系统地研究了Cu－铜试剂（DDTC）在石蜡相显色反应。 在HAc－NH4Ac（pH＝5.0）缓冲介质中，此显色络合物能定量被 石蜡萃取，铜量在0～40μg／50mL范围内符合比尔定律。方法应用于 铝合金中痕量铜的分析，结果良好。
In this paper, copper-diethyldithiocarbamate colour reaction in paraffin phase has been studied. In the medium of HAc-NH4Ac (pH5.0), the coloured complex of copper-diethyldithiocarbamate can be quantitatively extracted with molten paraffin. Beer's law is obeyed in the range of 0 to 40μg/50mL of copper. The method has been applied to the determination of trace copper in aluminium alloys with satisfactory results.
参考文献
| [1] | 沈玲霞;万益群.第二届国际华裔学者分析化学研讨会论文集[M].广州:暨南大学出版社,1995:A-73. |
| [2] | 吴瑞林,黄万兰.固态萃取法在贵金属分析中的应用[J].分析试验室,1988(09):34. |
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