CAJ | 학술논문

研究了Zn（Ⅱ）一SCN--RhB显色反应体系，建立了分光光度法测定药物中微量Zn（Ⅱ）的新方法．结果表明，在HAc—NaAc缓冲介质中，Zn（Ⅱ）一SCN--RhB离子缔合物在555nm处有一较强的吸收峰．在最佳实验条件下，Zn（1I）的质量浓度在0．080～0．80big·mL^1的范围内服从比尔定律，其表观摩尔吸收系数￡为5．5×10^4L·mol^-1·cm^-1．该方法直接用于测定药物制剂中痕量锌含量，结果较满意．
연구료Zn（Ⅱ）일SCN--RhB현색반응체계，건립료분광광도법측정약물중미량Zn（Ⅱ）적신방법．결과표명，재HAc—NaAc완충개질중，Zn（Ⅱ）일SCN--RhB리자체합물재555nm처유일교강적흡수봉．재최가실험조건하，Zn（1I）적질량농도재0．080～0．80big·mL^1적범위내복종비이정률，기표관마이흡수계수￡위5．5×10^4L·mol^-1·cm^-1．해방법직접용우측정약물제제중흔량자함량，결과교만의．
A new spectrophotometric method for the determination of Zn （Ⅱ） in medicaments was developed by aid of Zn （Ⅱ）- SCN-RhB system. The results showed that the maximum absorption wavelength of ion-association complex was at 555 nm. Under the optimum experimental conditions, the relationship between the absorbance at 555 nm and Zn （I1） content in 0. 080 - 0.80 μg · mL^-1 conformed to Beer＇s law and the apparent mole coefficient was 5.5）〈 10^4 L· mol^-1 cm^-1 This method can be applied in determine trace zinc content in medicaments with satisfactory results.