Ph sensor for indicating the ph of a sample, the fabrication...

Details Ph sensor for indicating the ph of a sample, the fabrication... Ph sensor for indicating the ph of a sample, the fabrication...

G - Physics

01

N

G01N 21/80 (2006.01)

Patent

CA 2380925

A pH sensor for the visual or optical indication of the pH of a sample. The pH sensor includes a hydrophilic, optionally intrinsically charged or neutral, synthetic membrane and at least one pH indicator dye immobilized thereto, so as to prevent appreciated bleeding of the at least one indicator dye from the synthetic membrane upon immersion in an aqueous liquid.

L'invention concerne un détecteur de pH servant à fournir une indication visuelle ou optique sur le pH d'un échantillon. Ce détecteur de pH comprend une membrane synthétique hydrophile, voire chargée ou neutre, et au moins un colorant indicateur de pH immobilisé sur cette membrane afin d'empêcher la libération dudit colorant indicateur à partir de la membrane synthétique lorsque celle-ci est immergée dans un liquide aqueux.

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