As another example, in some embodiments, the sensitivity of detector 12 to incident radiation can vary as a function of the wavelength of the radiation.
In some embodiments, nonporous media can contact both faces of fibrous web 1, and either or both of the nonporous media can include holes 700, for sampling.
In some embodiments, some(or all) of the long-distance radiation sources can be mounted on a separate circuit board that interfaces to circuit board 18 via a suitable connector.
In some embodiments, one or more absorbance spectra for sample 30 can be analyzed to determine additional quantities such as a temperature of a tissue of interest within sample 30.
In some embodiments, at least one analyte can be detected in the fibrous web 1 or 111a, e.g., after exposing the analyte(s) to at least one reagent in the web.
In some embodiments, one or more absorbance spectra for sample 30 can be analyzed to determine quantities such as hemoglobin concentration, and/or water content, and/or oxygen tension and/or tissue oxygen saturation.
In some embodiments, e.g., wherein it may be desirable to utilize an increased volume of wash and/or buffer solution, the distal end of web 111b may extend beyond the top of the container 500, to allow the solution to evaporate faster.
In some embodiments, the number of radiation emitting elements in some of the short- and/or long-distance radiation sources(and/or some of the packages within the short- and/or long-distance radiation sources) can vary.
In some embodiments, the use of at least one wash and/or buffer solution may provide for removal and/or inactivation of undesirable material before determining the presence of the analyte.
As noted earlier, some embodiments of the invention include the use of at least one nonporous medium such as a plastic film, e.g., Mylar™ and the like, to provide, for example, support, minimal evaporation, and/or a defined application zone.
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