This CLIA kit applies to the in vitro quantitative determination of Human DKK2 concentrations in serum, plasma and other biological fluids.
This CLIA kit uses the Sandwich-CLIA principle. The micro CLIA plate provided in this kit has been pre-coated with an antibody specific to Human DKK2. Standards or samples are added to the micro CLIA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human DKK2 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Human DKK2, biotinylated detection antibody and Avidin-HRP conjugate will appear fluorescence. The Relative light unit (RLU) value is measured by the Chemiluminescence immunoassay analyzer. The RLU value is positively associated with the concentration of Human DKK2. You can calculate the concentration of Human DKK2 in the samples by comparing the RLU value of the samples to the standard curve.
|Detection range||31.25-2000 pg/mL|
|Sample type||Serum, plasma and other biological fluids|
|Repeatability||CV < 15%|
This kit recognizes Human DKK2 in samples. No significant cross-reactivity or interference between Human DKK2 and analogues was observed.
As the RLU values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human DKK2 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human DKK2 were tested on 3 different plates, 20 replicates in each plate.
|Intra-assay Precision||Inter-assay Precision|
|C V (%)||12.66||11.04||7.07||11.88||11.59||6.83|
The recovery of Human DKK2 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
|Sample Type||Range (%)||Average Recovery (%)|
|EDTA plasma (n=5)||90-104||98|
|Cell culture media (n=5)||85-98||91|
Samples were spiked with high concentrations of Human DKK2 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.
|Serum (n=5)||EDTA plasma (n=5)||Cell culture media (n=5)|
An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not used within 1 month, store the items separately according to the following conditions once the kit is received.
|Micro CLIA Plate(Dismountable)||8 wells ×12 strips||-20℃, 6 months|
|Reference Standard||2 vials|
|Concentrated Biotinylated Detection Ab (100×)||1 vial, 120 μL|
|Concentrated HRP Conjugate (100×)||1 vial, 120 μL||-20℃(shading light), 6 months|
|Reference Standard & Sample Diluent||1 vial, 20 mL||2-8℃, 6 months|
|Biotinylated Detection Ab Diluent||1 vial, 14 mL|
|HRP Conjugate Diluent||1 vial, 14 mL|
|Concentrated Wash Buffer (25×)||1 vial, 30 mL|
|Substrate Reagent A||1 vial, 5 mL||2-8℃ (shading light)|
|Substrate Reagent B||1 vial, 5 mL||2-8℃ (shading light)|
|Plate Sealer||5 pieces|
|Product Description||1 copy|
|Certificate of Analysis||1 copy|
Note: All reagent bottle caps must be tightened to prevent evaporation and microbial pollution.
The volume of reagents in partial shipments is a little more than the volume marked on the label, please use accurate measuring equipment instead of directly pouring into the vial(s).
1.Add 100 μL of standard or sample to each well. Incubate for 90 min at 37℃.
2.Remove the liquid.
3.Add 100 μL Biotinylated Detection Ab. Incubate 1 hour at 37℃. Aspirate and wash 3 times.
4.Add 100 μL HRP Conjugate. Incubate 30 min at 37℃. Aspirate and wash 5 times.
5.Add 100 μL Substrate Mixture Solution. Incubate for 5 min at 37℃.
6.Fluorescence appeared. Measure the RLU value with the Chemiluminescence immunoassay analyzer. Calculation of the results.