An assay device for detection and determination of {HEAD ~ an analyte} in {TAIL ~ a test sample} uses a barrier containing an aperture to control the application of reagents to the device for greater reproducibility of results 
An assay device for detection and determination of { HEAD ~ an analyte } in { TAIL ~ a test sample } uses a barrier containing an aperture to control the application of reagents to the device for greater reproducibility of results
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH