The invention concerns an analytical element for the determination of an
analyte containing in or on material which enables liquid transport
between zones, a sample application zone and a detection zone located
downstream thereof, wherein the detection zone contains a partner 1 of a
specific binding pair 1 immobilized in such a manner that it is able to
bind to partner 2 of the specific binding pair 1 which is not the analyte
when it contacts it, wherein a labelled partner 1 of a specific binding
pair 2 is present upstream of the detection zone impregnated on a
material such that it can be detached by liquid and is able to bind to
partner 2 of the specific binding pair 2 which is not the analyte when
this contacts it as well as a method for the determination of an analyte
using this analytical element.