CA2169881A1 - Liquid Correlation Spectrometry - Google Patents
Liquid Correlation SpectrometryInfo
- Publication number
- CA2169881A1 CA2169881A1 CA2169881A CA2169881A CA2169881A1 CA 2169881 A1 CA2169881 A1 CA 2169881A1 CA 2169881 A CA2169881 A CA 2169881A CA 2169881 A CA2169881 A CA 2169881A CA 2169881 A1 CA2169881 A1 CA 2169881A1
- Authority
- CA
- Canada
- Prior art keywords
- radiation
- medium
- analyte
- optical transfer
- correlation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
A number of optically active elements are provided that enable the performance of accurate, dependable chemical analysis in a medium having varying matrix backgrounds and substantial component interferences. Optical transfer cells are provided that include positive correlation filter systems adapted to accept near-IR radiation and to pass a wavelength from that radiation having high correlation with a particular analyte. A near-IR spectrometer apparatus for the measurement of analyte concentration in a complex medium is also provided.
The apparatus features an optical transfer cell constructed according to the invention. The apparatus can be used in the non-invasive determination of blood analyte concentrations in a variety of mediums. Methods of measuring the concentration of a blood analyte in a mammalian subject are also provided. The methods entail the use of reflective near-IR radiation to interrogate a medium to obtain spectrally modified radiation. The radiation thus obtained is passed through an optical transfer cell constructed according to the invention to obtain a wavelength having high correlation with an analyte of interest and substantially no correlation with interfering constituents present in the medium.
The apparatus features an optical transfer cell constructed according to the invention. The apparatus can be used in the non-invasive determination of blood analyte concentrations in a variety of mediums. Methods of measuring the concentration of a blood analyte in a mammalian subject are also provided. The methods entail the use of reflective near-IR radiation to interrogate a medium to obtain spectrally modified radiation. The radiation thus obtained is passed through an optical transfer cell constructed according to the invention to obtain a wavelength having high correlation with an analyte of interest and substantially no correlation with interfering constituents present in the medium.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50969695A | 1995-07-31 | 1995-07-31 | |
| US08/509,696 | 1995-07-31 | ||
| US08/547,145 US5750994A (en) | 1995-07-31 | 1995-10-24 | Positive correlation filter systems and methods of use thereof |
| US08/547,145 | 1995-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2169881A1 true CA2169881A1 (en) | 1997-02-01 |
| CA2169881C CA2169881C (en) | 2000-01-11 |
Family
ID=27056639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002169881A Expired - Fee Related CA2169881C (en) | 1995-07-31 | 1996-02-20 | Liquid correlation spectrometry |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2169881C (en) |
| MX (1) | MX9600781A (en) |
-
1996
- 1996-02-20 CA CA002169881A patent/CA2169881C/en not_active Expired - Fee Related
- 1996-02-28 MX MX9600781A patent/MX9600781A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2169881C (en) | 2000-01-11 |
| MX9600781A (en) | 1997-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |