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 (132,275)

Singleplex and Multiplex Bead Based Immunoassays (6,178)

ELISA Substrates and Reagents (2,362)

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1,906 – 1,920 of 138,208 results

1,906

Novus Biologicals™ Rat Free Tri-Iodothyronine ELISA Kit (Colorimetric)

Assay has high sensitivity and specificity for detection of rat Free-T3

Pricing & Availability
Specifications

Target	Free Tri-Iodothyronine
Specificity	For detection of rat Free-T3
Kit Contents	Adhesive Strip (For 96 wells), Assay plate, Conjugate, HRP-avidin, Substrate B, Substrate A, Wash Buffer (20 x concentrate), Stop Solution, Standard Instruction manual
Product Type	ELISA Kit (Colorimetric)
Sample Type	Cell Lysates,Plasma,Serum,Tissue Homogenates
Sample Volume	50 to 100 μL
Assay Sensitivity	0.38pmol/L
Assay Range	2pmol/L to 32pmol/L
Storage Requirements	Store the unopened product at 2° to 8°C. Protect from light. Do not use past expiration date.
For Use With (Application)	ELISA

1,907

Invitrogen™ Human PSA (Free)/KLK3 ELISA Kit

ELISA

Pricing & Availability
Specifications

Protein Aliases	PSA, Gamma-seminoprotein, Seminin, Kallikrein-3, P-30 antigen, Semenogelase
Immunoassay Kit Format	Sandwich ELISA Kit
Target Species	Human
Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10%
Gene Symbol	KLK3
Total Assay Time	4 hr 45 min
Assay Sensitivity	45 pg/mL
Storage Requirements	Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C
Assay Range	45-12000 pg/mL
Test Time	1 hr 20 min
Accession Number	P07288
Regulatory Status	RUO
Target	PSA
Kit Contents	Pre-coated 96 well plate, Standard, Assay Diluent concentrate, Biotinylated Detection Antibody, SAV-HRP, Wash Buffer, Chromogen, Stop Solution, Adhesive Plate Covers,Standard,Assay Diluent concentrate,Biotinylated Detection Antibody,SAV-HRP,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
Gene Alias	Antigen; antigen, prostate specific; APS; Fletcher factor; gamma-seminoprotein; hK3; Kal3; Kal-3; Kallikrein 3; kallikrein 3, plasma; kallikrein B, plasma 1; kallikrein related peptidase 3; kallikrein-3; Kallikrein-3 (KLK3); kallikrein-related peptidase 3; Kalp1; KALP15; Kininogenin; KLK2A1; Klk3; KLK-3; Klkb1; P-30 antigen; Pk; Plasma kallikrein; Plasma kallikrein heavy chain; Plasma kallikrein light chain; Plasma prekallikrein; prostate specific antigen; prostate-specific (APS); prostate-specific antigen; PSA; Semenogelase; semininAntigen; antigen, prostate specific; APS; Fletcher factor; gamma-seminoprotein; hK3; Kal3; Kal-3; Kallikrein 3; kallikrein 3, plasma; kallikrein B, plasma 1; kallikrein related peptidase 3; kallikrein-3; Kallikrein-3 (KLK3); kallikrein-related peptidase 3; Kalp1; KALP15; Kininogenin; KLK2A1; Klk3; KLK-3; Klkb1; P-30 antigen; Pk; Plasma kallikrein; Plasma kallikrein heavy chain; Plasma kallikrein light chain; Plasma prekallikrein; prostate specific antigen; prostate-specific (APS); prostate-specific antigen; PSA; Semenogelase; seminin;
Product Type	ELISA
For Use With (Equipment)	Absorbance Microplate Reader
Gene ID (Entrez)	354
Sample Type	Plasma,Serum,Supernatant
Label or Dye	Biotin

1,908

Invitrogen™ Rat IgG (Total) Uncoated ELISA Kit

ELISA

Pricing & Availability
Specifications

Immunoassay Kit Format	Uncoated ELISA Kit
Target Species	Rat
Conjugate	HRP
Total Assay Time	24 hr 30 min
Assay Sensitivity	1.6 ng/mL
Storage Requirements	2-8°C
Assay Range	1.6-100 ng/mL
Test Time	1 hr 45 min
Regulatory Status	RUO
Target	Rat IgG
Kit Contents	Capture Antibody: Pre-titrated, purified antibody, Detection Antibody: Pre-titrated, HRP-conjugated antibody, Standard: Recombinant protein for generating standard curve and calibrating samples, 10X Coating Buffer: Buffer for plating the Capture Antibody, 5X ELISA/ELISPOT Diluent: Buffer for blocking and diluting the Detection Antibody and Enzyme, Substrate: 1X TMB Solution, Certificate of Analysis: Lot-specific instructions for dilution of antibodies and standards, 96 Well Plate: High affinity 96-well plate (included with product Cat. Nos. ending in suffixes -22, -76, -86),Purified antibody,Detection Antibody: Pre-titrated,HRP-conjugated antibody,Standard: Recombinant protein for generating standard curve and calibrating samples,10X Coating Buffer: Buffer for plating the Capture Antibody,5X ELISA/ELISPOT Diluent: Buffer for blocking and diluting the Detection Antibody and Enzyme,Substrate: 1X TMB Solution,Certificate of Analysis: Lot-specific instructions for dilution of antibodies and standards,96 Well Plate: High affinity 96-well plate (included with product Cat. Nos. ending in suffixes -22, -76, -86)
Gene Alias	Immunoglobulin G; ImmunoglobulinGImmunoglobulin G; ImmunoglobulinG;
Product Type	ELISA
For Use With (Equipment)	Absorbance Microplate Reader
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP

1,909

Invitrogen™ Human TNF beta ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Interassay CV	10.2%
Intraassay CV	8%
Gene Symbol	LTA
Total Assay Time	4 hr 10 min
Sample Volume	Plasma 100 μL, Serum 100 μL, Supernatant 100 μL
Assay Sensitivity	4.6 pg/mL
Storage Requirements	2-8°C
Assay Range	15.6-1000 pg/mL
For Use With (Application)	ELISA
Test Time	1 hr 20 min
Accession Number	P01374
Regulatory Status	RUO
Target	TNF beta
Kit Contents	Pre-coated 96 well plate, Standard, Sample Diluent, Assay Buffer concentrate, HRP-conjugated Detection Antibody, Wash Buffer, Chromogen, Stop Solution, Controls, Adhesive Plate Covers,Standard,Sample Diluent,Assay Buffer concentrate,HRP-conjugated Detection Antibody,Wash Buffer,Chromogen,Stop Solution,Controls,Adhesive Plate Covers
For Use With (Equipment)	Absorbance Microplate Reader
Product Type	ELISA
Gene ID (Entrez)	4049
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP
Synonym	Lymphotoxin-alpha, TNF superfamily member 1

1,910

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Invitrogen™ Mouse Epiregulin (EREG) ELISA Kit

ELISA

Pricing & Availability
Specifications

Protein Family	Growth Factors & Receptors
Target Species	Mouse
Conjugate	HRP
Intraassay CV	<10%
Total Assay Time	4 hr 45 min
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 100 μL
Assay Sensitivity	10 pg/mL
Research Discipline	Angiogenesis
For Use With (Application)	ELISA, Protein Assays, Protein Biology, Cancer Biology, Immunology, Neuroscience, Neurobiology, Protein Detection, Protein Analysis
Test Time	1 hr 20 min
Assay	Solid-phase sandwich ELISA
Target	Epiregulin
Specificity	This ELISA kit shows no cross-reactivity with the following cytokines tested: Mouse CD30, L CD30, T CD40, CRG-2, CTACK, CXCL16, Eotaxin , Eotaxin-2, Fas Ligand, Fractalkine, GCSF, GM-CFS, IFN- gamma, IGFBP-3, IGFBP-5, IGFBP-6, IL-1 alpha, IL-1 beta, IL-2, IL-3, IL-3 Rb, IL-4, IL-5, IL-9, IL-10, IL-12 p40/p70, IL-12 p70, IL-13, IL-17, KC, Leptin R, LEPTIN(OB), LIX, L-Selectin, Lymphotactin, MCP-1, MCP- 5, M-CSF, MIG, MIP-1 alpha, MIP-1 gamma, MIP-2, MIP-3 beta, MIP-3 alpha, PF-4, PSelectin, RANTES, SCF, SDF-1 alpha, TARC, TCA-3, TECK, TIMP-1, TNF-alpha, TNF RI, TNF RII, TPO, VCAM-1, 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,Standard,Assay Diluent concentrate,Biotinylated Detection Antibody,SAV-HRP,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
For Use With (Equipment)	Absorbance Microplate Reader
Label or Dye	Biotin
Calibration Range	10 pg/mL to 6000 pg/mL
Interassay CV	<12%
Gene Symbol	Ereg
Storage Requirements	Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C
Assay Range	10-6000 pg/mL
Accession Number	Q61521
Regulatory Status	RUO
Product Type	ELISA
Gene ID (Entrez)	13874
Sample Type	Plasma,Serum,Supernatant
Synonym	EPR

1,911

Novus Biologicals™ Human BCMO1 ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability
Specifications

Storage Requirements	Storage of components varies. See protocol for specific instructions.

1,912

Novus Biologicals™ Human Isocitrate Dehydrogenase 1/IDH1 ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability

1,913

Novus Biologicals™ Rat Cardiac Troponin T ELISA Kit (Colorimetric)

Colorimetric Assay Kit

Pricing & Availability
Specifications

Assay Sensitivity	9.38 pg/mL
Assay Range	15.63 to 1000 pg/mL

1,914

Promotions Available

Invitrogen™ Human Cathepsin A/CTSA ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10%
Gene Symbol	CTSA
Total Assay Time	4 hr 45 min
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	0.016 ng/mL
Storage Requirements	Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C
Assay Range	0.016-10 ng/mL
Test Time	1 hr 20 min
Accession Number	P10619
Regulatory Status	RUO
Target	Cathepsin A
Kit Contents	Pre-coated 96 well plate, Standard, Assay Diluent concentrate, Biotinylated Detection Antibody, SAV-HRP, Wash Buffer, Chromogen, Stop Solution, Adhesive Plate Covers,Standard,Assay Diluent concentrate,Biotinylated Detection Antibody,SAV-HRP,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
For Use With (Equipment)	Absorbance Microplate Reader
Product Type	ELISA
Gene ID (Entrez)	5476
Sample Type	Plasma,Serum,Supernatant
Label or Dye	Biotin

1,915

Novus Biologicals™ Human Wnt-5a ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability

1,916

Novus Biologicals™ Human transgelin 2 - Ready-To-Use ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability

1,917

Novus Biologicals™ Human VNN3 - Ready-To-Use ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability
Specifications

Storage Requirements	Storage of components varies. See protocol for specific instructions.

1,918

Novus Biologicals™ Human ACK1 ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability

1,919

Thermo Scientific™ CaptureSelect™ tPA Ligand Leakage ELISA

Thermo Scientific™ CaptureSelect™ tPA Ligand Leakage ELISA is designed to detect possible leached ligand of tissue plasminogen activator (tPA) purified using CaptureSelect tPA Affinity Matrix.

Pricing & Availability
Specifications

Shipping Condition	Dry Ice
Product Type	Ligand Leakage ELISA
Product Line	CaptureSelect

1,920

Invitrogen™ Mouse TIMP2 ELISA Kit

ELISA

Pricing & Availability
Specifications

Shipping Condition	Wet or Dry Ice
Immunoassay Kit Format	Sandwich ELISA Kit
Target Species	Mouse
Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10%
Gene Symbol	TIMP2
Total Assay Time	4 hr 45 min
Assay Sensitivity	80 pg/mL
Storage Requirements	Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C
Assay Range	0.0823-60 ng/mL
Test Time	1 hr 20 min
Accession Number	P25785
Regulatory Status	RUO
Target	TIMP2
Kit Contents	Pre-coated 96 well plate, Standard, Assay Diluent concentrate, Biotinylated Detection Antibody, SAV-HRP, Wash Buffer, Chromogen, Stop Solution, Adhesive Plate Covers,Standard,Assay Diluent concentrate,Biotinylated Detection Antibody,SAV-HRP,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
Gene Alias	Collagenase inhibitor; CSC-21K; D11Bwg1104e; DDC8; etID32613.12; fa96h09; Metalloproteinase inhibitor 2; metalloproteinase inhibitor 2a; metalloproteinase inhibitor precursor; metalloproteinase inhibitor TIMP-2; metalloproteinase-2; similar to metalloproteinase inhibitor; testicular secretory protein Li 57; TIMP 2; TIMP metallopeptidase inhibitor 2; TIMP metallopeptidase inhibitor 2a; TIMP2; Timp-2; TIMP-2 protein; timp2a; tissue inhibitor of matrix metalloproteinase-2; tissue inhibitor of metalloproteinase 2; tissue inhibitor of metalloproteinase 2 precursor; tissue inhibitor of metalloproteinase 2a; tissue inhibitor of metalloproteinase-2; tissue inhibitor of metalloproteinase-2 precursor; tissue inhibitor of metalloproteinases 2; tissue inhibitor of mettaloproteinase 2; wu:fa96h09; zgc:136726Collagenase inhibitor; CSC-21K; D11Bwg1104e; DDC8; etID32613.12; fa96h09; Metalloproteinase inhibitor 2; metalloproteinase inhibitor 2a; metalloproteinase inhibitor precursor; metalloproteinase inhibitor TIMP-2; metalloproteinase-2; similar to metalloproteinase inhibitor; testicular secretory protein Li 57; TIMP 2; TIMP metallopeptidase inhibitor 2; TIMP metallopeptidase inhibitor 2a; TIMP2; Timp-2; TIMP-2 protein; timp2a; tissue inhibitor of matrix metalloproteinase-2; tissue inhibitor of metalloproteinase 2; tissue inhibitor of metalloproteinase 2 precursor; tissue inhibitor of metalloproteinase 2a; tissue inhibitor of metalloproteinase-2; tissue inhibitor of metalloproteinase-2 precursor; tissue inhibitor of metalloproteinases 2; tissue inhibitor of mettaloproteinase 2; wu:fa96h09; zgc:136726; D11Bwg1104e; Timp-2
Product Type	ELISA
For Use With (Equipment)	Absorbance Microplate Reader
Gene ID (Entrez)	21858
Sample Type	Plasma,Serum,Supernatant
Label or Dye	Biotin

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Thermo Scientific™ CaptureSelect™ tPA Ligand Leakage ELISA Greener ChoiceOffers one or more environmental benefits itemized in the U.S. FTC “Green Guides.”Learn More

Thermo Scientific™ CaptureSelect™ tPA Ligand Leakage ELISA