论文部分内容阅读
本文研究了表面活性剂(以CTMAB为例)对Cr(Ⅵ)-硝基苯基荧光酮(NO_2-PF)显色反应的影响,发现CTMAB对此类显然体系有较强的增敏作用。着重探讨了Cr(Ⅵ)-οNO_2-PF-CTMAB显色反应的机理,认为在pH4.7～6.6实验条件下,Cr(Ⅵ)与ο-NO_2-PF之间是络合反应。
In this paper, the effects of surfactant (CTMAB) on the color reaction of Cr (Ⅵ) -nitrophenylfluorone (NO_2-PF) were studied. It was found that CTMAB had a strong sensitizing effect on this apparent system. The mechanism of chromogenic reaction of Cr (Ⅵ) -οNO_2-PF-CTMAB was discussed emphatically. It is believed that the complexation reaction between Cr (Ⅵ) and ο-NO_2-PF at pH4.7 ~ 6.6 was studied.