Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1989-07-24
1992-09-15
Johnston, Jill A.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 80, 422 8205, 436 25, 436 31, 436 32, 436155, 436181, G01N 2502, G01N 3324
Patent
active
051476118
ABSTRACT:
A heating and targeting laser beam and microscope apparatus optically senses, heats to generate a effluent fluid and chemically analyzes the thermal extract fluid or fluid pyrolyzates from a microscopic particle within a heterogeneous composite sample. A transparent duct-like chamber having a bottom opening is attached to a microscope. A contact surface of the sample is raised to abut against the bottom opening, which encloses the space around the particle and also brings the particle into the common focal plane of the microscope and the converging laser beam(s). This single step avoids the complex separate focusing and sealing steps required by present day techniques. The apparatus also includes an insulated and conductively heated collection probe and an inert gas supply (to efficiently sweep and collect the small amount of hot fluid and minimize condensation loss, secondary reactions, or complex heating devices), diverging-collimating-converging laser beam lenses (to achieve spot focusing as small as 10 microns) and a cold trap (to collect a series of fluid quantities). A collective analysis of the trapped fluid generated from a single type of particle is accomplished on a resolution quantity of fluid volatilized from the cold trap.
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Larter Stephen R.
Lin Rui
Recht Gunnar W.
Senftle Joseph T.
Stout Scott A.
Jacobson William O.
Johnston Jill A.
Union Oil Company of California
Wirzbicki Gregory F.
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