QuickStep is a revolutionary innovation in pre-coated ELISA kit technologies. Using highly validated antigens & antibodies coupled with optimized buffer systems, QuickStep guarantees super-sensitive quantitative results in 90 minutes with a 1-wash protocol.
This ELISA kit applies to the in vitro quantitative determination of POSTN/OSF-2 concentrations in serum and plasma.
Specificity:
This kit recognizes POSTN/OSF-2 in samples. No significant cross-reactivity or interference between POSTN/OSF-2 and analogues was observed.
Dilution Method:
It is recommended to dilute normal serum/plasma samples at 20-100 fold.
Reproducibility:
Both intra-CV and inter-CV are < 10%.
Storage & Stability:
An unopened kit can be stored at 2-8°C for 6 months. After test, the unused wells and reagents should be stored according to the storage table in the manual.
This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Human POSTN/OSF-2. Samples (or Standards) and Horseradish Peroxidase (HRP) linked antibody specific for Human POSTN/OSF-2 are added to the micro ELISA plate wells. Human POSTN/OSF-2 in samples (or standards) combines with the coated antibody and HRP linked detection antibody special to Human POSTN/OSF-2. Excess conjugate and unbound sample or standard are washed from the plate. The substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 ± 2 nm. The OD value is proportional to the concentration of Human POSTN/OSF-2. The concentration of Human POSTN/OSF-2 in the samples is then determined by comparing the OD of the samples to the standard curve.
Item
Specifications
Storage
Micro ELISA Plate(Dismountable)
8 wells - 12 strips
2-8°C, 1 months
Reference Standard
2 vials
2-8°C, use the reconstituted standard within 24h
Concentrated HRP Linked Detection Ab(100-)
1 vial, 60 µL
2-8°C(Protect from light)
Reference Standard & Sample Diluent
1 vial, 20 mL
2-8°C
HRP Linked Ab Diluent
1 vial, 14 mL
Concentrated Wash Buffer(25-)
1 vial, 30 mL
Substrate Reagent
1 vial, 10 mL
2-8°C(Protect from light)
Stop Solution
1 vial, 10 mL
2-8°C
Plate Sealer
5 pieces
Product Description
1 copy
Certificate of Analysis
1 copy
Intra-assay Precision
Inter-assay Precision
Sample
1
2
3
1
2
3
n
20
20
20
20
20
20
Mean (ng/mL)
1.99
6.27
13.47
2.17
6.59
13.68
Standard deviation
0.13
0.32
0.62
0.12
0.35
0.42
CV (%)
6.78
5.17
4.61
5.58
5.32
3.04
Sample Type
Range (%)
Average Recovery (%)
Serum(n=8)
91-103
98
EDTA plasma(n=8)
84-99
91
Samples were spiked with high concentrations of Human POSTN/OSF-2 and diluted with Reference Standard & Sample Diluent to produceSamples with values within the range of the assay.
