Device for optical measuring of physical dimensions and material concentrations
First Claim
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1. A device for optical measurement of a particle concentration comprising:
- means for introducing particles;
a membrane;
at least one indicator material defining an indicator space, said indicator material emitting light upon light-excitation; and
a reagent which reacts with said particles to form an intermediate species, said intermediate species effecting said emitting of light from the indicator material, said reagent defining a reagent space;
wherein said at least one indicator material and said reagent are both covalently bound to said membrane.
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Abstract
An optode designed to prevent washing away of the indicator and reagent from a membrane is located within an optical device that measures substance concentrations. The reagent and indicator materials are covalently bound on the membrane. The membrane can be a polysaccharide, especially cellulose, an acid glycol ester, or it can contain silicon. The indicator and/or reagent can be covalently bound to the membrane by a bridge molecular, particularly a multifunctional aldehyde, glutaraldehyde or a silane.
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17 Claims
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1. A device for optical measurement of a particle concentration comprising:
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means for introducing particles; a membrane; at least one indicator material defining an indicator space, said indicator material emitting light upon light-excitation; and a reagent which reacts with said particles to form an intermediate species, said intermediate species effecting said emitting of light from the indicator material, said reagent defining a reagent space; wherein said at least one indicator material and said reagent are both covalently bound to said membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification