CAPPH的合成及其光度法测定草珊瑚中微量铜

Synthesis of New Chromogenic Reagent CAPPH and Its Studies on Determining Trace Cu 2+ in Sarcandra Glabra (Thunb) Nakai

报道了新显色剂ＣＡＰＰＨ的合成及其光度测定草珊瑚中微量Ｃｕ２＋的研究．试验结果表明草珊瑚中铜含量茎部较高，根部次之，叶片最低．测定结果与原子吸收法相近．方法不仅简单。

We have synthesised the new chromogenic reagent 10 (2 carboxylphenylazo) 9 phenanthrahydroquinone,namely CAPPH,and studied the method in determining trace Cu 2+ of sarcandra Glabra (Thunb) Nakai by spectrophofometry.The results express that there is the most Cu 2+ content in stem,then in root,and the lest in leaf.Compared with atomic absorption spectrometry,the method not only is simple,and but also is accuracy.