The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 05, 2025

Filed:

Feb. 07, 2022
Applicant:

Trustees of Tufts College, Medford, MA (US);

Inventors:

Sergio Fantini, Winchester, MA (US);

Giles Blaney, Somerville, MA (US);

Angelo Sassaroli, Arlington, MA (US);

Assignee:

Trustees of Tufts College, Medford, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J 3/42 (2006.01); G01J 3/28 (2006.01); G01N 21/03 (2006.01); G01N 21/17 (2006.01); G01N 21/31 (2006.01); G01N 21/47 (2006.01); G01N 21/51 (2006.01);
U.S. Cl.
CPC ...
G01J 3/42 (2013.01); G01N 21/0303 (2013.01); G01N 21/31 (2013.01); G01N 21/3103 (2013.01); G01N 21/4785 (2013.01); G01N 21/51 (2013.01); G01J 3/28 (2013.01); G01N 2021/1744 (2013.01); G01N 2201/0668 (2013.01); G01N 2201/08 (2013.01);
Abstract

A self-calibrating hybrid spectrophotometer comprises a receptacle for receiving the cuvette, first and second optodes that are configured to permit light to enter the cuvette, third and fourth optodes that are configured to permit light to leave the cuvette, and a controller that is configured to control delivery of light to one of the first and second optodes. Light entering one of the first and second optodes is received at the third and fourth optodes after having interacted with the turbid sample along different paths having different lengths. Measurements made at the third and fourth optodes in response to having illuminated both the first and second source optodes provide two slopes of optical transmittance as a function of path length. The spectrophotometer uses these slopes to identify a slope that is indicative of the absorption coefficient and the reduced scattering coefficient of the sample.


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