Derivative pulse polarographic study of murexide and its complex with zinc ions

Abstract

Murexide yields a well-defined derivative pulse polarographic peak in concentration larger than 1.7X10**-4M, but a post peak in adsorption character appears in concentration less than 1.7X10**-4M. When murexide concentration is 1.6X10**-5M, the main peak decreases with increasing pH and turns into a negative one after pH 5.48. It can be suppressed apparently by gelatin. This is a new adsorption plenomenon showing the complexity of murexide adsorption. Murexido may form complex with zinc ion. They together yield five peaks and show the adsorption phenonmenon. The stability constant of zinc-murexide complex is calculated to be logβ=3.4 at given conditions (pH=5.95, 25`C). The mechanism of complex formation and adsorption process is discussed.

Key words: ZINC COMPLEX, STABILITY CONSTANT, PULSE POLAROGRAPHY, MUREXIDE, ANALYSIS

CLC Number:

Cite this article

WANG ERKANG;YU ZEMU;CHEN RUILIN. Derivative pulse polarographic study of murexide and its complex with zinc ions[J]. Acta Chimica Sinica, 1983, 41(9): 823-828.

Export EndNote|Reference Manager|ProCite|BibTeX|RefWorks

[1]	Rongjie Yang, Lin Zhou, Bin Su. Selective Detection of Vitamins A and C based on Covalent Organic Framework Modified Electrodes^★ [J]. Acta Chimica Sinica, 2023, 81(8): 920-927.
[2]	Xue Ni, Kaili Xin, Zhengli Hu, Cuiling Jiang, Yongjing Wan, Yi-Lun Ying, Yi-Tao Long. A Time-Series Signal Classification Algorithm and Its Application to Nanopore Ionic Current Signal Identification^★ [J]. Acta Chimica Sinica, 2023, 81(8): 912-919.
[3]	Hairu Li, Ceng Zhang, Sidian Li. Study on the Regulation of Alkali-earth Metal Be_n (n=1~3) on the Structure of B₁₂ Clusters [J]. Acta Chimica Sinica, 2022, 80(7): 888-895.
[4]	Xiaozhi Wang, Yao Chen, Hailong Wu, Tong Wang, Jian Yang, Haiyan Fu, Xiaolong Yang, Xufu Li, Yujie Ding, Ruqin Yu. Study on the Origin Traceability of Atractylodes macrocephala Koidz. and Its Correlation with Soil Based on Mineral Elements [J]. Acta Chimica Sinica, 2022, 80(2): 159-167.
[5]	Wang Mingyuan, Cui Xiaoyu, Cai Wensheng, Shao Xueguang. Temperature-Dependent Near-Infrared Spectroscopy for Sensitive Detection of Glucose [J]. Acta Chimica Sinica, 2020, 78(2): 125-129.
[6]	Li Wuyang, Xu Lejin. Research Methods for the Degradation Mechanism of Organic Pollutants in Wastewater [J]. Acta Chim. Sinica, 2019, 77(8): 705-716.
[7]	Chi Jingyuan, Li Jing, Ren Shaokang, Su Shao, Wang Lianhui. Construction and Application of DNA-two-dimensional Layered Nanomaterials Sensing Platform [J]. Acta Chimica Sinica, 2019, 77(12): 1230-1238.
[8]	Ye Changqing, Chen Shuoran, Li Fengyu, Ge Jie, Yong Peiyi, Qin Meng, Song Yanlin. Research Progress of High-performance Multi-analyte Recognitions and Multivariate Analysis [J]. Acta Chimica Sinica, 2018, 76(4): 237-245.
[9]	Zhu Xuewei, Cui Xiaoyu, Cai Wensheng, Shao Xueguang. Temperature Dependent Near Infrared Spectroscopy for Understanding the Hydrogen Bonding of Amines [J]. Acta Chim. Sinica, 2018, 76(4): 298-302.
[10]	Lin Yao, Ying Yilun, Gao Rui, Wang Huifeng, Long Yitao. Analysis of Single-entity Anisotropy with a Solid-state Nanopore [J]. Acta Chim. Sinica, 2017, 75(7): 675-678.
[11]	Wang Yongjie, Wang Wei. Single Nanoparticle Sensing Based on Optical Microscopy [J]. Acta Chim. Sinica, 2017, 75(11): 1061-1070.
[12]	Tao Junjun, Chen Shuai, Yao Fengqi, Wang Haihui. A Study of Plant Char Oxidation: the Parallel Reactions and Their Chemical Kinetics [J]. Acta Chim. Sinica, 2016, 74(1): 81-88.
[13]	Jiang Long, Cheng Bingchuan, Li Yu. Effect Analysis of Substituent Characteristics of PBDEs on Its Ah Receptor Binding Affinities [J]. Acta Chimica Sinica, 2014, 72(6): 743-750.
[14]	Liu Xingfen, Cai Xiaohui, Huang Yanqin, Shi Lin, Fan Quli, Huang Wei. Biotinylated Water-Soluble Conjugated Polymers：Synthesis and the Application in Biological Analysis [J]. Acta Chimica Sinica, 2014, 72(4): 440-446.
[15]	Chen Fangjiao, Su Yue, Guo Yinlong. Post-target Analysis for the Volatile Compounds from Salty Alpinia oxyphyllae Fructus with Headspace-gas Chromatography-quadrupole/time of Flight Mass Spectrometry [J]. Acta Chimica Sinica, 2014, 72(1): 95-104.

紫脲酸铵及其锌配合物的脉冲极谱