Patent ID: 8246920
Filing Date: 2012-08-21
Classification: G01N

Abstract:
1. A reagent tube for reducing reagent usage, said reagent tube comprising: a retainer with sidewalls, at least one group of loopholes provided on the sidewalls of the retainer; a colorimetric glass adapted to be inserted in said retainer, said colorimetric glass adapted to receive a first reagent to be observed through said loopholes; and a cap adapted to enclose the colorimetric glass within the retainer after the colorimetric glass is inserted wherein said cap comprises a cap body having an axis center; an inner tube pre-loaded with a second reagent and sealed with a seal, said inner tube being provided at the axis center of the cap body and penetrating through the cap body, wherein the inner tube is adapted to be inserted into the colorimetric glass; and a recess provided at the bottom of the cap body, the dimension of said recess matches the thicknesses of the upper edges of the colorimetric glass and the retainer, such that the upper edges of the colorimetric glass and the retainer are received in said recess.