Apparatus and Method for Detecting and Quantifying Analytes in Solution
First Claim
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1. An apparatus comprising:
- (1) a spectrometer comprising;
(i) a source operable for providing mid-infrared radiation to a sample region;
(ii) a wavelength discriminator operable for receiving a composite light signal from the sample region and spatially dispersing the composite light signal as a plurality of wavelength signals; and
(iii) a plurality of detectors, each of the plurality of detectors operable for generating one of a plurality of first electrical signals based on one of the plurality of wavelength signals; and
(2) a sample holder, the sample holder being operable for locating a sample fluid at the sample region, the sample holder being dimensioned and arranged to enable the sample fluid to receive mid-infrared radiation and provide the composite light signal.
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Abstract
A method for identifying and quantifying one or more analytes included in a sample comprising a background solvent is disclosed. The present invention locates a sample fluid at a sample region by virtue of a sample holder that comprises work-hardened silver halide. The sample fluid at the sample region is then spectrally characterized via a mid-infrared spectrometer.
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Citations
30 Claims
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1. An apparatus comprising:
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(1) a spectrometer comprising; (i) a source operable for providing mid-infrared radiation to a sample region; (ii) a wavelength discriminator operable for receiving a composite light signal from the sample region and spatially dispersing the composite light signal as a plurality of wavelength signals; and (iii) a plurality of detectors, each of the plurality of detectors operable for generating one of a plurality of first electrical signals based on one of the plurality of wavelength signals; and (2) a sample holder, the sample holder being operable for locating a sample fluid at the sample region, the sample holder being dimensioned and arranged to enable the sample fluid to receive mid-infrared radiation and provide the composite light signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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(1) a spectrometer comprising; (i) a source operable for providing mid-infrared radiation; (ii) a wavelength discriminator operable for spatially dispersing a composite light signal into a plurality of wavelength signals; and (iii) a plurality of detectors, each of the plurality of detectors operable for generating one of a plurality of first electrical signals based on one of the plurality of wavelength signals; and (2) a sample holder that includes a sample cell that comprises work-hardened silver halide, the sample holder operable for locating a sample fluid such that the sample fluid (a) receives mid-infrared radiation from the source and (b) provides the composite light signal to the wavelength discriminator such that the composite light signal includes the mid-infrared radiation and spectral information based on the sample fluid. - View Dependent Claims (12, 13, 14, 15)
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16. An apparatus comprising:
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(1) a spectrometer comprising; (i) a source operable for providing mid-infrared radiation; (ii) a first optical fiber operable for conveying mid-infrared radiation from the source to a sample region, the first optical fiber comprising silver halide; (iii) a second optical fiber operable for conveying a composite light signal comprising mid-infrared radiation from the sample region to a wavelength discriminator, the second optical fiber comprising silver halide; (iv) the wavelength discriminator, the wavelength discriminator being operable for receiving the composite light signal and spatially dispersing it as a plurality of wavelength signals; and (v) a plurality of detectors, each of the plurality of detectors operable for generating one of a plurality of first electrical signals based on one of the plurality of wavelength signals; and (2) a sample holder, the sample holder being operable for locating a sample fluid at the sample region, the sample holder being dimensioned and arranged to enable the sample fluid to receive mid-infrared radiation and provide the composite light signal. - View Dependent Claims (17, 18, 19, 20)
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21. A method comprising:
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locating a sample fluid in a sample region, the sample fluid including a first chemical constituent and a background solvent, the sample fluid being located by a sample holder that enables the sample fluid to receive mid-infrared radiation and provide a composite light signal; exposing the sample fluid to mid-infrared radiation; providing the composite light signal such that it includes spectral information based on each of a first chemical constituent and the background solvent; distributing the first composite light signal into a plurality of wavelength signals; and providing a first electrical signal based on the plurality of wavelength signals. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification