Measurement of seawater pCO(2) using a renewable-reagent fiber optic sensor with colorimetric detection

A new method for measuring the partial pressure of carbon dioxide in seawater is presented. The sensor measures light intensity at the absorbing wavelengths of a colorimetric acid-base indicator that is continuously delivered to the fiber tips through capillary tubing.

Saved in:
Bibliographic Details
Published inAnalytical chemistry (Washington) Vol. 65; no. 4; p. 331
Main Author DeGrandpre, Michael D
Format Journal Article
LanguageEnglish
Published Washington American Chemical Society 15.02.1993
Subjects
440600 - Optical Instrumentation- (1990-)
540320 - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-)
ABSORPTION SPECTROSCOPY
BLOOD VESSELS
BODY
CAPILLARIES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARDIOVASCULAR SYSTEM
CHALCOGENIDES
DYES
ENVIRONMENTAL SCIENCES
EVALUATION
FIBER OPTICS
FLUID MECHANICS
HYDRODYNAMICS
HYDROGEN COMPOUNDS
MEASURING INSTRUMENTS
MECHANICS
ORGANS
OTHER INSTRUMENTATION
OXIDES
OXYGEN COMPOUNDS
PARTIAL PRESSURE
PH VALUE
SEAWATER
Sensors
SPECTROSCOPY
TEMPERATURE DEPENDENCE
WATER
Online AccessGet full text

Cover

More Information
Summary:A new method for measuring the partial pressure of carbon dioxide in seawater is presented. The sensor measures light intensity at the absorbing wavelengths of a colorimetric acid-base indicator that is continuously delivered to the fiber tips through capillary tubing.
Bibliography:FG02-92ER61437
ISSN:0003-2700
1520-6882
DOI:10.1021/ac00052a005