Patent ID: 7901631
Filing Date: 2011-03-08
Classification: B01L,G01N

Abstract:
1. Unit for measurement of absorbance using a microchip, comprising: a microchip with a continuous cavity, a sample chamber, a reagent chamber, a reagent mixing chamber and an absorbance measuring chamber for measuring absorbance of light by a sample which is arranged in a straight line in an area of the continuous cavity; and a chip holder in which the microchip is located and which has a capillary part which is adapted and arranged for enabling light used for measuring absorbance to be delivered through the capillary part to the absorbance measuring chamber, wherein the capillary part has a smaller opening diameter than a diameter of a cross section of the absorbance measuring chamber which is perpendicular to an optical axis of the absorbance measuring chamber, and wherein an optical axis of the capillary part is aligned with the optical axis of the absorbance measuring chamber for measuring absorbance, wherein the maximum length which is perpendicular to the optical axis of the capillary part D wherein the capillary part has a middle area of increased diameter relative to inlet and outlet end areas of the capillary part.