Human IL-6 ELISA Kit (Interleukin-6) High Sensitivity (ab46042)


  • Product name
    Human IL-6 ELISA Kit (Interleukin-6) High Sensitivity
    See all IL6 kits
  • Detection method
  • Precision
    Sample n Mean SD CV%
    Overall 4.4%
    Sample n Mean SD CV%
    Sample 1 18 25pg/ml 3 12.2%
    Sample 2 18 12pg/ml 1 8.7%
    Sample 3 18 6pg/ml 1 13.7%
    Sample 4 18 41pg/ml 2 5.9%
    Sample 5 18 31pg/ml 1 4.9%
  • Sample type
    Cell culture supernatant, Serum, Plasma
  • Assay type
    Sandwich (quantitative)
  • Sensitivity
    < 0.8 pg/ml
  • Range
    1.56 pg/ml - 50 pg/ml
  • Recovery

    93 %

  • Assay time
    3h 45m
  • Assay duration
    Multiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    Abcam’s IL-6 (Interleukin-6) Human High Sensitivity in vitro ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of IL-6 in supernatants, buffered solutions, serum, plasma and other body fluids. This assay will recognise both natural and recombinant Human IL-6.

    A monoclonal antibody specific for IL-6 has been coated onto the wells of the microtiter strips provided. Samples, including standards of known IL-6 concentrations, control specimens or unknowns are pipetted into these wells. During the first incubation, the standards or samples and a biotinylated monoclonal antibody specific for IL-6 are simultaneously incubated. After washing, the enzyme Streptavidin-HRP, that binds the biotinylated antibody is added, incubated and washed. A TMB substrate solution is added which acts on the bound enzyme to induce a colored reaction product. The intensity of this colored product is directly proportional to the concentration of IL-6 present in the samples. 

    This kit will recognize both endogenous and recombinant Human IL-6.

    Get results in 90 minutes with Human IL-6 ELISA Kit (ab178013) from our SimpleStep ELISA® range.


  • Tested applications
    Suitable for: Sandwich ELISAmore details
  • Platform


  • Storage instructions
    Store at +4°C. Please refer to protocols.
  • Components Identifier 1 x 96 tests 2 x 96 tests
    10X Standard Diluent Buffer Black 1 x 25ml 1 x 25ml
    200X Wash Buffer White 1 x 10ml 2 x 10ml
    Plastic Plate Covers 1 x 2 units 1 x 4 units
    Biotinylated Antibody Diluent Red 1 x 7ml 1 x 13ml
    Biotinylated anti-IL-6 Red 1 x 0.4ml 2 x 0.4ml
    Chromogen TMB Substrate Solution 1 x 11ml 1 x 24ml
    HRP Diluent Red 1 x 23ml 1 x 23ml
    IL-6 Control Silver 2 vials 4 vials
    IL-6 Microplate (12 x 8 well strips) 1 unit 2 units
    IL-6 Standard (Lyophilized) Yellow 2 vials 4 vials
    Standard Diluent (Human Serum) 1 x 7ml 2 x 7ml
    Stop Reagent Black 1 x 11ml 2 x 11ml
    Streptavidin-HRP 2 x 5µl 4 x 5µl
  • Research areas
  • Function
    Cytokine with a wide variety of biological functions. It is a potent inducer of the acute phase response. Plays an essential role in the final differentiation of B-cells into Ig-secreting cells Involved in lymphocyte and monocyte differentiation. It induces myeloma and plasmacytoma growth and induces nerve cells differentiation Acts on B-cells, T-cells, hepatocytes, hematopoietic progenitor cells and cells of the CNS. Also acts as a myokine. It is discharged into the bloodstream after muscle contraction and acts to increase the breakdown of fats and to improve insulin resistance.
  • Involvement in disease
    Genetic variations in IL6 are associated with susceptibility to rheumatoid arthritis systemic juvenile (RASJ) [MIM:604302]. An inflammatory articular disorder with systemic-onset beginning before the age of 16. It represents a subgroup of juvenile arthritis associated with severe extraarticular features and occasionally fatal complications. During active phases of the disorder, patients display a typical daily spiking fever, an evanescent macular rash, lymphadenopathy, hepatosplenomegaly, serositis, myalgia and arthritis.
    Note=A IL6 promoter polymorphism is associated with a lifetime risk of development of Kaposi sarcoma in HIV-infected men.
  • Sequence similarities
    Belongs to the IL-6 superfamily.
  • Post-translational
    N- and O-glycosylated.
  • Cellular localization
  • Information by UniProt
  • Alternative names
    • B cell differentiation factor
    • B cell stimulatory factor 2
    • B-cell stimulatory factor 2
    • BSF 2
    • BSF-2
    • BSF2
    • CDF
    • CTL differentiation factor
    • Cytotoxic T cell differentiation factor
    • Hepatocyte stimulating fact
    • HGF
    • HPGF
    • HSF
    • Hybridoma growth factor
    • Hybridoma plasmacytoma growth factor
    • IFN-beta-2
    • IFNB2
    • IL 6
    • IL-6
    • IL6
    • IL6 protein
    • IL6_HUMAN
    • Interferon beta 2
    • Interferon beta-2
    • Interleukin 6
    • Interleukin 6 (interferon beta 2)
    • Interleukin BSF 2
    • Interleukin-6
    • Interleukin6
    see all
  • Database links

Associated products


Our Abpromise guarantee covers the use of ab46042 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.


  • IL-6 was measured in cell culture medium from U937 control cells, or cells stimulated with LPS (1 �g x mL-1; 6 h) or PMA (10 ng x mL-1; 24 h) and LPS (background signal subtracted) (duplicates +/- SD).
  • Representative Standard Curve using ab46042



This product has been referenced in:
  • Zhao C  et al. Long-term bicycle riding ameliorates the depression of the patients undergoing hemodialysis by affecting the levels of interleukin-6 and interleukin-18. Neuropsychiatr Dis Treat 13:91-100 (2017). ELISA ; Human . Read more (PubMed: 28096677) »
  • Sun L  et al. Actinidia chinensis Planch. Improves the Indices of Antioxidant and Anti-Inflammation Status of Type 2 Diabetes Mellitus by Activating Keap1 and Nrf2 via the Upregulation of MicroRNA-424. Oxid Med Cell Longev 2017:7038789 (2017). Human . Read more (PubMed: 28642811) »

See all 10 Publications for this product

Customer reviews and Q&As

1. The Biotinylated Antibody is provided in liquid form, it is stable at 4°C
2. Standards and Controls are provided lyophilized and should be reconstituted either by the volume stated on the vial or in the Protocol Booklet. They should be used ...

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Thank you for confirming these details and for your cooperation. The details provided enable us to closely monitor the quality of our products.

I am sorry this product did not perform as stated on the datasheet and for the inconvenience this...

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Thank you for your message and for providing this further information.

I have reviewed this enquiry and discussed it with the originator of this kit. Regrettably, it does seem the second kit is not providing the sensitive results you require...

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Thank you for taking the time to contact us. Your message has been forwarded to the scientific support team. I am sorry to hear you have had difficulty obtaining satisfactory results from the second kit you received.

The details you have kin...

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Thank you for your inquiry.
Do you have the catalogue numbers of the kits you're inquiring about? We have 7 different IL6 Human ELISA kits in the catalogue: ab46044, ab46042, ab46027, ab46041, ab100572, ab100573 and ab108867.
The IL6 High Sen...

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Thank you for contacting us.

The lab let me know the following:
Saliva is suitable for thisELISA kit, and the regular protocol would apply. There is no need to pre-treat the samples before assaying.

I hope this information is...

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Thank you for confirming those details.

I have noticed that the results that you provided me with, there is a difference between the positive and negative samples by eye. How has your spectrophotometer been set up to measure this? At what wav...

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Thank you for your information.

I am sorry for the delay in getting back to you. I think it would be very helpful for us to understand exactly how the standard samples and streptavidin HRP was prepared.

As you say, this kit has been...

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Thank you for confirming those details.

I am not entirely sure why you are seeing such low readings. It is likely to do either with the standard itself or with the detection (antibody and HRP conjugate). What I would like to do if you wouldn'...

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Thank you for contacting us.

I am sorry to hear you are experiencing difficulties with one of our products. We take product complaints very seriously, and investigate every product that we feel may not be performing correctly.

In ...

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