Chromatographic column for microwave heating

Measuring and testing – Gas analysis – Gas chromatography

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

73 2335, 95 82, 95 87, 422 88, G01N 3002

Patent

active

060294981

ABSTRACT:
A chromatography column for microwave heating either incorporates microwave absorbing material into the column itself or positions the column adjacent to microwave absorbing material so that the column and the chromatography sample contained therein are heated by the microwave absorbing material via conduction or convection. For example, a microwave absorbing material (e.g., ferrite) can be fused into the inner silica layer or incorporated in an outer polymer layer of the column. Microwave absorbing material can also be incorporated into an external element (e.g., an outer tube, sleeve, or spool) positioned adjacent to the chromatography column. A layer of thermal insulation can be placed around the column to decrease the rate of heat loss. Optionally, a gap can be provided between the chromatography column and thermal insulation to further reduce heat loss during the heating cycle and to accelerate cooling at the end of the heating cycle by making it possible to ventilate the heated column. The chromatography column assembly can be protected from overheating by selecting a microwave absorbing material having a loss factor that decreases rapidly above a predetermined maximum temperature.

REFERENCES:
patent: 3023835 (1962-03-01), Brashear
patent: 3169389 (1965-02-01), Green, Jr. et al.
patent: 3232093 (1966-02-01), Burow et al.
patent: 3527567 (1970-09-01), Philyaw et al.
patent: 4204423 (1980-05-01), Jordan
patent: 4347216 (1982-08-01), Kawasaki et al.
patent: 4861556 (1989-08-01), Neas et al.
patent: 4882286 (1989-11-01), Neas et al.
patent: 4904450 (1990-02-01), Floyd
patent: 5005399 (1991-04-01), Holtzclaw et al.
patent: 5066843 (1991-11-01), Revesz
patent: 5314664 (1994-05-01), Sperling et al.
patent: 5377426 (1995-01-01), Pare
patent: 5427741 (1995-06-01), Bennett
patent: 5443795 (1995-08-01), Revesz
patent: 5447052 (1995-09-01), Delaune et al.
patent: 5509956 (1996-04-01), Opperman et al.
patent: 5519947 (1996-05-01), Pare
patent: 5675909 (1997-10-01), Pare
patent: 5808178 (1998-09-01), Rounbehler et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Chromatographic column for microwave heating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chromatographic column for microwave heating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromatographic column for microwave heating will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-672577

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.