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pb and cu
    Determination of trace Pb and Cu in food with microwave dispelling-atomic absorption spectrophotometry
    微波消化──原子吸收光谱法测定食品中铅和铜
    SEPARATION AND DETERMINATION OF CyDTA CHELATES OF Bi Fe Pb and Cu BY REVERSED-PHASE IONPAIR CHROMATOGRAPHY
    铋铁铅和铜-CyDTA螯合物的反相离子对色谱分离和测定
    Determination of Cd,Pb and Cu in biological by anodic Stripping Voltammetry
    阳极溶出伏安法测定生物体中镉、铅和铜
    Pb and Cu Levels in Samples of Tea Marketed in Beijing
    北京市售茶叶中的铅和铜含量水平分析
    Effect of Processing on the Pb and Cu Pollution of Tea
    加工过程对茶叶铅和铜污染的影响
    Results showed that Zn, Cr, Pb and Cu contents in some marine organisms in Jiaozhou Bay were higher than those in the middle Yellow Sea which were less polluted.
    结果表明,受周围污染环境的影响,该湾经济生物体内的锌、铬、铅和铜含量明显高于受排污影响较小的黄海中部海域同种生物体内的含量; 不同种类、体长和不同季节生物体内的重金属含量都有较显著差异。
    The effect of processing on the Pb and Cu pollution of tea was studied in this paper.
    研究了初制加工对茶叶铅和铜污染的影响。
    Results showed that tea processing was one of the main pollution sources of Pb and Cu. The extent of pollution was varied with the working procedure, machine and its metal composing.
    结果表明,茶叶加工是铅和铜污染的重要途径之一,但污染的程度因工序、作业方式和机具的金属组分不同而异。
    Therefore, keeping clean in workshop and regulating the metal constitution of rolling machine could reduce the Pb and Cu pollution during tea processing.
    因此,保持加工场所的清洁卫生和调整揉捻机揉筒和揉盘的金属组成是降低茶叶加工过程中铅和铜污染的有效途径。
    Soil pollution in tea garden mainly came from the contamination of Pb and Cu, and the proportion were 4.0%and 1.3%respectivdy. The Cd and Cr content in soil were lower than the pollution limit to green food producing area, and the content of Hg and As were within the criteria of non-polluted tea garden.
    茶园土壤污染主要表现为不同程度的铅和铜污染,铅和铜含量超过无公害茶园土壤环境质量标准的样品数分别占调查总样品数的4.0%和1.3%,镉、铬含量均低于绿色食品产地的土壤污染物限值,汞、砷含量则均低于无公害茶园土壤环境质量标准。
    To evaluate safety of teas sold in Beijing,57 tea samples randomly collected on Beijing market are analyzed for their Pb and Cu content by means of atomic absorption spectrometry.
    为了了解北京市售茶叶的质量安全状况,本实验利用原子吸收法对北京部分市售茶叶中的铅和铜含量水平进行了测定和分析。 57个茶叶样品随机采自北京市场。
    Pot experiments were conducted to study the effect of amendment (functionalized monolayer material, MP-MCM-41) on cole growth and the forms of heavy metals in soil polluted by Cd, Pb and Cu.
    采用盆栽试验,研究了改良剂(无机功能材料,MP-MCM-41)对重金属镉、铅和铜污染土壤油菜生长及土壤重金属各形态分布特征。
 

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