Sample type
Cell culture supernatant, Saliva, Milk, Urine, Cerebral Spinal Fluid
Assay type
Sandwich (quantitative)
Sensitivity
= 41 pg/ml
Range
0.078 ng/ml – 20 ng/ml
Recovery
98 %
Assay time
4h 00m
Assay duration
Multiple steps standard assay
Species reactivity
Reacts with: Human
Product overview
Abcam’s Complement C4 Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of Complement C4 levels in urine, milk, saliva, CSF and cell culture supernatants.
A Complement C4 specific antibody has been precoated onto 96-well plates and blocked. Standards or test samples are added to the wells and subsequently a Complement C4 specific biotinylated detection antibody is added and then followed by washing with wash buffer. Streptavidin-Peroxidase Conjugate is added and unbound conjugates are washed away with wash buffer. TMB is then used to visualize Streptavidin-Peroxidase enzymatic reaction. TMB is catalyzed by Streptavidin-Peroxidase to produce a blue color product that changes into yellow after adding acidic stop solution. The density of yellow coloration is directly proportional to the amount of Complement C4 captured in plate.
The entire kit may be stored at -20°C for long term storage before reconstitution – Avoid repeated freeze-thaw cycles.
Platform
Microplate
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