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Electrochemical and optical behavior of 8-hydroxypyrene-1,3,6-trisulfonic acid at optically transparent electrodes.

Authors
Andrews-RN; Seliskar-CJ; Heineman-WR
Source
Electroanalysis 2010 Jul; 22(14):1557-1565
NIOSHTIC No.
20037367
Abstract
The objective of this work is to elucidate the electrochemical and corresponding optical properties of 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS), using optically transparent electrodes, thereby deducing its usefulness as a model compound for spectroelectrochemical sensor development. Three pH levels were tested to determine optimal solution conditions for optical signal modulation. The electrolysis of HPTS follows an ECE mechanism, presumably resulting in the formation of a dihydroxy/dione derivative, and modulates the optical response at 405 and 460 nm wavelengths for pH 5 solutions. HPTS is a good candidate for spectroelectrochemical sensor research.
Keywords
Electrochemical-analysis; Electrochemical-analysis; Electrochemical-properties; Electrochemical-reactions; Electrochemistry; Electrolytic-analysis; Environmental-health; Exposure-assessment; Exposure-levels; Exposure-methods; Laboratory-testing; Occupational-health; Optical-analysis; Optics; Sensory-perceptual-processes; Sensory-thresholds; Workplace-studies; Author Keywords: 8-Hydroxypyrene-1,3,6-trisulfonic acid; HPTS; Cyclic voltammetry; Optically transparent electrodes; Absorbance; Sensors
CODEN
ELANEU
Publication Date
20100701
Document Type
Journal Article
Email Address
william.heineman@uc.edu
Fiscal Year
2010
NTIS Accession No.
NTIS Price
Issue of Publication
14
ISSN
1040-0397
NIOSH Division
DART
Source Name
Electroanalysis
State
OH
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