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.
Patent No.:
Date of Patent:
Oct. 23, 2007
Filed:
Jun. 29, 2005
Andrew Tipler, Trumbull, CT (US);
Heidi Grecsek, Shelton, CT (US);
Frank Delorenzo, Stratford, CT (US);
Giuseppe Coppola, West Haven, CT (US);
Andrew Tipler, Trumbull, CT (US);
Heidi Grecsek, Shelton, CT (US);
Frank DeLorenzo, Stratford, CT (US);
Giuseppe Coppola, West Haven, CT (US);
PerkinElmer LAS, Inc., Boston, MA (US);
Abstract
Disclosed are systems and methods that include a thermal desorption unit, a chromatographic column, and an interface device between the unit and the column. The interface device controls the fluid flowing into the column, such as by providing additional carrier gas to maintain a substantially constant gas flow or velocity, by proving a controlled temperature increase, or by venting a portion of the gas received from the thermal desorption unit, thereby removing the dependence on the thermal desorption unit for such control. In some embodiments, the interface is a chromatographic injector. In certain embodiments, a transfer line from the desorption unit is coupled to the same port of the interface device as the chromatographic column. In some of these embodiments, this is accomplished by employing a special adaptor.