Optical indicators based on environment sensitive fluorophors

Conference · Mon Jan 01 00:00:00 EST 1990 · American Chemical Society, Division of Environmental Chemistry, Preprints; (USA)

OSTI ID:6486147

Shakhsher, Z M; Seitz, W R ^[1]

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1. Univ. of New Hampshire, Durham, NC (USA)

The authors are interested in the development of optical indicators based on environment sensitive fluorophors. The fluorophor is immobilized on a solid substrate. Interaction with analyte modifies the fluorophor environment, leading to a shift in the distribution of emission wavelengths. Because the indicator is based on spectral shift, it is possible to relate analyte concentration to a ratio of intensities at two different wavelengths. This parameter is insensitive to instrumental drift and slow loss of indicator. Two indicator systems have been investigated. Both involve dansyl derivation, i.e., derivatives of 5-dimethylamino-1-naphthalene sulfonic acid.

• OSTI ID: 6486147
• Report Number(s): CONF-900402-; CODEN: ACEPC
• Journal Information: American Chemical Society, Division of Environmental Chemistry, Preprints; (USA), Vol. 30:1; Conference: 199. national meeting of the American Chemical Society, Boston, MA (USA), 22-27 Apr 1990; ISSN 0093-3066
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ORGANIC COMPOUNDS
EMISSION SPECTROSCOPY
FLUORESCENCE
INDICATORS
MEASURING METHODS
PROCEEDINGS
SURFACTANTS
DOCUMENT TYPES
LUMINESCENCE
SPECTROSCOPY
540310* - Environment
Aquatic- Basic Studies- (1990-)