초록 ▼

A biological specimen-containing and/or reagent mixing well used in centrifuge tubes, microtitre plates or trays and the like, and related methods, which comprises shelves or ledges within the specimen well each of which comprises a substantial nonvertical surface component, and functions to receive

A biological specimen-containing and/or reagent mixing well used in centrifuge tubes, microtitre plates or trays and the like, and related methods, which comprises shelves or ledges within the specimen well each of which comprises a substantial nonvertical surface component, and functions to receive and temporarily store a desired quantity of reagent against premature delivery ot the bottom region of the well thereby accommodating dispensing of the reagent into the bottom region at precisely the desired and proper point in time.

대표청구항 ▼

A method of accurately controlling the time of delivery of at least one reagent to the bottom region of a specimen/reagent well to begin an assay incubation period comprising the steps of: depositing one or more droplets of at least one liquid reagent upon non-wetting, liquid-restraining non-vertica

A method of accurately controlling the time of delivery of at least one reagent to the bottom region of a specimen/reagent well to begin an assay incubation period comprising the steps of: depositing one or more droplets of at least one liquid reagent upon non-wetting, liquid-restraining non-vertical ledge surface means comprising a substantial horizontal component of the specimen/reagent well substantially above the bottom region where a specimen is deposited, for temporary separate storage; preventing inadvertent displacement of the reagent into the specimen due solely to the force of gravity during temporary storage by adhesion of the liquid reagent to the non-wetting, liquid-restraining non-vertical ledge surface means; causing entry of the reagent into the bottom region of the well at an exact selected point in time by using other force in addition to gravity to cause the reagent temporarily restrained upon the non-wetting, liquid-restraining non-vertical ledge surface means to flow from the ledge surface means into the bottom region at the point in time when mixing and incubation is to begin; centrifuging the mixed reagent and specimen.