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Human FGF23(Fibroblast Growth Factor 23) ELISA Kit

  • Cat.No.:E-EL-H1116

  • Reactivity: Human

To Purchase E-EL-H1116

  • 96T
  • 48T
  • 24T
  • 96T*5
  • 96T*10
Price: $609

Product Details


Assay type Sandwich-ELISA
Format 96T/48T
Assay time 3.5h
Detection range 15.63-1000 pg/mL
Sensitivity 9.38 pg/mL
Sample type &Sample volume serum, plasma and other biological fluids; 100μL
Specificity This kit recognizes Human FGF23 in samples. No significant cross-reactivity or interference between Human FGF23 and analogues was observed.
Reproducibility Both intra-CV and inter-CV are < 10%.
Application This ELISA kit applies to the in vitro quantitative determination of Human FGF23 concentrations in serum, plasma and other biological fluids.

Test Principle

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 FGF23. Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Human FGF23 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 FGF23, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. 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 nm ± 2 nm. The OD value is proportional to the concentration of Human FGF23. You can calculate the concentration of Human FGF23 in the samples by comparing the OD of the samples to the standard curve.

Kit components & Storage

An unopened kit can be stored at 2-8℃ for 1 month. If the kit is not supposed to be used within 1 month, store the components separately according to the following conditions once the kit is received.
Micro ELISA Plate(Dismountable) 96T: 8 wells ×12 strips
48T: 8 wells ×6 strips
-20℃, 6 months
Reference Standard 96T: 2 vials
48T: 1 vial
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL
48T: 1 vial, 60 μL
-20℃(Protect from light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 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 1 vial, 10 mL 2-8℃(Protect from light)
Stop Solution 1 vial, 10 mL 2-8°C
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Technical Data


Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human FGF23 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human FGF23 were tested on 3 different plates, 20 replicates in each plate.

  Intra-assay Precision Inter-assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 20 20 20
Mean (pg/mL) 50.86 87.87 437.81 48.92 79.96 443.72
Standard deviation 3.31 4.66 19.96 2.75 3.49 20.85
CV (%) 6.51 5.30 4.56 5.62 4.36 4.70


The recovery of Human FGF23 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 94-110 101
EDTA plasma (n=8) 96-107 102
Cell culture media (n=8) 89-104 95


Samples were spiked with high concentrations of Human FGF23 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

Target Information

Database LinksSwissProt:   Q9GZV9
Research AreaCancer, Developmental biology, Signal transduction, Stem cells

Assay Procedures

elisa assay procedure 1

1. Add 100μL standard or sample to the wells. Incubate for 90 min at 37°C

elisa assay procedure 2

2. Discard the liquid, immediately add 100μL Biotinylated Detection Ab working solution to each well. Incubate for 60 min at 37°C

elisa assay procedure 3

3. Aspirate and wash the plate for 3 times

elisa assay procedure 4

4. Add 100μL HRP conjugate working solution. Incubate for 30 min at 37°C. Aspirate and wash the plate for 5 times

elisa assay procedure 5

5. Add 90μL Substrate Reagent. Incubate for 15 min at 37°C

elisa assay procedure 6

6. Add 50μL Stop Solution

elisa assay procedure 7

7. Read the plate at 450nm immediately. Calculation of the results


From now on, if you have published a paper by using any of our products since 1/1/2019, fill out the “Elabscience Publication Reward Application Form”carefully and send it to, we will get back to you with the reward after we confirm it ASAP!

View more details about our Publication Reward >>

  1. Elife (2020) IF: 7.08
    High-phytate/low-calcium diet is a risk factor for crystal nephropathies, renal phosphate wasting, and bone loss

    DOI: 10.7554/eLife.52709

    PMID: 32271147

    Sample: Serum
  2. Nephrology (2014) IF: 4.6
    The association of fibroblast growth factor-23 with arterial stiffness in the Multi-Ethnic Study of Atherosclerosis.

    DOI: 10.1093/ndt/gfu101

    PMID: 24782533

    Sample: Serum
  3. Blood Purification (2020) IF: 2.116
    Comparison of Circulating Levels of Uremic Toxins in Hemodialysis Patients Treated with Medium Cut-Off Membranes and High-Flux Membranes: Theranova in Sisli Hamidiye Etfal (THE SHE) Randomized Control Study

    DOI: 10.1159/000508061

    PMID: 32634815

    Sample: Serum
  4. Journal of Clinical Densitometry (2020) IF: 2.31
    Association Between FGF-23 Levels and Risk of Fracture in Women With Systemic Sclerosis

    DOI: 10.1016/j.jocd.2020.05.010

    PMID: 32600830

    Sample: Serum
  5. Rheumatology international (2019) IF: 1.984
    Evaluation of serum fibroblast growth factor-23 in patients with axial spondyloarthritis and its association with sclerostin, inflammation, and spinal damage

    DOI: 10.1007/s00296-019-04298-5

    PMID: 30968207

    Sample: Serum
  6. Therapeutic Apheresis and Dialysis (2017) IF: 1.529
    FGF23 Level And Intima-Media Thickness Are Elevated From Early Stages Of Chronic Kidney Disease.

    DOI: 10.1111/1744-9987.12592

    PMID: 28971600

    Sample: Serum
  7. Dicle T?p Dergisi (2020)
    Intact Fibroblast Growth Factor 23 and Peripheral Vascular Complications in Patients on Hemodialysis

    DOI: 10.5798/dicletip.706013

    Sample: Serum
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