Detection of pH

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United States of America Patent

PATENT NO 11346785
APP PUB NO 20210140892A1
SERIAL NO

17149490

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Abstract

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We disclose methods and apparatus for measuring pH in a sub-surface volume of a diffusely scattering sample. Probe light is directed to an entry region on the sample surface, and collected from a collection region on the sample surface following diffuse scattering within the sample. The collection region is spatially offset from the entry region, so that when one or more Raman spectral features are detected in the collected probe light, a pH of the sub-surface volume can be determined from the spectral features.

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Patent Owner(s)

  • UNITED KINGDOM RESEARCH AND INNOVATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gardner, Benjamin Exeter, GB 7 25
Matousek, Pavel Cumnor, GB 16 190
Stone, Nicholas Exeter, GB 12 17

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