A method for simultaneous determination of harmful trace ele

来源：学生作业帮编辑：作业帮分类：综合作业时间：2024/07/18 22:15:54

A method for simultaneous determination of harmful trace elements in un-plasticized polyvinyl chloride (PVC-U) pipes by inductively coupled plasma atomic emission spectrometry (ICP-AES) was studied.Under the optimum condition,the method of simultaneous determination of trace elements in PVC-U popes such as Cd,Pd,Sn and Hg by inductively coupled plasma atomic emission spectrometry was established.The detection for elements are 0.007-0.17g/ml.The recoveries are 95.12%--106.00%.The relative standard deviation are 1.5%--2.9%.This method is accurate,rapid and convenient with satisfactory results.
1.总结说明其中用到的时态 2.找出其中的逻辑语法词,并说明每个词的含义 3.找出抽象名词,并指出其原型（v or n）及相关的汉语意思 4.找出被动语态,非谓语,情态动词

有害微量元素在没有增塑的聚氯乙烯（PVC-U）管材中由电感耦合等离子体原子发射光谱法（ICP-AES）同时测定的方法进行了研究.在最佳条件下,建立了电感耦合等离子体原子发射光谱法同时测定痕量元素如镉,钯,锡,汞,PVC-U,教皇.元素的检测0.007-0.17g/ml.回收率为95.12％ - 106.00％.相对标准偏差为1.5％ - 2.9％.这种方法是准确,快速,方便,结果令人满意.

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