Abstract:
A method for volume metering of a liquid sample onto a reactive surface and a flow metering capillary device for controlled fluid flow comprising two opposing surface areas spaced apart throughout a capillary zone of intended liquid transport at a distance no greater than that which will maintain a capillary flow of liquid introduced therebetween, means to permit Introduction of a test specimen between these surfaces, there being formed between said opposing surfaces an overflow channel and an overflow chamber which draws any excess liquid from the means for introducing the liquid between the surfaces.
Abstract:
Apparatus is disclosed for accurately positioning and retaining multiple, individual reagent test devices in a holder. The holder consists of a base member and a top member in which the top member contains openings of at least the same number and dimension as the reagent pads appearing on the test devices. The holder permits the practical utilization of multiple, individual dip-and-read test devices in automated instrumentation.