Optochemical sensor
First Claim
Patent Images
1. An optical sensor configuration comprising:
- an optical sensor including a polymer matrix, the matrix including a luminescence indicator contained in said matrix wherein said optical sensor comprises at least one agent capable of deactivating singlet oxygen, and a transparent carrier, a light source for exciting the luminescence indicator, and a detector for determining at least one optical property of said luminescence indicator in the presence of a sample.
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Abstract
There is disclosed an optical sensor including a matrix containing a luminescence indicator whose luminescence may be quenched by oxygen. The optical sensor contains at least one agent capable of deactivating singlet oxygen and has an enhanced stability relative to oxygen.
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Citations
22 Claims
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1. An optical sensor configuration comprising:
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an optical sensor including a polymer matrix, the matrix including a luminescence indicator contained in said matrix wherein said optical sensor comprises at least one agent capable of deactivating singlet oxygen, and a transparent carrier, a light source for exciting the luminescence indicator, and a detector for determining at least one optical property of said luminescence indicator in the presence of a sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An optical sensor comprising:
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an optical sensor including a polymer matrix, a luminescence indicator contained in said matrix wherein said matrix comprises at least one agent capable of deactivating singlet oxygen, and a transparent carrier.
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21. A method for determining an analyte in a gaseous liquid or sample which method comprises:
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providing an optical sensor including a polymer matrix, a luminescence indicator contained in said matrix and exhibiting a luminescence capable of being quenched by oxygen thus forming singlet oxygen, and at least one agent capable of deactivating singlet oxygen for stabilizing said luminescence indicator and said matrix, providing a light source for generating light for exciting said luminescence indicator, directly contacting said sample with said sensor, and providing measuring means for measuring at least one optical property of said luminescence indicator.
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22. A method for determining an analyte contained in a gaseous sample, which method comprises:
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providing an optical sensor including a polymer matrix, a luminescence indicator contained in said matrix and exhibiting a luminescence capable of being quenched by oxygen thus forming singlet oxygen, and at least one agent capable of deactivating singlet oxygen for stabilizing said luminescent indicator and said matrix, and a transparent carrier, providing a light source for generating light for exciting said luminescence indicator, indirectly contacting said sample with said sensor and determining the presence of the analyte, and providing measuring means for measuring at least one optical property of said luminescence indicator.
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Specification