This invention provides methods and apparatus for applying a reagent to an analytical test device. The methods and apparatus employ a nozzle and a flexible restrictor to accurate control the amount of reagent applied to the test device. The analytical test devices prepared by the methods of this invention...http://www.google.es/patents/US5876957?utm_source=gb-gplus-sharePatente US5876957 - Methods for applying a reagent to an analytical test device
Methods for applying a reagent to an analytical test device
