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Proceedings Paper

pH influence on near-infrared spectra of glucose
Author(s): Christopher B. Lewis; Gerard L. Cote
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Paper Abstract

The objective of this study was to determine the effect of pH on near-infrared (NIR) (2.0 - 2.5 micrometers ) spectra of glucose in phosphate buffered saline solution within a tight range of control similar to what is found in many mammalian organisms and cell cultures. It is known that the NIR water spectrum in the wavelength range (2 - 2.5 micrometers ) may be altered by pH, and it has been shown that glucose absorbance spectra do not change with pH when an equal reference pH is available. However, because the glucose absorbance spectra rides on the water spectra, changes in the spectral characteristics did occur. These effects need to be considered, in particular for single beam glucose spectra.

Paper Details

Date Published: 31 May 2000
PDF: 3 pages
Proc. SPIE 3923, Optical Diagnostics of Biological Fluids V, (31 May 2000); doi: 10.1117/12.387128
Show Author Affiliations
Christopher B. Lewis, Texas A&M Univ. (United States)
Gerard L. Cote, Texas A&M Univ. (United States)


Published in SPIE Proceedings Vol. 3923:
Optical Diagnostics of Biological Fluids V
Alexander V. Priezzhev; Toshimitsu Asakura, Editor(s)

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