15.8μg·kg-1,不同类型蔬菜中硒含量变化特征是:菌类(46.0!g·kg-1±31.1μg·kg-1)>豆类(31.6μg·kg-1±17.5μg·kg-1)>葱蒜类(8.1μg·kg-1±3.3μg·kg-1)>瓜类(6.8μg·kg-1±2.6μg·kg-1)>叶菜类(5.8μg·kg-1±2.8μg·kg-1)>根茎类(5.1μg·kg-1±2.2!g·kg-1)>茄类(4.7μg·kg-1±4.2μg·kg-1)。Selenium content in vegetables from Guangzhou city, Guangdong province, was determined after acid digestion by hydride generation atomic fluorescent spectrometry. All vegetables were sampled from supermarkets and terminal markets. Accuracy was assured using standard reference material （GBWZ19001-94） and recovery experiments. A wide range of selenium content（ 1.8-78.9 μg·kg^-1） was found among the various vegetables, the mean selenium content in vegetables was 15.8 μg·kg^-1. The selenium content in mushroom was obviously higher than that in the other vegetables, and followed the order, mushroom （46.0 μg·kg^-1±31.1μg·kg^-1）〉legume（31.6 μg·kg^-1±17.5 μg·kg^-1）〉bulb （8.1 μg·kg^-1±3.3 μg·kg^-1）〉gourds（6.8 μg·kg^-1±2.6 μg·kg^-1）〉leaf（5.8 μg·kg^-1±2.8 μg·kg^-1）〉tuber（5.1 μg·kg^-1±2.2 μg·kg^-1） 〉 Solanaceous （4.7μg·kg^-1±4.2 μg·kg^-1）. The content in vegetable was obviously than lower the tolerance limit of selenium in foods （vegetable, 100 μg·kg^-1） in China （GB13105-91）. The resident of Guangzhou city intakes vegetable 313.8 g· d^-1, and intakes selenium 4.96 μg·kg^-1 from vegetable.

关 键 词：广州 蔬菜 硒 含量 

分 类 号：X836[环境科学与工程—环境工程]