Method of component concentration detection based on reference wavelength
First Claim
1. A method of detecting a concentration of a target component in a sample, including steps of:
- 1) defining a wavelength at which a light intensity is insensitive to variation of the target component concentration as a reference wavelength for the target component;
2) detecting spectra at the reference wavelength and a further measuring wavelength;
3) processing the spectrum detected at the further measuring wavelength, with the spectrum detected at the reference wavelength as an inner reference, to obtain a characteristic spectrum including specific information of the target component;
4) building a calibration model between the characteristic spectrum and the concentration of the target component; and
5) determining the concentration of the target component based on the calibration model,wherein the reference wavelength λ
r is defined as follows;
for a pure absorption sample, α
g(λ
r)+α
w(λ
r)·
k=0; and
for a scattering sample,
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Accused Products
Abstract
A method of detecting a concentration of a target component by using a reference wavelength includes: defining a wavelength at which a light intensity is insensitive to the variation of the target component concentration as a reference wavelength for the target component; detecting spectra at both the reference wavelength and a further measuring wavelength; processing the spectrum detected at the further measuring wavelength, with the spectrum detected at the reference wavelength as an inner reference, to obtain a characteristic spectrum including specific information of the target component; building a calibration model between the characteristic spectrum and the concentration of the target component; and determining the concentration of the target component based on the calibration model.
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Citations
5 Claims
-
1. A method of detecting a concentration of a target component in a sample, including steps of:
-
1) defining a wavelength at which a light intensity is insensitive to variation of the target component concentration as a reference wavelength for the target component; 2) detecting spectra at the reference wavelength and a further measuring wavelength; 3) processing the spectrum detected at the further measuring wavelength, with the spectrum detected at the reference wavelength as an inner reference, to obtain a characteristic spectrum including specific information of the target component; 4) building a calibration model between the characteristic spectrum and the concentration of the target component; and 5) determining the concentration of the target component based on the calibration model, wherein the reference wavelength λ
r is defined as follows;for a pure absorption sample, α
g(λ
r)+α
w(λ
r)·
k=0; andfor a scattering sample, - View Dependent Claims (2, 3, 4, 5)
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Specification