Multiple injection analysis

Details Multiple injection analysis Multiple injection analysis

1995-12-18

1998-04-21

Le, Long V.

Chemistry: analytical and immunological testing

Automated chemical analysis

With a continuously flowing sample or carrier stream

436 63, 436150, 436174, 436179, 436180, 436807, 422 81, 422 8201, 422 8202, 422 8212, 7386421, 7386371, G01N 3508

Patent

active

057417091

ABSTRACT:
An apparatus for flow injection analysis is disclosed which comprises: (a) an open flow cell containing an upper cell body, a lower cell body contiguously affixed to the upper cell body, and a cell chamber provided in the upper cell body, the cell chamber having a bottom and a top, wherein the top of the cell chamber is open to an atmosphere; (b) a carrier fluid inlet port provided in a lower portion of the upper cell body and in communication with the cell chamber; (c) a fluid delivery device for introducing a carrier fluid into the cell chamber through the carrier fluid inlet; (d) an over-flow outlet setup in an upper portion of the upper cell body to allow exit of the carrier fluid and thus maintaining a constant fluid volume in the cell chamber; (e) a detector disposed in the lower cell body in such a manner that its detecting surface is placed at the bottom of the cell chamber and and facing upward; and (f) a sample injecting assembly, separated from the inlet port and the fluid delivery device for injecting a sample to be analyzed directly onto the detecting surface of the detector without requiring the carrier fluid to carry the sample to the cell chamber. The flow injection analysis disclosed in the present invention combines the advantages of both FIA (continuous operation) and BIA (no dilution by carrier solvent), while eliminating the disadvantages thereof.

REFERENCES:
patent: Re32920 (1989-05-01), Matson et al.
patent: 3298934 (1967-01-01), Angeleri
patent: 4108602 (1978-08-01), Hanson et al.
patent: 4319884 (1982-03-01), Wilson et al.
patent: 4328185 (1982-05-01), Reasons et al.
patent: 4610170 (1986-09-01), Ekholm et al.
patent: 4740356 (1988-04-01), Huber
patent: 4865992 (1989-09-01), Hach et al.
patent: 4873057 (1989-10-01), Robertson et al.
patent: 4888998 (1989-12-01), Buzza et al.
patent: 4987785 (1991-01-01), Spencer
patent: 5045284 (1991-09-01), Smith et al.
patent: 5047212 (1991-09-01), Blades et al.

Affiliated with

Also associated with

Rating

Multiple injection analysis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple injection analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple injection analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2057035