Chemistry: physical processes – Physical processes – Crystallization
Patent
1979-08-28
1982-02-16
Marcus, Michael S.
Chemistry: physical processes
Physical processes
Crystallization
23901, 73 611C, 422 81, G01N 3508, G01N 3314, G01N 3366
Patent
active
043157548
ABSTRACT:
Continuous flow analysis with an unobstructed, unsegmented carrier stream transporting a sample plug through a main conduit from a sample injection station to a flow-through detector. One or more reagents are injected in the sample plug on its way through the main conduit, the dispersion being controlled to optimize the conditions of chemical reaction. The reagents are added by being pumped in intermittently in merging streams, at least one of the solution delivering devices being activated and deactivated at pre-programmed time intervals during each sampling cycle. Each cycle is initiated by injecting the sample solution at the sample injection station. The solution delivering devices can have various pumping rates and at least one pump may be an automatic burette. The delivery is controlled by a timer or microcomputer, and the transport of solution can be momentarily stopped before the sample plug enters or while it is inside the flow-through detector.
REFERENCES:
patent: 3690833 (1972-09-01), Ferarri
patent: 3908702 (1975-09-01), Klosse et al.
patent: 4009999 (1977-03-01), Negersmith
patent: 4022575 (1977-05-01), Hansen et al.
patent: 4049381 (1977-09-01), Burns et al.
Hansen Elo H.
Ruzicka Jaromir
BIFOK AB
Marcus Michael S.
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