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Studies on Anion-Selective Electrodes Based on Symmetrical and Unsymmetrical Schiff Based Organic Metallic Complexe as Neutral Carrier

Author: LuoEnPing
Tutor: YuanRuo
School: Southwest China Normal
Course: Analytical Chemistry
Keywords: Symmetric and asymmetric metal complexes Ion selective electrode Neutral carrier Potential response High selectivity
CLC: O657.1
Type: Master's thesis
Year: 2005
Downloads: 41
Quote: 2
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Abstract


As one of the most important chemical sensors , ion-selective electrode device is simple , easy to operate, fast continuous monitoring , and the determination of ion activity is not a concentration , has important implications for the environment and the analysis of biological samples . The new sensor materials , in particular, the design, synthesis and application of novel selective carrier is not only an important direction of the ion-selective electrode studies , but also modern chemistry major concern . In recent years, organometallic complexes as a neutral carrier and showed anti - Hofmeister behavior of anion-selective electrode is the subject of much attention in the field of electrochemical and electrical analysis . This thesis seeks to explore the basic research of the design and synthesis of new organic metal complexes as a neutral carrier PVC solvent polymeric membrane anion-selective electrode , and the electrode is initially applied to the analysis of wastewater and drug samples as a chemical sensor . In this paper, research and research results are as follows: 1 . Asymmetric four-coordinated Schiff base cobalt , copper ( II ) , mercury ( II ) mononuclear metal complexes thiocyanate ion electrode study design , synthesis o-hydroxy benzophenone - pyrrole-2 - aldehyde o-phenylenediamine cobalt ( II ) , copper ( II ) , mercury ( II ) metal complexes , for the first time based on the three metal complexes as neutral carrier anion selective electrode potential response characteristic . The study found that the o- hydroxy benzophenone - pyrrole-2 - aldolase with as Carriers electrode showed anti - Hofmeister anion response behavior of Cu ( II ) -o-phenylenediamine , and the Thiocyanate showing excellent the potential response performance and selectivity . The use of ultraviolet spectrum technology , electrochemical impedance spectroscopy and fat-soluble ionic additives on the electrode behavior explore the response mechanism of the electrode . And electrodes used in waste water and urine analysis , consistent results and high performance liquid chromatography . Asymmetric four-coordinated Schiff base dual-core mercury - based complexes as neutral carrier highly selective iodide electrode

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CLC: > Mathematical sciences and chemical > Chemistry > Analytical Chemistry > Instrument analysis ( physics and physical chemistry ) > Electrochemical analysis
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