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:
Jul. 12, 2011

Filed:

Sep. 30, 2005
Applicants:

Michael Swartz, Uxbridge, MA (US);

Charles H. Fraiser, Hopkinton, MA (US);

Patricia Ann Fowler, Upton, MA (US);

Michael D. Jones, Narraganset, RI (US);

Inventors:

Michael Swartz, Uxbridge, MA (US);

Charles H. Fraiser, Hopkinton, MA (US);

Patricia Ann Fowler, Upton, MA (US);

Michael D. Jones, Narraganset, RI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/02 (2006.01); G01N 30/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

Embodiments of the invention feature methods and apparatus for the efficient utilization of detectors and other components. The apparatus comprises a pump for receiving and propelling one or more samples in a fluid path. The apparatus further comprises a valve element in fluid communication with the pump for receiving the samples from the pump and directing the sample along one fluid path selected from a group. The group comprises a delay path comprising a delay volume, and a chromatography assembly having at least one chromatography column. The apparatus further comprises a detector or grouping of detectors in fluid communication with the delay path and the chromatography assembly for detecting compounds of interest to allow a single detector or single grouping of detectors to receive samples from the two fluid paths.


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