Method and apparatus for performing spectroscopic analysis with applicability to samples with turbidity and absorption
First Claim
1. A measurement device for determining estimations of concentrations of one or more individual components of a multi-component sample, the device comprising:
- an excitation signal source for providing an excitation signal;
a sample chamber for maintaining a sample therein, said sample chamber in communication with said excitation signal source;
a detector operative to detect said excitation signal after said signal has been passed through said sample chamber; and
a processing element in communication with said detector, said processing element operative to provide concentration estimations from data received from said detector, said concentration estimations reflecting effects of at least one non-linear contribution.
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Abstract
A method of performing analysis of samples having turbidity and/or high absorbance is disclosed. The analysis utilizes information from multiple factors, which affect transmittance or absorbance. These factors include: absorbance as measured in a non-turbid sample, scattering losses due to particles and limitations of the measurement device as measured in a non-absorbing sample, additional scattering losses due to sample absorbance, variable path length effects due to the sample, variable path length effects due to the measurement device, and additional nonlinear effects. By taking into account additional factors that affect transmittance or absorbance, a more accurate analysis is achieved.
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Citations
6 Claims
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1. A measurement device for determining estimations of concentrations of one or more individual components of a multi-component sample, the device comprising:
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an excitation signal source for providing an excitation signal;
a sample chamber for maintaining a sample therein, said sample chamber in communication with said excitation signal source;
a detector operative to detect said excitation signal after said signal has been passed through said sample chamber; and
a processing element in communication with said detector, said processing element operative to provide concentration estimations from data received from said detector, said concentration estimations reflecting effects of at least one non-linear contribution. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification