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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 (84,784)
Singleplex and Multiplex Bead Based Immunoassays (5,732)
ELISA Substrates and Reagents (2,183)

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3,451 – 3,465 of 90,218 results
3,451
Promotions Available

Invitrogen™ Human EphA2 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol EPHA2
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 0.08 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 0.082 to 20 ng/mL
Test Time 1 hrs 20 mins
Accession Number ARCC2; AW545284; CTPA; CTPP1; CTRCT6; Eck; EPH receptor A2; Epha2; ephrin receptor EphA2; ephrin type-A receptor 2; Epithelial cell kinase; epithelial cell receptor protein tyrosine kinase; I79
Regulatory Status RUO
Target EphA2
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) 1969
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
3,452

Thermo Scientific™ CaptureSelect™ Biotin Anti-Gonadotropin Conjugate
GREENER_CHOICE

Thermo Scientific™ CaptureSelect™ Biotin Anti-Gonadotropin Conjugate consists of a 13 kDa recombinant single domain antibody fragment (VHH affinity ligand) that specifically binds with high affinity and selectivity to the alpha chain of human gonadotropins.

Ligand Type Antibody
Content And Storage Store in freezer (-5°C to -30°C).
Target Species Human
Label Type Biotin and Analogs
Product Line CaptureSelect
3,453

Invitrogen™ Rat IL-12 p40 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Target Species Rat
Conjugate HRP
Interassay CV 5.1%
Intraassay CV 4.2
Gene Symbol Il12a, Il12b
Total Assay Time 4 hrs
Sample Volume Plasma 10 μL, Serum 10 μL, Supernatant 100 μL
Assay Sensitivity <3 pg/mL
Storage Requirements 2°C to 8°C
Assay Range 15.6 to 1000 pg/mL
For Use With (Application) Colorimetric
Test Time 1 hrs 20 mins
Accession Number Q9R103
Regulatory Status RUO
Target IL-12 p40
Kit Contents Pre-coated 96 well plate,Standard,Standard Dilution Buffer,Biotinylated Detection Antibody,Streptavidin-HRP,HRP Diluent,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
Precision <3 pg/mL
For Use With (Equipment) Colorimetric Microplate Reader
Product Type ELISA
Gene ID (Entrez) 64546
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
3,454
Promotions Available

Invitrogen™ Human GITR L/TNFSF18 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Protein Family Other Proteins
Target Species Human
Conjugate HRP
Intraassay CV <10
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 100 μL
Assay Sensitivity 25 pg/mL
Research Discipline Signal Transduction
For Use With (Application) ELISA, Protein Assays, Protein Biology, Cancer Biology, Immunology, Neuroscience, Neurobiology, Protein Detection, Protein Analysis
Test Time 1 hrs 20 mins
Assay Solid-phase sandwich ELISA
Target GITRL
Specificity This ELISA kit shows no cross-reactivity with the following cytokines tested: human Angiogenin, BDNF, BLC, CNTF, ENA- 78, FGF-4, IL-1 alpha, IL-1 beta, IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL- 11, IL-12 p70, IL-12 p40, IL-13, IL-15, IL-309, IP-10, FGF-4, FGF-6, FGF- 7, G-CSF, GDNF, GM-CSF, IFN-gamma, IGFBP-2, IGFBP-3, IGFBP-4, Leptin (OB), MCP-1, MCP-2, MCP-3, MDC, MIF, MIG, MIP-1 alpha, MIP-1 beta, MIP-1 delta, PARC, PDGF, RANTES, SCF, SDF-1 alpha, TARC, TGF-beta, TIMP-1, TIMP-2, TNF-alpha, TNF-beta, TPO, VEGF.
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
Label or Dye HRP
Interassay CV <12%
Gene Symbol AITRL,GITRL,TL6,TNLG2A,hGITRL
Storage Requirements 2°C to 8°C
Assay Range 40.96 to 10,000 pg/mL
Accession Number Q9UNG2
Regulatory Status RUO
Product Type ELISA
Gene ID (Entrez) 8995
Sample Type Plasma,Serum,Supernatant
Synonym RP1-15D23.1, AITRL, GITRL, TL6, hGITRL
3,455

Invitrogen™ Human CFHR1 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
3,456

Novus Biologicals™ Human Thrombospondin-1 ELISA Kit (Colorimetric)
SDP

High sensitivity and specificity for detection of human Thrombospondin-1.

3,457

Novus Biologicals™ beta 2-Microglobulin Antibody Pair [HRP]
SDP

Rabbit Monoclonal Antibody Pair

Immunoassay Kit Format Sandwich ELISA Kit
Host Species Rabbit
Target Species Rat
Conjugate HRP
Gene Symbol B2M
Assay Sensitivity 2.66-170 pg/mL
Storage Requirements Storage is content dependent.
Research Discipline Adaptive Immunity, Cancer, Cell Biology, Diabetes Research, Immunology
Assay Range 2.66 pg/mL
For Use With (Application) Sandwich ELISA
Assay Sandwich ELISA
Regulatory Status RUO
Target beta 2-Microglobulin
Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Rat beta 2-Microglobulin.
Gene Alias beta chain of MHC class I molecules, beta-2-microglobin, beta-2-microglobulin
Product Type Antibody Pairs
Gene ID (Entrez) 567
3,458

R&D Systems™ Human CXCL11/I-TAC Quantikine ELISA Kit

Human CXCL11/I-TAC Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

3,459
Promotions Available

Invitrogen™ Rat P-Cadherin ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol Cdh3
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 0.041 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 0.041 to 10 ng/mL
Test Time 1 hrs 20 mins
Accession Number AI385538; CADH3; cadherin 15, M-cadherin (myotubule); cadherin 3; cadherin 3, type 1, P-cadherin (placental); cadherin-3; Cadp; calcium-dependent adhesion protein, placental; CDH15; CDH3; CDHP; HJMD; PCAD; P-cadherin; Placental cadherin; Placental-cadherin; RPE-specific cadherin
Regulatory Status RUO
Target P-cadherin
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) 116777
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
3,460

Novus Biologicals™ Human Cleaved CD42b/GPIb alpha - Cleaved ELISA Kit (Colorimetric)
SDP

This kit recognizes Human GC in samples.

3,461

Novus Biologicals™ FOLR1 Antibody Pair [HRP]
SDP

Mouse Monoclonal Antibody Pair

Immunoassay Kit Format Sandwich ELISA Kit
Host Species Mouse
Target Species Human
Conjugate HRP
Gene Symbol FOLR1
Assay Sensitivity 4.69-300 pg/mL
Storage Requirements Storage is content dependent.
Research Discipline Cancer
Assay Range 4.69 pg/mL
For Use With (Application) Sandwich ELISA
Assay Sandwich ELISA
Regulatory Status RUO
Target FOLR1
Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Human FOLR1.
Gene Alias Adult folate-binding protein, FBP, folate binding protein, Folate receptor 1, folate receptor 1 (adult), folate receptor alpha, Folate receptor, adult, FOLR, FR-alpha, KB cells FBP, Ovarian tumor-associated antigen MOv18
Product Type Antibody Pairs
Gene ID (Entrez) 2348
3,462

Novus Biologicals™ Serpin E1/PAI-1 Antibody Pair [HRP]
SDP

Monoclonal Antibody Pair

Immunoassay Kit Format Sandwich ELISA Kit
Host Species Rabbit/Mouse
Target Species Human
Conjugate HRP
Gene Symbol SERPINE1
Assay Sensitivity 46.88-3000 pg/mL
Storage Requirements Storage is content dependent.
Research Discipline Cancer
Assay Range 46.88 pg/mL
For Use With (Application) Sandwich ELISA
Assay Sandwich ELISA
Regulatory Status RUO
Target Serpin E1/PAI-1
Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Human Serpin E1/PAI-1.
Gene Alias Endothelial plasminogen activator inhibitor, PAI1PAI-1, PAISerpin E1, PLANH1plasminogen activator inhibitor 1, serine (or cysteine) proteinase inhibitor, clade E (nexin, plasminogenactivator inhibitor type 1), member 1, serpin peptidase inhibitor, clade E (nexin, plasminogen activator inhibitortype 1), member 1
Product Type Antibody Pairs
Gene ID (Entrez) 5054
3,463

Novus Biologicals™ Galectin-3 Antibody Pair [HRP]
SDP

Monoclonal Antibody Pair

Immunoassay Kit Format Sandwich ELISA Kit
Host Species Rabbit/Mouse
Target Species Human
Conjugate HRP
Gene Symbol LGALS3
Assay Sensitivity 3.91-250 pg/mL
Storage Requirements Storage is content dependent.
Research Discipline Apoptosis, Biologically Active Proteins, Cancer, Cellular Markers, Neuroscience, Tumor Suppressors
Assay Range 3.91 pg/mL
For Use With (Application) Sandwich ELISA
Assay Sandwich ELISA
Regulatory Status RUO
Target Galectin-3
Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Human Galectin-3.
Kit Contents
  • Detection Antibody: 0.2 mg/mL of rabbit anti-Human Galectin-3 monoclonal antibody conjugated to horseradish-peroxidase (HRP) (in PBS, 50 % HRP-Protector, pH 7.4, store at 4C).
  • Capture Antibody: 0.5 mg/mL of mouse anti-Human Galectin-3 monoclonal antibody (in PBS, pH 7.4).
  • Standard: Each vial contains 30 ng of recombinant Human Galectin-3.
    		•
    Gene Alias Carbohydrate-binding protein 35, CBP 35,35 kDa lectin, Gal-3, galactin-3, Galactose-specific lectin 3, Galactoside-binding protein, GALBPCBP35, galectin-3, GALIG, IgE-binding protein, L31, L-31, Laminin-binding protein, Lectin L-29, lectin, galactoside-binding, soluble, 3, LGALS2, MAC-2, Mac-2 antigen, MAC2GAL3
    Product Type Antibody Pairs
    Gene ID (Entrez) 3958
    Technique 1. Capture Antibody: Dilute to a working concentration of 2 μg/mL in PBS before coating. 2. Detection Antibody: Dilute to working concentration of 0.25 μg/mL in detection antibody dilution buffer before use. 3. Standard: Reconstitute with 1 ml detection antibody dilution buffer. After reconstitution, store at -20 to -80°C in a manual defrost freezer. A seven-point standard curve using 2-fold serial dilutions in sample dilution buffer, and a high standard of 250 pg/mL is recommended.
    3,464

    Invitrogen™ Monkey uPAR ELISA Kit

    ELISA

    ENCOMPASS_PREFERRED
    3,465

    R&D Systems™ Human ICAM-5 DuoSet ELISA

    Human ICAM-5 DuoSet ELISA from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.