초록 ▼

Apparatuses and methods are disclosed which can be used in the field (i.e., outside the laboratory environment) to determine qualitatively and at least semiquantitatively the presence or absence of minute quantities of ligand. The apparatus can be in the form of a strip comprising a support means pr

Apparatuses and methods are disclosed which can be used in the field (i.e., outside the laboratory environment) to determine qualitatively and at least semiquantitatively the presence or absence of minute quantities of ligand. The apparatus can be in the form of a strip comprising a support means provided with a groove intermediate its ends forming a crease line upon which the strip can be folded upon itself with bibulous elements and spaced from the crease line and arranged so that when the strip is folded upon itself the bibulous elements become aligned with each other and come into liquid contact.

대표청구항 ▼

Apparatus for the chemical analysis of an analyte comprising: A. a first bibulous element containing a chemical reaction system that includes all the reagents necessary to provide a liquid-transferable chemical species within the first element upon the addition of an analyte-containing liquid sample

Apparatus for the chemical analysis of an analyte comprising: A. a first bibulous element containing a chemical reaction system that includes all the reagents necessary to provide a liquid-transferable chemical species within the first element upon the addition of an analyte-containing liquid sample to the first element, the presence or amount of which species is related to the presence or amount, respectively, of analyte in the liquid sample; B. a second bibulous element containing a detection system responsive to the liquid-transferable chemical species to produce a perceptible signal; and C. support means carrying said bibulous elements in a normally spaced relationship but enabling one or both of the bibulous elements to move in a pre-determined path to bring the elements into liquid transferring contact, thereby enabling any transferable chemical species to be transferred to the second bibulous element and reacted with the detection system to produce a perceptible signal.