Method of differentiating between blood and control solutions containing a common analyte
First Claim
1. A method of distinguishing between measurements in an optical instrument of at least one analyte in a biological sample and the at least one analyte in a control solution used to test the performance of the optical instrument, the method comprising the act of adding to the control solution a labeling substance recognized by the optical instrument, wherein the labeling substance has a peak absorbance of light that is distinguishable from the absorbance of an indicator used to measure the amount of the at least one analyte present in the biological sample.
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Accused Products
Abstract
Glucose measured in blood samples is distinguished from glucose measured in the control solutions used to test the optical instruments which make such measurements. The control solutions contain a labeling substance recognized by the optical instrument to distinguish glucose measurements made of control solutions from those made of blood samples.
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Citations
14 Claims
- 1. A method of distinguishing between measurements in an optical instrument of at least one analyte in a biological sample and the at least one analyte in a control solution used to test the performance of the optical instrument, the method comprising the act of adding to the control solution a labeling substance recognized by the optical instrument, wherein the labeling substance has a peak absorbance of light that is distinguishable from the absorbance of an indicator used to measure the amount of the at least one analyte present in the biological sample.
- 5. A method of distinguishing control solutions from biological samples in optical instruments used to measure analytes in such biological samples, the method comprising the acts of adding to the control solutions a substance that labels the control solution and enables the optical instruments to identify the control solutions and distinguish the control solutions from the biological samples, the substance being distinguished from the response of an indicator used to measure the amount of analyte present in the biological sample, wherein the substance has a peak absorbance of light that is distinguishable from the absorbance of the indicator.
- 10. A method of checking the performance of an optical system used to measure at least one analyte in a biological sample, the method comprising the act of using a control solution including a labeling substance recognized by the optical instrument to verify that the instrument is operating properly, wherein the labeling substance has a peak absorbance of light that is distinguishable from the absorbance of an indicator used to measure the amount of the at least one analyte present in the biological sample.
Specification