【摘要】 本文研究了Ｃｏ（１，１０－ｐｈｅｎ·）３（２＋）配合物对ＫＩＯ４氧化鲁米诺所产生的强化学发光反应．以１，１０－ｐｈｅｎ·为配位体时，Ｃｏ（Ⅱ）的检出限为８×１０（－８）ｇ／Ｌ，工作曲线响应浓度范围在１×１０（－６）～１×１０（－４）ｇ／Ｌ，测定１×１０（－４）ｇ／ＬＣｏ（Ⅱ）离子的相对标准偏差为２．５％．配合物化学发光法检测啤酒、维生素Ｂ（１２）针剂中微量Ｃｏ（Ⅱ）可获得满意结果．更多还原

【Abstract】 This paper reports a new complex chemiluminescence, i. e. luminol-IO4-catalyzed by Co(1, 10-phen.)32+ complex. Based on this catalyst a new chemiluminescence method for determining trace of Co(Ⅱ) is proposed. The detection limit is 8×10-8g/L Co(Ⅱ),the linear dynamic range is 1×10 -6～1 ×10-4’g/L Co(Ⅱ) and the variation coeffient at a cobalt concentration of 1×10 -4g/L Co(Ⅱ) is 2. 5 % (n=10). This method has been satisfactorily applied in the determination of trace cobalt ion in VITAMIN B12 samples.更多还原