【摘要】 <正> 武汉大学合成了新型显色剂—对乙酰基偶氮胂并研究了与钍、稀土的显色反应。偶氮苯基的对位引入了乙酰基助色基团,改善了原偶氮胂Ⅲ的某些特性。本文研究了铀(Ⅳ)与该试剂的显色反应。反更多还原

【Abstract】 In this paper the reaction of p-acetyl-arsenazo for determination of uranium（Ⅳ） was studied. The optimum conditions were tested in the presence of Fe（11）-CyDTA in 3 N hydrochloric acid medium. With this procedure the levels of tolerence limit of diverse ions as ZrO²⁺, F^-, W⁶⁺, MO⁶⁺, SO₄^2- and PO₄^2- were higher than those with arsenazoⅢ.更多还原