Human Pro-Collagen I C-Terminal Propeptide ELISA Kit (PICP) is a single-wash 90-min Simplestep used to quantify Human Pro-Collagen I C-Terminal Propeptide (PICP) with a sensitivity of 8,15 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step. - Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader.