Patent ID: 7593108

Claim:
A method of determining an analyte concentration in a sample using infrared spectroscopy, the method comprising: providing a source of infrared radiation comprising a plurality of wavelengths and a detector responsive to infrared radiation at the plurality of wavelengths; placing a sample in a sample element having a shape; irradiating the sample element with infrared radiation from the source after the sample has been placed in the sample element; detecting with the detector at least a portion of the infrared radiation transmitted through the sample element and the sample; determining measured absorption data at the plurality of wavelengths, the measured absorption data determined based at least in part on the detected portion of the infrared radiation; and correcting the measured absorption data to provide corrected absorption data, wherein the corrected absorption data is corrected for a non-analyte contribution that is, at least in part, from the shape of the sample element.