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 (85,478)

Singleplex and Multiplex Bead Based Immunoassays (5,718)

ELISA Substrates and Reagents (2,191)

31 – 45 of 90,908 results

Invitrogen™ Creatinine Urinary Detection Kit

Assay Urinary Creatinine levels in Human, Monkey, Dog, and Rat Urine.

Pricing & Availability
Specifications

Shipping Condition	Approved for shipment on Wet or Dry Ice
Immunoassay Kit Format	Colorimetric Detection Kit
Content And Storage	96-well plate(s), standard, other assay specific reagents, buffers, and lot-specific technical data sheet. Store at –20°C.
For Use With (Equipment)	Microplate Reader
Product Type	Creatinine Urinary Detection Kit
Gene ID (Entrez)	Non-Gene
Sample Type	Urine
Gene Symbol	Non-Gene
Target Kit Named	Creatinine Urinary
Detection Method	Colorimetric

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Invitrogen™ Cell Lysis Buffer II

Cell Lysis Buffer II is a high-quality, ready-to-use lysis buffer suitable for the preparation of cell extracts for ELISA, western blotting, and antibody bead immunoassays (Luminex) applications.

Pricing & Availability

Invitrogen™ Human FAK (Phospho) [pY397] ELISA Kit

ELISA

Pricing & Availability

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

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

Pricing & Availability
Specifications

Specificity	Natural and Recombinant Human TNF-alpha
Target Species	Human
Conjugate	HRP
Product Type	Solid Phase Sandwich ELISA
Gene ID (Entrez)	3558
Sample Type	Cell Culture Supernatant,Plasma (EDTA, Citrate, Heparin),Serum
Sample Volume	Cell Culture Supernates (100uL),Serum (100uL),EDTA Plasma (100uL),Heparin Plasma (100uL),Citrate Plasma (100uL)
Synonym	aldesleukin, IL2, IL-2 lymphokine, interleukin 2, interleukin-2, involved in regulation of T-cell clonal expansion, T cell growth factor, T-cell growth factor, TCGF
Assay Sensitivity	7pg/mL
Storage Requirements	Store the unopened product at 2° to 8°C. Do not use past expiration date.
Assay Range	31.20 - 2000pg/mL
For Use With (Application)	ELISA
Cross Reactivity	<50% cross-species reactivity observed with species tested. <0.5% cross-reactivity observed with available related molecules.

Invitrogen™ Human HMGB-1 ELISA Kit

ELISA

Pricing & Availability
Specifications

For Use With (Equipment)	Colorimetric Microplate Reader
Gene ID (Entrez)	3146
Interassay CV	<10%
Intraassay CV	<10
Assay Sensitivity	18.75 pg/mL
Assay Range	31.25 to 2000 pg/mL

Invitrogen™ Human Cortisol Competitive ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Description	Cortisol Competitive ELISA Kit
Interassay CV	8.1%
Intraassay CV	8.8
Total Assay Time	1 hrs 30 mins
Sample Volume	Fecal Extract 50 μL, Plasma 1 μL, Saliva 12.5 μL, Serum 1 μL, Supernatant 50 μL, Urine 6.25 μL
Assay Sensitivity	17.3 pg/mL
Storage Requirements	-20°C
Research Discipline	Inflammation
Assay Range	100 to 3200 pg/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	Cortisol
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,Saliva,Serum,Supernatant,Urine
Label or Dye	HRP

R&D Systems™ Mouse TIM-1/KIM-1/HAVCR Quantikine ELISA Kit

Mouse TIM-1/KIM-1/HAVCR Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability

Invitrogen™ Human PSA (Total)/KLK3 ELISA Kit

ELISA

Pricing & Availability
Specifications

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	8 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 hrs 20 mins
Assay	Solid-phase sandwich ELISA
Target	PSA
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
Calibration Range	8 pg/mL to 2000 pg/mL
Interassay CV	<12%
Gene Symbol	KLK3
Storage Requirements	2°C to 8°C
Assay Range	10.24 to 2500 pg/mL
Accession Number	P07288
Regulatory Status	RUO
Product Type	ELISA
Gene ID (Entrez)	354
Sample Type	Plasma,Serum,Supernatant
Synonym	APS, KLK2A1, PSA, hK3

Invitrogen™ Human Insulin ELISA Kit

ELISA

Pricing & Availability

R&D Systems™ Mouse C-Reactive Protein/CRP Quantikine ELISA Kit

For the quantitative determination of mouse C-Reactive Protein (CRP) concentrations in cell culture supernates, tissue lysates, serum, and plasma

Pricing & Availability

Invitrogen™ Human Arginase-1 ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Interassay CV	8.5%
Intraassay CV	6.6%
Gene Symbol	ARG1
Total Assay Time	3 hr 30 min
Sample Volume	Cell Lysate 50 μL, Plasma 50 μL, Serum 50 μL
Assay Sensitivity	20.81 pg/mL
Storage Requirements	2-8°C
Assay Range	78.1-5000 pg/mL
Test Time	1 hr 20 min
Accession Number	P05089
Regulatory Status	RUO
Target	Arginase 1
Kit Contents	Pre-coated 96 well plate, Standard (2 vials), Sample Diluent, Assay Buffer concentrate, Biotinylated Detection Antibody, Streptavidin-HRP, Wash Buffer, Substrate Solution, Stop Solution, Adhesive Plate Covers,Standard (2 vials),Sample Diluent,Assay Buffer concentrate,Biotinylated Detection Antibody,Streptavidin-HRP,Wash Buffer,Substrate Solution,Stop Solution,Adhesive Plate Covers
For Use With (Equipment)	Absorbance Microplate Reader
Product Type	ELISA
Gene ID (Entrez)	383
Sample Type	Cell Lysates,Plasma,Serum
Label or Dye	Biotin

Invitrogen™ Cytokine 25-Plex Human Panel

Specifically designed for quantifying human cytokines and chemokines in serum, plasma, and tissue culture supernatant

Pricing & Availability

Invitrogen™ Human TNF alpha ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Interassay CV	7.5%
Intraassay CV	4.4
Incubation Time	4 hr.
Gene Symbol	DIF-alpha,TNFA,TNFSF2,TNLG1F,TNF
Total Assay Time	4 hrs
Sample Volume	Plasma 100 μL, Serum 100 μL, Supernatant 100 μL
Assay Sensitivity	1.7 pg/mL
Storage Requirements	2°C to 8°C
Assay Range	15.6 to 1000 pg/mL
Marker Gene	TNF-α
For Use With (Application)	Colorimetric Detection
Test Time	1 hrs 20 mins
Accession Number	P01375
Regulatory Status	RUO
Target	TNF alpha
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
For Use With (Equipment)	Colorimetric Microplate Reader
Product Type	ELISA
Gene ID (Entrez)	7124
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP

Invitrogen™ Human EGF ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Interassay CV	5.3%
Intraassay CV	4.4
Incubation Time	4 hr.
Gene Symbol	HOMG4,URG
Total Assay Time	4 hrs
Sample Volume	Plasma 100 μL, Serum 100 μL, Supernatant 100 μL, Urine 10 μL
Assay Sensitivity	<1 pg/mL
Storage Requirements	2°C to 8°C
Assay Range	3.9 to 250 pg/mL
Marker Gene	EGF
For Use With (Application)	Colorimetric Detection
Test Time	1 hrs 20 mins
Accession Number	P01133
Regulatory Status	RUO
Target	EGF
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
For Use With (Equipment)	Colorimetric Microplate Reader
Product Type	ELISA
Gene ID (Entrez)	1950
Sample Type	Plasma,Serum,Supernatant,Urine
Label or Dye	HRP

Invitrogen™ Human VEGF ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Interassay CV	8.1%
Intraassay CV	4.7
Incubation Time	4 hr.
Gene Symbol	MVCD1,VEGF,VPF
Total Assay Time	4 hrs
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	<5 pg/mL
Storage Requirements	2°C to 8°C
Assay Range	23.4 to 1500 pg/mL
Marker Gene	VEGF
For Use With (Application)	Colorimetric Detection
Test Time	1 hrs 20 mins
Accession Number	P15692
Regulatory Status	RUO
Target	VEGF
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
For Use With (Equipment)	Colorimetric Microplate Reader
Product Type	ELISA
Gene ID (Entrez)	7422
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP

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Immunoassay Reagents and Kits

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

R&D Systems™ Mouse C-Reactive Protein/CRP Quantikine ELISA Kit GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

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

R&D Systems™ Mouse C-Reactive Protein/CRP Quantikine ELISA Kit