A rapid birefringence method for measuring suspended CaCO3 concentrations in seawater

The extreme birefringence of calcium carbonate (CaCO3) relative to other major components of marine particulate matter provides a basis for making optical in situ measurements of particulate inorganic carbon (PIC) in seawater. This concept was tested with a benchtop spectrophotometer equipped with a...

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Veröffentlicht in:	Deep-sea research. Part I, Oceanographic research papers Oceanographic research papers, 2002, Vol.49 (1), p.197-210
Hauptverfasser:	GUAY, Christopher K. H, BISHOP, James K. B
Format:	Artikel
Sprache:	eng
Schlagworte:	Calcium Carbon Earth, ocean, space Exact sciences and technology External geophysics Geophysics. Techniques, methods, instrumentation and models Instruments Oceanography Physical and chemical properties of sea water Physics of the oceans
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Beschreibung
Zusammenfassung:	The extreme birefringence of calcium carbonate (CaCO3) relative to other major components of marine particulate matter provides a basis for making optical in situ measurements of particulate inorganic carbon (PIC) in seawater. This concept was tested with a benchtop spectrophotometer equipped with a 1- and 10-cm path length sample cell and modified with linear polarizers to measure the birefringence of suspended particles.
ISSN:	0967-0637 1879-0119
DOI:	10.1016/s0967-0637(01)00049-8