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standard alloy samples
相关语句
  合金标样
     Preparation of Standard Alloy Samples for XRF and Application.Ⅰ.Analysis of Hot Galvanizing alloy
     XRF法用合金标样的研制及应用研究 Ⅰ.热镀锌合金分析
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  相似匹配句对
     Standard
     标准
短句来源
     Which is the standard?
     采用什么标准评价?
短句来源
     The alloy ?
     所制备的聚乙烯原位合金颗粒形貌好、粒径大且均匀、孔隙率高。
短句来源
     Discussion the standard of alloy tool steels
     合金工具钢标准探讨
短句来源
     DEVELOPMENT OF Fe-C ALLOY STANDARD SAMPLES FOR EPMA
     电子探针分析用标样——Fe-C合金标样组的研制
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It has been found that purple complex of Cr~(6+) with diphenylcarbazide could produce sensitive polaro-graphic wave at -0.2V (vs. SCE) in H2SO4-H3PO4 medium. Linear relationship between secondary derivative wave height and concentration of Cr6+ could be obtained in the range of 0.004-0.25mg/L. The detection limit was 0.002mg/L. The method has been applied to determination of total chromium in environmental water and standard alloy sample. The results were in good agreement with those obtained by other...

It has been found that purple complex of Cr~(6+) with diphenylcarbazide could produce sensitive polaro-graphic wave at -0.2V (vs. SCE) in H2SO4-H3PO4 medium. Linear relationship between secondary derivative wave height and concentration of Cr6+ could be obtained in the range of 0.004-0.25mg/L. The detection limit was 0.002mg/L. The method has been applied to determination of total chromium in environmental water and standard alloy sample. The results were in good agreement with those obtained by other methods.

在硫磷混酸介质中,Cr~(6+)与二苯卡巴肼反应生成的紫红色配合物,在-0.2V处产生一灵敏极谱波,其2次导数的波高与Cr~(6+)浓度在0.004~0.25mg/L范围之间呈线性关系,检出下限为0.002mg/L。此法应用于环境水样及合金标样中总铬的测定,结果与其他测定方法基本吻合。

 
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