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 (135,140)

Singleplex and Multiplex Bead Based Immunoassays (6,198)

ELISA Substrates and Reagents (2,229)

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1,591 – 1,605 of 141,012 results

1,591

Novus Biologicals™ Human, Mouse, Rat GRP78/HSPA5 ELISA Kit (Colorimetric)

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

Pricing & Availability

1,592

Invitrogen™ Human Prostaglandin E2 Competitive ELISA Kit

ELISA

Pricing & Availability
Specifications

For Use With (Equipment)	Colorimetric Microplate Reader
Interassay CV	4%
Intraassay CV	10.7
Assay Sensitivity	13.4 pg/mL
Assay Range	39.1 to 2500 pg/mL

1,593

Invitrogen™ Human IL1RA ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Interassay CV	7.4%
Intraassay CV	7.2
Gene Symbol	DIRA,ICIL-1 RA,IL-1 RN,IL-1 ra,IL-1 ra3,IL1F3,IL1RA,IRAP,MVCD4
Total Assay Time	3 hrs 30 mins
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	30 pg/mL
Storage Requirements	2°C to 8°C
Assay Range	109 to 7,000 pg/mL
For Use With (Application)	ELISA
Test Time	1 hrs 20 mins
Accession Number	P18510
Regulatory Status	RUO
Target	IL1RA
Kit Contents	Pre-coated 96 well plate,Standard,Sample Diluent,Assay Buffer 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)	3557
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP
Synonym	Interleukin-1 receptor antagonist

1,594

Novus Biologicals™ Porcine Coagulation Factor III/Tissue Factor ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability

1,595

R&D Systems™ Human IFN-alpha Multi-Subtype ELISA Kit

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

Pricing & Availability

1,596

Invitrogen™ Pregnanediol-3-Glucuronide (PDG) Competitive ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Description	Pregnanediol-3-Glucuronide (PDG) Competitive ELISA Kit
Interassay CV	6.4%
Intraassay CV	4.1
Total Assay Time	2 hrs 30 mins
Sample Volume	Fecal Extract 50 μL, Plasma 50 μL, Serum 50 μL, Supernatant 50 μL, Urine 10 μL
Assay Sensitivity	0.18 ng/mL
Storage Requirements	-20°C
Research Discipline	Reproductive Biology
Assay Range	0.391 to 50 ng/mL
For Use With (Application)	ELISA, Protein Assays, Aktivity Assays, Protein Biology, Reproductive Biology, Inflammation, Oxidative Stress, Metabolism, Cell Signaling, Epigenetics, Hematology, DNA Damage, Cancer Biology, Immunology, Neuroscience, Neurobiology, Steroid Hormone Detecti
Test Time	1 hrs 20 mins
Detection Method	Fluorescence
Regulatory Status	RUO
Target	Pregnanediol-3-Glucuronide
Kit Contents	Pre-coated 96 well plate,Standard,Assay Diluent concentrate,HRP-Conjugated Detection Antibody,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
For Use With (Equipment)	Colorimetric Microplate Reader
Product Type	ELISA
Sample Type	Fecal Extract,Plasma,Serum,Supernatant,Urine
Label or Dye	HRP

1,597

Invitrogen™ Mouse Ig Isotyping Uncoated ELISA Kit with Plates

ELISA

Pricing & Availability

1,598

Invitrogen™ Human SIGLEC5 ELISA Kit

ELISA

Pricing & Availability
Specifications

Protein Family	Other Proteins
Target Species	Human
Conjugate	HRP
Intraassay CV	<10%
Total Assay Time	4 hr 45 min
Sample Volume	Plasma 1 μL, Serum 1 μL, Supernatant 100 μL
Assay Sensitivity	8 pg/mL
Research Discipline	Other Research
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	SIGLEC5
Specificity	This ELISA kit shows no cross-reactivity with the following 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-6, 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, SCF, 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	8 pg/mL to 5000 pg/mL
Interassay CV	<12%
Gene Symbol	SIGLEC5
Storage Requirements	Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C
Assay Range	8-5000 pg/mL
Accession Number	O15389
Regulatory Status	RUO
Product Type	ELISA
Gene ID (Entrez)	8778
Sample Type	Plasma,Serum,Supernatant
Synonym	CD170, CD33L2, OB-BP2, OBBP2, SIGLEC-5

1,599

Promotions Available

R&D Systems™ Mouse/Rat IL-33 Quantikine ELISA Kit

Mouse/Rat IL-33 Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability

1,600

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 hrs 45 mins
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 hrs 20 mins
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
For Use With (Equipment)	Colorimetric Microplate Reader
Label or Dye	HRP
Calibration Range	2 pg/mL to 2000 pg/mL
Interassay CV	<12%
Gene Symbol	DCUA,DFNA69,FPH2,FPHH,KL-1,Kitl,MGF,SCF,SF,SHEP7
Storage Requirements	2°C to 8°C
Assay Range	2.74 to 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

1,601

Invitrogen™ Human WIF-1 ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10
Gene Symbol	WIF1
Total Assay Time	4 hrs 45 mins
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	0.1 ng/mL
Storage Requirements	2°C to 8°C
Assay Range	0.1 to 25 ng/mL
Test Time	1 hrs 20 mins
Accession Number	AW107799; UNQ191/PRO217; WIF; Wif1; WIF-1; Wnt inhibitory factor 1
Regulatory Status	RUO
Target	WIF1
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)	11197
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP

1,602

Invitrogen™ Human Wnt-9a ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10
Gene Symbol	WNT9A
Total Assay Time	4 hrs 45 mins
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	0.75 ng/mL
Storage Requirements	2°C to 8°C
Assay Range	0.75 to 150 ng/mL
Test Time	1 hrs 20 mins
Accession Number	MGC138165; MGC141991; Protein Wnt-14; Protein Wnt-9 A; wingless related MMTV integration site 9 A; wingless-type MMTV integration site 14; wingless-type MMTV integration site 9 A; wingless-type MMTV integration site family member 9 A; wingless-type MMTV integration site family, member 14; wingless-type MMTV integration site family, member 9 A; Wnt family member 9 A; WNT14; wnt-14; WNT9A
Regulatory Status	RUO
Target	WNT9A
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)	7483
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP

1,603

Invitrogen™ Human TGF alpha ELISA Kit

ELISA

Pricing & Availability

1,604

R&D Systems™ Mouse Sonic Hedgehog/Shh N-Terminus Quantikine ELISA Kit

Mouse Sonic Hedgehog/Shh N-Terminus Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability

1,605

Novus Biologicals™ Canine HGF ELISA Kit (Colorimetric)

Colorimetric ELISA Kit

Pricing & Availability

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Novus Biologicals™ Human, Mouse, Rat GRP78/HSPA5 ELISA Kit (Colorimetric) Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Novus Biologicals™ Porcine Coagulation Factor III/Tissue Factor ELISA Kit (Colorimetric) Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Novus Biologicals™ Canine HGF ELISA Kit (Colorimetric) Small and Specialty Supplier PartnerSmall and/or specialty supplier based on Federal laws and SBA requirements.Learn More

Novus Biologicals™ Human, Mouse, Rat GRP78/HSPA5 ELISA Kit (Colorimetric)

Novus Biologicals™ Porcine Coagulation Factor III/Tissue Factor ELISA Kit (Colorimetric)

Novus Biologicals™ Canine HGF ELISA Kit (Colorimetric)