• Product name
    Human Factor IX ELISA Kit
    See all Factor IX kits
  • Detection method
  • Precision
    Sample n Mean SD CV%
    Overall 2.5%
    Sample n Mean SD CV%
    Overall 4.6%
  • Sample type
    Cell culture supernatant, Milk, Serum, Plasma
  • Assay type
    Sandwich (quantitative)
  • Sensitivity
    = 0.4 ng/ml
  • Range
    1.56 ng/ml - 100 ng/ml
  • Recovery

    99 %

  • Assay time
    4h 00m
  • Assay duration
    Multiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    Factor IX Human in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of Factor IX concentrations in cell culture supernatants, serum and plasma.

    A Factor IX specific antibody has been precoated onto 96-well plates and blocked. Standards or test samples are added to the wells and subsequently a Factor IX 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 Factor IX captured in plate.

    Get higher sensitivity in only 90 minutes with Human Factor IX ELISA Kit (ab188393) from our SimpleStep ELISA® range.

  • Tested applications
    Suitable for: Sandwich ELISAmore details
  • Platform


  • Storage instructions
    Store at -20°C. Please refer to protocols.
  • Components 1 x 96 tests
    100X Streptavidin-Peroxidase Conjugate 1 x 80µl
    10X Diluent M Concentrate 1 x 30ml
    20X Wash Buffer Concentrate 2 x 30ml
    50X Biotinylated Human Factor IX Antibody 1 x 120µl
    Chromogen Substrate 1 x 8ml
    Factor IX Microplate (12 x 8 well strips) 1 unit
    Factor IX Standard 1 vial
    Sealing Tapes 3 units
    Stop Solution 1 x 12ml
  • Research areas
  • Relevance
    Factor IX is a vitamin K-dependent coagulation factor IX that circulates in the blood as an inactive zymogen. This factor is converted to an active form by factor XIa, which excises the activation peptide and thus generates a heavy chain and a light chain held together by one or more disulfide bonds. The role of this activated factor IX in the blood coagulation cascade is to activate factor X to its active form through interactions with Ca+2 ions, membrane phospholipids, and factor VIII. Alterations of this gene, including point mutations, insertions and deletions, cause factor IX deficiency, which is a recessive X-linked disorder, also called hemophilia B or Christmas disease.
  • Cellular localization
  • Alternative names
    • Cf-9
    • Cf9
    • Christmas factor
    • Coagulation factor IX
    • F9 p22
    • Factor 9
    • Factor IX F9
    • FIX
    • FIX F9
    • HEMB
    • P19
    • Plasma thromboplastic component
    • Plasma Thromboplastin Component
    • PTC
    • THPH8
    see all
  • Database links

Associated products


Our Abpromise guarantee covers the use of ab108831 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
Sandwich ELISA Use at an assay dependent concentration.


  • Human Factor IX standard curve: mean of duplicates (+/- SD)
  • Human Factor IX measured in biological fluids showing quantity (ng) per mL of tested sample. Human serum and plasma were diluted 400-3200 fold. Human milk was diluted 1-8 fold.  

  • Representative Standard Curve using ab108831



ab108831 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

Thank you for your call yesterday, and I apologize again for the delay in gettingthis information to you.

I have contacted the production lab again, and they haverecentlydone further testing to determine that the 400 ng standard isequal to 80...

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Thank you for contacting us.  Based on the lab's data, this kit does not react with mouse Factor IX.  I would still recommend doing a negative control with a WT mouse sample to ensure that your data is accurate and that you are only measuring human Fac...

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