First Advisor

David K. Roe

Date of Publication

1978

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Chemistry

Department

Chemistry

Language

English

Subjects

Arsenic -- Analysis, Catechol

DOI

10.15760/etd.2843

Physical Description

1 online resource (66 p.)

Abstract

There is not, at this time, a simple method for the simultaneous determination of As (III) and As (V) at trace levels. The development of such as method is needed, as the toxicities of these two species differ so greatly.

As (III) and As (V) are polarographically reducible in the presence of excess catechol, but the wave produced by As (V) is depended on time, pH and catechol concentration as well as As (V) concentration. In order to understand this behavior, determination of formation constants for any complex species present were needed to identify which species is electroactive. The literature to date on the subject of As (V) – catechol compounds has shown that there is not a thorough understanding of what species are present and what their stabilities are.

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Comments

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Persistent Identifier

http://archives.pdx.edu/ds/psu/17225

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