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Immunoassay Reagents and Kits

Kits, substrates, and reagents for a variety of immunoassay procedures, including ELISA, singleplex immunoassays, and multiplex immunoassays, that are ideal for the quantification of target antigens; substrates available in colorimetric, chemiluminescent, or chemifluorescent varieties.

We offer a variety of products for enzyme-linked immunosorbent assays (ELISA or EIA) including plates, reagents, and kits to help you detect and quantify peptides, proteins, antibodies, and hormones.

ELISA is an analytical method based on the highly specific interaction between an antigen and an antibody. For this assay, an antigen is attached to a solid surface, to which an antibody-enzyme complex is linked. When a substrate is added and incubated with the other materials, it produces a measurable product.

Life Science Research ELISA Kits (84,801)
Singleplex and Multiplex Bead Based Immunoassays (5,735)
ELISA Substrates and Reagents (2,177)

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1,111 – 1,125 of 90,226 results
1,111

Novus Biologicals™ IL-3R alpha/CD123 Antibody Pair [HRP]
SDP

Monoclonal Antibody Pair

Host Species Rabbit/Mouse
Target Species Human
Conjugate HRP
Gene Symbol IL3RA
Assay Sensitivity 31.25-2000 pg/mL
Storage Requirements Storage is content dependent.
Research Discipline B Cell Development and Differentiation Markers, Cytokine Research, Oncogenes, Phospho Specific, Protein Kinase
Assay Range 31.25 pg/mL
For Use With (Application) Sandwich ELISA
Assay Sandwich ELISA
Regulatory Status RUO
Target IL-3R alpha/CD123
Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Human IL-3R alpha/CD123.
Kit Contents
  • Detection Antibody: 0.5 mg/mL rabbit anti-IL-3R alpha/CD123 monoclonal antibody conjugated to horseradish-peroxidase (HRP).
  • Capture Antibody: 0.35 mg/mL of mouse anti-IL-3R alpha/CD123 monoclonal antibody.
  • Standard: Each vial contains 65 ng of recombinant IL-3R alpha/CD123.
    		•
    Gene Alias CD123, CD123 antigen, hIL3Ra, hIL-3Ra, IL-3 receptor subunit alpha, IL3R, IL-3R subunit alpha, IL-3RA, IL-3R-alpha, IL3RAY, IL3RX, IL3RY, interleukin 3 receptor, alpha (low affinity), interleukin-3 receptor subunit alpha, MGC34174
    Product Type Antibody Pairs
    Gene ID (Entrez) 3563
    1,112

    Novus Biologicals™ TNF RII/TNFRSF1B Antibody Pair [HRP]
    SDP

    Rabbit Monoclonal Antibody Pair

    Host Species Rabbit
    Target Species Mouse
    Conjugate HRP
    Gene Symbol TNFRSF1B
    Assay Sensitivity 9.38-600 pg/mL
    Storage Requirements Storage is content dependent.
    Research Discipline Apoptosis, Biologically Active Proteins, Cancer, Cytokine Research, Signal Transduction, Zinc Finger
    Assay Range 9.4 pg/mL
    For Use With (Application) Sandwich ELISA
    Assay Sandwich ELISA
    Regulatory Status RUO
    Target TNF RII/TNFRSF1B
    Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Mouse TNF RII/TNFRSF1B.
    Kit Contents
  • Standard: Each vial contains 7 ng of recombinant mouse TNF RII/TNFRSF1B.
  • Capture Antibody: 1.0 mg/mL of rabbit anti-mouse TNF RII/TNFRSF1B monoclonal antibody (in PBS, pH 7.4).
  • Detection Antibody: 0.5 mg/mL rabbit anti-TNF RII/TNFRSF1B monoclonal antibody conjugated to horseradish-peroxidase (HRP) (in PBS, 50 % HRP-Protector, pH 7.4).
    		•
    Gene Alias CD120b, CD120b antigen, Etanercept, p75 TNF receptor, p75TBPII, p75TNFR, soluble TNFR1B variant 1, TNFBRp80 TNF-alpha receptor, TNF-R2, TNFR2TNFR1B, TNF-R75, TNFR80, TNF-RII, TNF-R-II, TNFR-II, tumor necrosis factor beta receptor, tumor necrosis factor binding protein 2, Tumor necrosis factor receptor 2, tumor necrosis factor receptor superfamily member 1B, tumor necrosis factor receptor superfamily, member 1B, Tumor necrosis factor receptor type II
    Product Type Antibody Pairs
    Gene ID (Entrez) 7133
    1,113

    Novus Biologicals™ Axl Antibody Pair [HRP]
    SDP

    Rabbit Monoclonal Antibody Pair

    Host Species Rabbit
    Target Species Mouse
    Conjugate HRP
    Gene Symbol AXL
    Assay Sensitivity 12.5-800 pg/mL
    Storage Requirements Storage is content dependent.
    Research Discipline Cell Cycle and Replication, Phospho Specific
    Assay Range 12.5 pg/mL
    For Use With (Application) Sandwich ELISA
    Assay Sandwich ELISA
    Regulatory Status RUO
    Target Axl
    Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Mouse Axl.
    Gene Alias AXL oncogene, AXL receptor tyrosine kinase, AXL transforming sequence/gene, EC 2.7.10, EC 2.7.10.1, JTK11, tyrosine-protein kinase receptor UFO, UFOoncogene AXL
    Product Type Antibody Pairs
    Gene ID (Entrez) 558
    1,114

    Invitrogen™ Canine MMP-8 ELISA Kit

    ELISA

    ENCOMPASS_PREFERRED
    1,115

    BD Human GM-CSF ELISA Set

    For human granulocyte macrophage colony stimulating factor (GM-CSF)

    1,116

    Novus Biologicals™ EphB6 Antibody Pair [HRP]
    SDP

    Rabbit Monoclonal Antibody Pair

    Host Species Rabbit
    Target Species Human
    Conjugate HRP
    Gene Symbol EPHB6
    Assay Sensitivity 9.38-600 pg/mL
    Storage Requirements Storage is content dependent.
    Research Discipline Protein Kinase
    Assay Range 9.4 pg/mL
    For Use With (Application) Sandwich ELISA
    Assay Sandwich ELISA
    Regulatory Status RUO
    Target EphB6
    Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Human EphB6.
    Kit Contents
  • Standard: Each vial contains 8 ng of recombinant EphB6.
  • Capture Antibody: 1.0 mg/mL of rabbit anti-EphB6 monoclonal antibody (in PBS, pH 7.4).
  • Detection Antibody: 0.5 mg/mL rabbit anti-EphB6 monoclonal antibody conjugated to horseradish-peroxidase (HRP) (in PBS, 50 % glycerol, pH 7.4).
    		•
    Gene Alias EC 2.7.10.1, EPH receptor B6, EphB6, ephrin type-B receptor 6, HEPTyrosine-protein kinase-defective receptor EPH-6, MGC129910, MGC129911
    Product Type Antibody Pairs
    Gene ID (Entrez) 2051
    1,117

    Invitrogen™ Human Activin R2B/ACVR2B ELISA Kit

    ELISA

    ENCOMPASS_PREFERRED
    Conjugate HRP
    Interassay CV <12%
    Intraassay CV <10
    Gene Symbol ACVR2B
    Total Assay Time 4 hrs 45 mins
    Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
    Assay Sensitivity 1.3 ng/mL
    Storage Requirements 2°C to 8°C
    Assay Range 1.3 to 300 ng/mL
    Test Time 1 hrs 20 mins
    Accession Number activin A receptor type 2 B; activin A receptor type IIB; activin A receptor, type IIB; activin receptor IIB; activin receptor type IIB; Activin receptor type-2 B; Activine receptor 2 b (transmembrane serine kinase); ACTRIIB; ACTR-IIB; ActRIIB type II activin receptor B; ACVR2B; HT x 4; MGC116908
    Regulatory Status RUO
    Target ACVR2B
    Kit Contents Pre-coated 96 well plate,Standard,Assay Diluent concentrate,Biotinylated Detection Antibody,SAV-HRP,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
    For Use With (Equipment) Colorimetric Microplate Reader
    Product Type ELISA
    Gene ID (Entrez) 93
    Sample Type Plasma,Serum,Supernatant
    Label or Dye HRP
    1,118

    Invitrogen™ Human Osteocrin ELISA Kit

    ELISA

    ENCOMPASS_PREFERRED
    Conjugate HRP
    Interassay CV <12%
    Intraassay CV <10
    Gene Symbol OSTN
    Total Assay Time 4 hrs 45 mins
    Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
    Assay Sensitivity 0.55 ng/mL
    Storage Requirements 2°C to 8°C
    Assay Range 0.55 to 125 ng/mL
    Test Time 1 hrs 20 mins
    Accession Number musclin; Ostc; Osteocrin; Ostn; Processed Osteocrin
    Regulatory Status RUO
    Target Osteocrin
    Kit Contents Pre-coated 96 well plate,Standard,Assay Diluent concentrate,Biotinylated Detection Antibody,SAV-HRP,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
    For Use With (Equipment) Colorimetric Microplate Reader
    Product Type ELISA
    Gene ID (Entrez) 344901
    Sample Type Plasma,Serum,Supernatant
    Label or Dye HRP
    1,119

    Novus Biologicals™ Human LAT ELISA Kit (Colorimetric)
    SDP

    Colorimetric ELISA Kit

    1,120

    Novus Biologicals™ Human Progesterone ELISA Kit (Colorimetric)
    SDP

    High sensitivity and specificity for detection of human progesterone.

    1,121

    R&D Systems™ Human IL-32 DuoSet ELISA

    Human IL-32 DuoSet ELISA from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

    1,122
    Promotions Available

    Invitrogen™ Human R-Spondin 2 ELISA Kit

    ELISA

    ENCOMPASS_PREFERRED
    Conjugate HRP
    Interassay CV <12%
    Intraassay CV <10
    Gene Symbol RSPO2
    Total Assay Time 4 hrs 45 mins
    Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
    Assay Sensitivity 0.55 ng/mL
    Storage Requirements 2°C to 8°C
    Assay Range 0.55 to 35 ng/mL
    Test Time 1 hrs 20 mins
    Accession Number 2610028F08Rik; AA673245; CRISTIN2; Cristin-2; cysteine-rich and single thrombospondin domain-containing protein 2; D430027K22; ftls; hRspo2; mCristin-2; RGD1562331; roof plate-specific spondin-2; Rspo2; R-spondin 2; R-spondin 2 homolog; R-spondin 2 homolog (Xenopus laevis); R-spondin-2; UNQ9384/PRO34209
    Regulatory Status RUO
    Target RSPO2
    Kit Contents Pre-coated 96 well plate,Standard,Assay Diluent concentrate,Biotinylated Detection Antibody,SAV-HRP,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
    For Use With (Equipment) Colorimetric Microplate Reader
    Product Type ELISA
    Gene ID (Entrez) 340419
    Sample Type Plasma,Serum,Supernatant
    Label or Dye HRP
    1,123

    Invitrogen™ Human Nogo-A/Reticulon 4A ELISA Kit

    ELISA

    ENCOMPASS_PREFERRED
    For Use With (Equipment) Colorimetric Microplate Reader
    Gene ID (Entrez) 57142
    Interassay CV <12%
    Intraassay CV <10
    Assay Sensitivity 0.42 ng/mL
    Assay Range 0.42 to 100 ng/mL
    1,124

    Novus Biologicals™ Human ROCK1 ELISA Kit (Colorimetric)
    SDP

    Colorimetric ELISA Kit

    1,125

    Novus Biologicals™ Human TIRAP ELISA Kit (Colorimetric)
    SDP

    Colorimetric ELISA Kit