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 (132,382)

Singleplex and Multiplex Bead Based Immunoassays (6,180)

ELISA Substrates and Reagents (2,368)

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451 – 465 of 138,315 results

451

Novus Biologicals™ Porcine Neutrophil Elastase/ELA2 ELISA Kit (Colorimetric)

Colorimetric Assay Kit

Pricing & Availability
Specifications

Assay Sensitivity	0.94 ng/mL
Assay Range	1.56 to 100 ng/mL

452

Invitrogen™ PGD2 Competitive ELISA Kit

ELISA

Pricing & Availability
Specifications

Shipping Condition	Wet or Dry Ice
Immunoassay Kit Format	Sandwich ELISA Kit
Target Species	All Species
Conjugate	HRP
Interassay CV	<10%
Intraassay CV	<10%
Total Assay Time	2 hr 30 min
Assay Sensitivity	9.38 pg/mL
Storage Requirements	Refer to product documentation for component specific storage temperature.
Assay Range	15.63-1000 pg/mL
Test Time	1 hr 20 min
Regulatory Status	RUO
Target	PGD2
Kit Contents	Pre-coated 96 well plate, Standard, Biotinylated Detection Antibody, HRP Conjugate, Standard & Sample Diluent, Biotinylated Detection Antibody Diluent, HRP Conjugate Diluent, Wash Buffer, TMB Substrate, Stop Solution, Plate Sealer,Standard,Biotinylated Detection Antibody,HRP Conjugate,Standard & Sample Diluent,Biotinylated Detection Antibody Diluent,HRP Conjugate Diluent,Wash Buffer,TMB Substrate,Stop Solution,Plate Sealer
Gene Alias	21kDa; Beta-trace protein; cerebrin-28; Glutathione-independent PGD synthase; glutathione-independent PGD synthetase; lipocalin-type prostaglandin D synthase; lipocalin-type prostaglandin-D synthase; LPGDS; L-PGDS; PDS; PGD2; PGD2 synthase; PGDS; PGDS2; PH2DISO; Prostaglandin D synthase; prostaglandin D2 synthase; prostaglandin D2 synthase (21 kDa, brain); prostaglandin D2 synthase (brain); prostaglandin D2 synthase 21kDa (brain); prostaglandin-D2 synthase; Prostaglandin-H2 D-isomerase; Ptgds; Ptgs3; testis tissue sperm-binding protein Li 63n21kDa; Beta-trace protein; cerebrin-28; Glutathione-independent PGD synthase; glutathione-independent PGD synthetase; lipocalin-type prostaglandin D synthase; lipocalin-type prostaglandin-D synthase; LPGDS; L-PGDS; PDS; PGD2; PGD2 synthase; PGDS; PGDS2; PH2DISO; Prostaglandin D synthase; prostaglandin D2 synthase; prostaglandin D2 synthase (21 kDa, brain); prostaglandin D2 synthase (brain); prostaglandin D2 synthase 21kDa (brain); prostaglandin-D2 synthase; Prostaglandin-H2 D-isomerase; Ptgds; Ptgs3; testis tissue sperm-binding protein Li 63n;
Product Type	ELISA
For Use With (Equipment)	Absorbance Microplate Reader
Sample Type	Plasma,Serum
Label or Dye	Biotin

453

Novus Biologicals™ Mouse NT-proBNP ELISA Kit (Colorimetric)

Mouse proBNP ELISA Kit (Colorimetric) from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability

454

Invitrogen™ Human Tryptase beta-2/TPSB2 ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10%
Gene Symbol	Tpsb2
Total Assay Time	4 hr 45 min
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	2 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	2-500 ng/mL
Test Time	1 hr 20 min
Accession Number	P20231
Regulatory Status	RUO
Target	TPSB2
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)	64499
Sample Type	Plasma,Serum,Supernatant
Label or Dye	Biotin

455

Novus Biologicals™ Monkey E6AP/UBE3A ELISA Kit (Colorimetric)

Colorimetric Assay Kit

Pricing & Availability
Specifications

Assay Sensitivity	0.19 ng/mL
Assay Range	0.31 to 20 ng/mL

456

Invitrogen™ Monkey C3a ELISA Kit

ELISA

Pricing & Availability
Specifications

Shipping Condition	Wet Ice
Immunoassay Kit Format	Sandwich ELISA Kit
Target Species	Monkey
Conjugate	HRP
Interassay CV	<10%
Intraassay CV	<10%
Total Assay Time	3 hr 30 min
Assay Sensitivity	0.09 ng/mL
Storage Requirements	Refer to product documentation for component specific storage temperature.
Assay Range	0.16-10 ng/mL
Test Time	1 hr 20 min
Regulatory Status	RUO
Target	Complement C3a
Kit Contents	Micro ELISA Plate (Dismountable), Reference Standard , Concentrated Biotinylated Detection Ab(100x), Concentrated HRP Conjugate (100x), Reference Standard & Sample Diluent, Biotinylated Detection Ab Diluent, HRP Conjugate Diluent, Concentrated Wash Buffer(25x), Substrate Reagent, Stop Solution, Plate Sealer, Product Description, Certificate of Analysis,Reference Standard,Concentrated Biotinylated Detection Ab(100x),Concentrated HRP Conjugate (100x),Reference Standard & Sample Diluent,Biotinylated Detection Ab Diluent,HRP Conjugate Diluent,Concentrated Wash Buffer(25x),Substrate Reagent,Stop Solution,Plate Sealer,Product Description,Certificate of Analysis
Gene Alias	Acylation stimulating protein; acylation-stimulating protein cleavage product; AHUS5; AI255234; ARMD9; ASP; C3; C3 and PZP-like alpha-2-macroglobulin domain-containing protein 1; C3a; C3a anaphylatoxin; C3adesArg; C3b; C3bc; C3-beta-c; C3r1; Complement C3; complement C3 alpha chain; Complement C3 beta chain; complement C3 protein (GPC3) precursor; Complement C3b alpha' chain; Complement C3c alpha' chain fragment 1; Complement C3c alpha' chain fragment 2; Complement C3d fragment; Complement C3dg fragment; Complement C3f fragment; Complement C3g fragment; complement component 3; complement component C3 alpha-chain; complement component C3a; complement component C3b; CPAMD1; epididymis secretory sperm binding protein Li 62p; HEL-S-62p; HSE-MSF; Plp; prepro-C3Acylation stimulating protein; acylation-stimulating protein cleavage product; AHUS5; AI255234; ARMD9; ASP; C3; C3 and PZP-like alpha-2-macroglobulin domain-containing protein 1; C3a; C3a anaphylatoxin; C3adesArg; C3b; C3bc; C3-beta-c; C3r1; Complement C3; complement C3 alpha chain; Complement C3 beta chain; complement C3 protein (GPC3) precursor; Complement C3b alpha' chain; Complement C3c alpha' chain fragment 1; Complement C3c alpha' chain fragment 2; Complement C3d fragment; Complement C3dg fragment; Complement C3f fragment; Complement C3g fragment; complement component 3; complement component C3 alpha-chain; complement component C3a; complement component C3b; CPAMD1; epididymis secretory sperm binding protein Li 62p; HEL-S-62p; HSE-MSF; Plp; prepro-C3;
Product Type	ELISA
For Use With (Equipment)	Absorbance Microplate Reader
Sample Type	Plasma,Serum
Label or Dye	Biotin

457

R&D Systems™ Human CD163 Quantikine ELISA Kit

Human CD163 Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability

458

R&D Systems™ Human Serum Amyloid A1 DuoSet ELISA

Human Serum Amyloid A1 DuoSet ELISA from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability

459

R&D Systems™ Human CD25/IL-2R alpha Quantikine ELISA Kit

Human CD25/IL-2 R alpha Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Sample Volume	Cell Culture Supernates (10uL),Serum (13uL),EDTA Plasma (13uL),Heparin Plasma (13uL)
Assay Sensitivity	10pg/mL
Storage Requirements	Store the unopened product at 2° to 8°C. Do not use past expiration date.
Assay Range	78.00 - 5000pg/mL
For Use With (Application)	ELISA
Target	CD25/IL-2R alpha
Specificity	Natural and Recombinant Human IL-2 sR alpha
Product Type	Solid Phase Sandwich ELISA
Gene ID (Entrez)	3559
Sample Type	Cell Culture Supernatant,Plasma (EDTA, Heparin),Serum
Synonym	CD25, CD25 antigen, IDDM10, IL-2 R alpha, IL-2 receptor subunit alpha, IL2R, IL2R alpha, IL-2 R subunit alpha, IL-2 Ra, IL2RA, IL-2-RA, IL2-RA, interleukin 2 receptor, alpha, interleukin-2 receptor subunit alpha, p55, TAC antigen, TCGFR
Cross Reactivity	Cross-species reactivity not tested. <0.5% cross-reactivity observed with available related molecules.

460

Novus Biologicals™ Bovine Fibrinogen ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability

461

Novus Biologicals™ Human Tau ELISA Kit (Colorimetric)

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

Pricing & Availability

462

BD ELISA Set

To develop enzyme-linked immunosorbent assays for natural C5b-9 in serum, plasma, and other biological samples

Pricing & Availability

463

Invitrogen™ Human SCF ELISA Kit

ELISA

Pricing & Availability
Specifications

Protein Family	Growth Factors & Receptors
Target Species	Human
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	2 pg/mL
Research Discipline	Immunology
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	SCF
Specificity	This ELISA kit shows no cross-reactivity with any of the cytokines tested: Human Angiogenin, BDNF, BLC, ENA-78, FGF-4, IL-1 alpha, IL-1 beta, IL-2, IL-3, IL-4, IL-5, IL-7, IL-8, IL-9, IL-11, IL-12 p70, IL- 12 p40, IL-13, IL-15, IL-309, IP-10, G-CSF, GM-CSF, IFN-gamma, Leptin (OB), MCP-1, MCP-2, MCP-3, MDC, MIP-1 alpha, MIP-1 beta, MIP-1 delta, PARC, PDGF, RANTES, 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,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	2 pg/mL to 2000 pg/mL
Interassay CV	<12%
Gene Symbol	KITLG
Storage Requirements	Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C
Assay Range	2-2000 pg/mL
Accession Number	P21583
Regulatory Status	RUO
Product Type	ELISA
Gene ID (Entrez)	4254
Sample Type	Plasma,Serum,Supernatant
Synonym	FPH2, KL-1, Kitl, MGF, SCF, SF, SHEP7

464

Invitrogen™ Human ApoB ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10%
Gene Symbol	APOB
Total Assay Time	4 hr 45 min
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	0.21 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	0.21-50 ng/mL
Test Time	1 hr 20 min
Accession Number	P04114
Regulatory Status	RUO
Target	Apolipoprotein B
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)	338
Sample Type	Plasma,Serum,Supernatant
Label or Dye	Biotin

465

Invitrogen™ Human HSPA4 (HSP70) ELISA Kit

ELISA

Pricing & Availability
Specifications

Protein Family	Mitochondrial Proteins
Target Species	Human
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	2 ng/mL
Research Discipline	Cell Cycle & Proliferation
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	HSPA4
Specificity	This ELISA pair antibody also can recognize mouse and rat HSP70
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	2 ng/mL to 600 ng/mL
Interassay CV	<12%
Gene Symbol	HSPA4
Storage Requirements	Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C
Assay Range	2.469-600 ng/mL
Accession Number	P34932
Regulatory Status	RUO
Product Type	ELISA
Gene ID (Entrez)	3308
Sample Type	Plasma,Serum,Supernatant
Synonym	APG-2, HEL-S-5 A, HS24/P52, HSPH2, RY, hsp70, hsp70RY

Immunoassay Reagents and Kits

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R&D Systems™ Human CD25/IL-2R alpha Quantikine ELISA Kit GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Human CD25/IL-2R alpha Quantikine ELISA Kit