钴(Ⅱ)、镍(Ⅱ)-二甲酚橙多元络合物的光谱特性研究  

STUDY ON SPECTROMETRIC CHARACTERISTICS OF MULTI-COMPONENT COMPLEXES OF Co(Ⅱ),Ni(Ⅱ) AND XYLENOL ORANGE

作　　者：杨保民[1] 李智[1] 张锦柱[1] 

机构地区：[1]昆明理工大学理学院,昆明650093

出　　处：《理化检验（化学分册）》2005年第11期840-842,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：研究了Co(Ⅱ)、Ni(Ⅱ)-NH3-XO混配络合物和Co(Ⅱ)、Ni(Ⅱ)-NH3-XO-CTMAB多元络合物的形成条件及吸收光谱特性,结果表明,在pH 9.5的氨性缓冲溶液中,[NH3]/[XO]值在100～400范围内所形成的钴、镍多元络合物的最大吸收波长分别为530和590 nm,钴的多元络合物在0～2.0 mg·L-1、镍的多元络合物在0～2.6 mg·L-1范围内符合比耳定律,相对标准偏差分别为2.1%和1.9%.The formation conditions and spectroscopic characteristics of the mixed complex Co（ Ⅱ ）-Ni（ Ⅱ）- NH3-XO, multi-component complexes CO （Ⅱ）-NH3-XO-CTMAB and Ni （Ⅱ）-NH3-XO-CTMAB were studied. Experimental results showed that the absorption peaks of the multi-component complexes for CO（Ⅱ ） and Ni（Ⅱ）, which were formed in medium of pH 9.5 buffer in [NH3]/[XO] ratio of 100-400, were at wavelengths of 530 nm and 590 run, respectively. Beer＇s law was obeyed in range of 0-2. 0 mg ·L^-1 and 0-2.6 mg · L^-1 , for the multicomponent complexes of CO（ Ⅱ ） and Ni（ Ⅱ ） respectively.

关 键 词：钴 镍 二甲酚橙 十六烷基三甲基溴化铵 混配络合物 多元络合物 光谱特性 

分 类 号：O657.31[理学—分析化学]