Method and apparatus for conducting multiple chemical assays

Details Method and apparatus for conducting multiple chemical assays Method and apparatus for conducting multiple chemical assays

1992-10-19

1996-04-16

Warden, Robert J.

Chemistry: analytical and immunological testing

Automated chemical analysis

Utilizing a moving indicator strip or tape

436 46, 436530, 436165, 436166, 436 169, 422 66, 422 67, 435 791, 4352871, 4352883, 4352884, 4352887, G01N 3500

Patent

active

055082009

ABSTRACT:
A system for high performance automated chemical analysis includes a video camera photometer with a computer-controlled interference filter wheel. A fluidics system delivers ultramicro sample and reagent volumes in the 0.05 to 5.0 microliter range to a supporting analytical media. The media is precisely positioned relative to the photometer by an x-y axis reaction media holder capable of accurate and precise positioning of the ultramicro reaction spots. The reaction media can consist of absorbent cellulose sample/reaction strips or microscopic sized multiple wells. A data and reduction system monitors multiple simultaneous reactions within a common test area of the analytical media to provide final quantitative reports. The method for conducting multiple chemical assays involves placing small volumes of sample/reagent combinations at discrete locations about a common test area on the analytical media and simultaneously measuring resulting optical changes at each discrete location.

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