Sample analyzer and sampling system

Details Sample analyzer and sampling system Sample analyzer and sampling system

2007-10-02

2010-02-23

Shrivastav, Brij B (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

C324S321000, C324S315000

Reexamination Certificate

active

07667461

ABSTRACT:
A spectroscopic sample analysis apparatus includes an actively controlled, direct contact heat exchanger in serial fluid communication with a spectroscopic analyzer, and a controller communicably coupled to the heat exchanger. The heat exchanger is disposed downstream of a fluid handler in the form of a stream selection unit (SSU), a solvent/standard recirculation unit (SRU), and/or an auto-sampling unit (ASU). The SSU selectively couples individual stream inputs to an output port. The SRU includes a solvent/standard reservoir, and selectively couples output ports to the heat exchanger, and returns the solvent/standard sample to the reservoirs. The ASU includes a sample reservoir having a sample transfer pathway with a plurality of orifices disposed at spaced locations along a length thereof. The controller selectively actuates the fluid handler, enabling sample to flow therethrough to the heat exchanger, and actuates the heat exchanger to maintain the sample at a predetermined temperature.

REFERENCES:
patent: 6380737 (2002-04-01), Myles
patent: 6528018 (2003-03-01), Berndt
patent: 6544799 (2003-04-01), Lewis et al.
patent: 6795780 (2004-09-01), Hyde
patent: 7217360 (2007-05-01), Brann
patent: 2008/0058697 (2008-03-01), Kamen et al.
Watlow, Cast-X Series 2000 Circulation Heaters, 2005 Watlow Electric Manufacturing Company, 5 pgs.
Product Brochure, Product Platform: Circulation Heaters, Watlow's Cast-X Family of Heaters, p. 7.

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