Ishii H, Koh H
Chemical Research Institute of Non-Aqueous Solutions, Tohoku University, Katahira, Sendai-shi, Japan.
Talanta. 1977 Jul;24(7):417-20. doi: 10.1016/0039-9140(77)80122-7.
A new water-soluble porphyrin, alpha,beta,gamma,delta-tetra(3-N-methylpyridyl)porphine [T(3-MPy)P], has been synthesized, and its reaction with copper(II) studied spectrophotometrically. Sensitive methods for the determination of copper at ppM level have been established. The spectrophotometric sensitivity and relative standard deviation of the recommended procedure for copper are 0.18 ng/cm(2) (for A = 0.001) and 1.0%, respectively. The interference of 19 ions and 20 salts has been examined, and found to be minimal. The methods established could be applied to the determination of copper in water samples with satisfactory results.
一种新的水溶性卟啉，即α，β，γ，δ-四（3-N-甲基吡啶基）卟吩[T(3-MPy)P]已被合成，并通过分光光度法研究了它与铜（II）的反应。已建立了测定百万分之一级铜的灵敏方法。所推荐的铜测定方法的分光光度灵敏度和相对标准偏差分别为0.18 ng/cm²（A = 0.001时）和1.0%。已考察了19种离子和20种盐的干扰，发现干扰极小。所建立的方法可应用于水样中铜的测定，结果令人满意。
