Determining time response value of an analyte in a liquid

Abstract

There is presented an apparatus for determining one or more time response values of an analyte or a group of analytes () in a liquid () comprising a translucent element comprising pores (), wherein the pores () are dead end pores () extending into the translucent element from respective openings () in the translucent element, wherein a cross-sectional dimension of the openings () of the pores () is dimensioned so as to prevent larger particles or debris from entering the pores (), while allowing the analyte or the group of analytes in the liquid () to enter the pores () via diffusion, one or more light sources () being adapted to illuminate at least the pores () in the translucent element (), and a light detector () being adapted to at each of multiple points in time receive light () emerging from the pores () in response to illumination () by the one or more light sources, wherein the light detector is further adapted to generate one or more signals based on the received light, each of the one or more signals being temporally resolved and representative of at least a part of the received light, and wherein the apparatus is further comprising a data processing device comprising a processor configured to determine one or more time response values based on the one or more signals.