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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 (132,532)
Singleplex and Multiplex Bead Based Immunoassays (5,858)
ELISA Substrates and Reagents (2,325)

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1,081 – 1,095 of 138,172 results
1,081

Novus Biologicals™ Human NCF1 - Ready-To-Use ELISA Kit (Colorimetric)
SDP

Colorimetric ELISA Kit

1,082

Novus Biologicals™ Human TRPM1 - Ready-To-Use ELISA Kit (Colorimetric)
SDP

Colorimetric ELISA Kit

Storage Requirements Storage of components varies. See protocol for specific instructions.
1,083

R&D Systems™ Human Galectin-1 DuoSet ELISA

For the development of Solid Phase Sandwich ELISA to measure natural and recombinant human Galectin-1

1,084

Novus Biologicals™ Mouse EGR2 ELISA Kit (Colorimetric)
SDP

Kit (Colorimetric)

1,085

Novus Biologicals™ Human NFkB2/NFkB p100 ELISA Kit (Colorimetric)
SDP

Colorimetric ELISA Kit

1,086

Novus Biologicals™ Rat CDK4 ELISA Kit (Colorimetric)
SDP

ELISA kits are ideal for the quantification of target antigens in tissue extracts, serum and cell culture.

1,087

Novus Biologicals™ Rat IL-12/IL-35 p35 ELISA Kit (Colorimetric)
SDP

Colorimetric ELISA Kit

1,088

Novus Biologicals™ Human FLNC - Ready-To-Use ELISA Kit (Colorimetric)
SDP

Colorimetric ELISA Kit

1,089

Novus Biologicals™ Human ADAM33 ELISA Kit (Colorimetric)
SDP

ELISA kits are ideal for the quantification of target antigens in tissue extracts, serum and cell culture.

1,090

Novus Biologicals™ Rat Complement C4 ELISA Kit (Colorimetric)
SDP

ELISA kits are ideal for the quantification of target antigens in tissue extracts, serum and cell culture.

1,091
Promotions Available

Invitrogen™ Human C1S/Complement Component C1s ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol C1S
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 4.1 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 4.1 to 260 ng/mL
Test Time 1 hrs 20 mins
Accession Number AA959438; AI255193; AI327365; basic proline-rich peptide IB-1; C1 esterase; C1S; C1s1; C1sa; Complement C1s subcomponent; Complement C1s subcomponent heavy chain; Complement C1s subcomponent light chain; Complement C1s-A subcomponent; Complement C1s-A subcomponent heavy chain; Complement C1s-A subcomponent light chain; Complement component 1 subcomponent s; complement component 1 subcomponent s-A; complement component 1, s subcomponent; complement component 1, s subcomponent 1; complement component C1SA; r-gsp; serine protease
Regulatory Status RUO
Target C1S
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) 716
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
1,092
Promotions Available

Invitrogen™ Rat IL-9 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol Il9
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 0.45 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 0.45 to 100 ng/mL
Test Time 1 hrs 20 mins
Accession Number cytokine P40; homolog of mouse T cell and mast cell growth factor 40; HP40; Il9; IL-9; ILN; Interleukin; interleukin 9; Interleukin9; interleukin-9; P40; p40 cytokine; p40 T-cell and mast cell growth factor; T-cell growth factor p40
Regulatory Status RUO
Target IL-9
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) 116558
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
1,093
Promotions Available

R&D Systems™ Human IFN-alpha 2 Quantikine HS ELISA Kit

Human IFN-alpha 2 Quantikine HS ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

1,094

Novus Biologicals™ Serpin A1/alpha 1-Antitrypsin Antibody Pair [HRP]
SDP

Monoclonal Antibody Pair

Immunoassay Kit Format Sandwich ELISA Kit
Host Species Rabbit/Mouse
Target Species Human
Conjugate HRP
Gene Symbol SERPINA1
Assay Sensitivity 31.25-2000 pg/mL
Storage Requirements Storage is content dependent.
Research Discipline Stem Cell Markers
Assay Range 31.25 pg/mL
For Use With (Application) Sandwich ELISA
Assay Sandwich ELISA
Regulatory Status RUO
Target Serpin A1/alpha 1-Antitrypsin
Specificity This solid phase sandwich ELISA utilizes a monoclonal antibody specific for Human Serpin A1/alpha 1-Antitrypsin.
Kit Contents
  • Detection Antibody: 0.2 mg/mL rabbit anti-Serpin A1/alpha 1-Antitrypsin monoclonal antibody conjugated to horseradish-peroxidase (HRP) (in PBS, 50 % HRP-Protector, pH 7.4).
  • Capture Antibody: 0.5 mg/mL of mouse anti-Serpin A1/alpha 1-Antitrypsin monoclonal antibody (in PBS, pH 7.4).
  • Standard: Each vial contains 160 ng of recombinant Serpin A1/alpha 1-Antitrypsin.
    		•
    Gene Alias A1A, AATMGC23330, Alpha-1 protease inhibitor, Alpha-1-antiproteinase, alpha-1-antitrypsin, antitrypsin), member 1, member 1, PIMGC9222, serine (or cysteine) proteinase inhibitor, clade A (alpha-1 antiproteinase, serine (or cysteine) proteinase inhibitor, clade A, member 1, Serpin A1, serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin)
    Product Type Antibody Pairs
    Gene ID (Entrez) 5265
    Technique 1. Capture Antibody: Dilute to a working concentration of 1 μg/mL in PBS before coating. 2. Detection Antibody: Dilute to working concentration of 0.4 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 2 ng/mL is recommended.
    1,095

    Novus Biologicals™ Human SDF4 ELISA Kit (Colorimetric)
    SDP

    ELISA kits are ideal for the quantification of target antigens in tissue extracts, serum and cell culture.