The Role of Chemically Modified Surfaces in the Construction of Miniaturized Analytical Instrumentation Iowa State University

Format:

Conference/Event

Author/Creator:

Porter, M. D. (Marc D.), author.

Conference Name:

International Conference On Environmental Systems (1993-07-12 : Colorado Springs, Colorado, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1993

Summary:

This paper describes the development of a thin-film optical sensor for measuring pH. The indicator behaves as a polyprotic acid with differing optical properties in each of its chemical forms. Together, these properties facilitate the development of an internally calibrated sensor by calculating the ratios of the absorption maximas for each form of the indicator. The covalent immobilization procedure developed demonstrated long term stability of 4 months without recalibration

Notes:

Vendor supplied data

Publisher Number:

932207

Access Restriction:

Restricted for use by site license