Method For Detecting And Compensating An Underdosage Of Test Strips
First Claim
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1. A test element for use in determining the concentration of an analyte in a sample, the test element comprising:
- a test field for accepting the sample;
a first reagent in the test field, wherein said first reagent interacts with the analyte in the sample, wherein (i) the interaction between the first reagent and the analyte causes a first photometrically detectable signal to be produced when the test field is illuminated with light and (ii) the first photometrically detectable signal is a function of the concentration of the analyte in the sample; and
a second reagent in the test field, wherein the second reagent interacts with a sample matrix of the sample, wherein (i) the interaction between the second reagent and the sample matrix causes a second photometrically detectable signal to be produced when the test field is illuminated with light and (ii) the intensity of the second photometrically detectable signal is a function of the amount of the sample matrix applied to the test field.
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Abstract
The invention concerns a method for detecting an underdosage of an analytical test element and optionally for compensating the underdosage. The invention also concerns an analytical system and a test element which are suitable for detecting an underdosage.
An underdosage of the test element can be reliably detected and optionally calculated by irradiating the analytical test element in a control wavelength range. For this purpose the test element contains a control substance which interacts with the radiation in the control wavelength range as a function of the contact with the applied amount of sample.
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6 Claims
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1. A test element for use in determining the concentration of an analyte in a sample, the test element comprising:
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a test field for accepting the sample; a first reagent in the test field, wherein said first reagent interacts with the analyte in the sample, wherein (i) the interaction between the first reagent and the analyte causes a first photometrically detectable signal to be produced when the test field is illuminated with light and (ii) the first photometrically detectable signal is a function of the concentration of the analyte in the sample; and a second reagent in the test field, wherein the second reagent interacts with a sample matrix of the sample, wherein (i) the interaction between the second reagent and the sample matrix causes a second photometrically detectable signal to be produced when the test field is illuminated with light and (ii) the intensity of the second photometrically detectable signal is a function of the amount of the sample matrix applied to the test field. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification