Patent ID: 8865454

Claim:
A flow through system for quantifying a target component in a liquid, said flow through system comprising a flow-through device comprising a flow path comprising a marker section, a capture section downstream to said marker section, and at least two quantification sections, said marker section comprises a non-immobilized marker, said capture section comprises a capture zone with an immobilized capture agent, and said at least two quantification sections comprise a pre-capture quantification section placed downstream to the marker section and upstream to the capture section, and a post-capture quantification section placed downstream to the capture section, said quantification sections are in form of flow channel sections free of solid material selected from films or porous substrates, wherein said flow path in each of said quantification sections has at least one cross sectional dimension which is smaller than the corresponding cross sectional dimension in at least one, of said marker section and said capture section, said system further comprise a quantification unit for each of said quantification sections, said quantification unit for each of said quantification sections being arranged to quantify marker containing components or particles passing through said respective quantification sections.