Controlled-volume assay apparatus

Details Controlled-volume assay apparatus Controlled-volume assay apparatus

1989-03-08

1992-05-19

Johnston, Jill A.

Chemistry: molecular biology and microbiology

Apparatus

Including measuring or testing

435289, 435291, 435808, 435 11, 435 25, 435 28, 435 19, 435 15, 422 56, 422 58, 422 8205, 422 8209, 422100, 436165, C12M 134, C12M 140, G01N 2111

Patent

active

051143500

ABSTRACT:
Method and apparatus for use in determining the concentration of a selected analyte in a body-fluid sample. As the fluid sample is applied to a wettable, absorbent reaction pad, the extent of sample wetting of the pad is monitored by surface reflectance. This surface monitoring is used to control the volume of sample applied to the pad, to prevent overfilling the pad and to allow determination of the final sample volume applied. From the known sample volume and amount of analyte, the concentration of analyte in the sample can be accurately calculated in reaction components, trapping agents, matrix configuration, and analyte tested can be made.

REFERENCES:
patent: 3508879 (1970-04-01), Findl et al.
patent: 3607093 (1971-09-01), Stone
patent: 3791933 (1974-02-01), Moyer et al.
patent: 3907642 (1975-09-01), Richmond
patent: 3907645 (1975-09-01), Richmond
patent: 3925164 (1975-12-01), Beaucamp et al.
patent: 3983005 (1975-09-01), Goodhue et al.
patent: 4038485 (1977-07-01), Johnston et al.
patent: 4069017 (1978-01-01), Wu et al.
patent: 4144129 (1979-03-01), Gruber et al.
patent: 4144306 (1979-03-01), Figueras
patent: 4152390 (1979-05-01), Nosco et al.
patent: 4181575 (1980-01-01), Gruber et al.
patent: 4186251 (1980-01-01), Tarbutton
patent: 4212938 (1980-07-01), Gruber et al.
patent: 4256693 (1981-03-01), Kondo et al.
patent: 4399362 (1983-08-01), Cormier et al.
patent: 4435504 (1984-03-01), Zuk et al.
patent: 4477575 (1984-10-01), Vogel et al.
patent: 4503144 (1985-03-01), Deeg et al.
patent: 4544630 (1985-02-01), Ziegenhorn et al.
patent: 4680259 (1987-07-01), Cumbo et al.
patent: 4774192 (1988-09-01), Terminiello et al.
patent: 4816224 (1984-03-01), Vogel et al.
patent: 4820489 (1989-04-01), Rothe et al.
patent: 4826721 (1989-05-01), Arai et al.
patent: 4849340 (1989-07-01), Oberhardt
patent: 4877586 (1989-10-01), Devaney, Jr. et al.
patent: 4973549 (1990-11-01), Khanna et al.

Affiliated with

Also associated with

Rating

Controlled-volume assay apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlled-volume assay apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled-volume assay apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2414991