MEASUREMENT OF ION CONCENTRATION IN PRESENCE OF ORGANICS

摘要

Disclosed herein are systems and methods that relate to use of ultramicroelectrodes (UME) in measurement of ion concentration in presence of one or more organic compound(s).

主权项

1. A method to measure concentration of metal ions in presence of one or more organic compounds in an aqueous medium comprising:
contacting an aqueous medium comprising metal ions and one or more organic compounds with an ultramicroelectrode (UME) in a UME cell; cleaning surface of the UME from deposition of the one or more organic compounds by passing a gas on the surface of UME, by forming a gas on the surface of UME, by mechanically cleaning the surface of UME, or combinations thereof; subjecting the UME to a set Y of one or more potential cycles causing oxidation of the metal ions in lower oxidation state to a higher oxidation state or causing reduction of the metal ions in higher oxidation state to a lower oxidation state; and measuring a steady state current thereby measuring the concentration of the metal ions.