在铍试剂Ⅱ存在下以meso-四-(4-三甲铵苯基)卟啉吸光光度法测定痕量铁

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (12): 1080.

在铍试剂Ⅱ存在下以meso-四-(4-三甲铵苯基)卟啉吸光光度法测定痕量铁

张传铀, 姚兴东, 程介克

武汉大学分析化学研究室

收稿日期:1984-10-16 出版日期:1985-12-24 发布日期:1985-12-24
基金资助:
中国科学院科学基金

Spectrophotometric Determination of Trace Amounts of Iron with meso-Tetrakis-(4-Trimethylammoniumphenyl)-porphine under the Existence of BeryllonⅡ

Zhang Chuanyou, Yao Xingdong, Cheng Jieke

Department of Chemistry, Wuhan University, Wuhan

Received:1984-10-16 Online:1985-12-24 Published:1985-12-24

摘要/Abstract

摘要： 野村俊明等曾研究过四苯卟啉三磺酸(TPPS₅)与Fe(Ⅱ)的显色反应。由于反应速度太慢,需在沸水浴上加热150分钟以上,且共存离子严重影响测定,故未能用于实际样品分析。

Abstract: The complexing reaction of Fe(Ⅱ)with meso-tetrakis(4-trimethylammoniumphe-nyl) porphine [T(4-TAP)P] has been studied.It was found that the reaction can be accelarated by some reagents, such as beryllon Ⅱ etc,and completed in 10-15min at 100℃ and pH4.5 The complex has an absorption peak at 395nm with a molar absorptivity of 1.3×10⁵.Beer's law is obeyed for Fed) in the range of 0-4.5μg/25ml.The interference ions can be separated by extracting Fe(Ⅲ) with MIBK.The high sensitive method has been applied to the determination of trace amounts of iron in some samples.

TrendMD:

张传铀, 姚兴东, 程介克. 在铍试剂Ⅱ存在下以meso-四-(4-三甲铵苯基)卟啉吸光光度法测定痕量铁. 高等学校化学学报, 1985, 6(12): 1080.

Zhang Chuanyou, Yao Xingdong, Cheng Jieke . Spectrophotometric Determination of Trace Amounts of Iron with meso-Tetrakis-(4-Trimethylammoniumphenyl)-porphine under the Existence of BeryllonⅡ. Chem. J. Chinese Universities, 1985, 6(12): 1080.