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)

46 – 60 of 90,908 results

R&D Systems™ Human TNF-alpha Quantikine ELISA Kit

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

Pricing & Availability

R&D Systems™ Human CTGF/CCN2 DuoSet ELISA

Human CTGF/CCN2 DuoSet ELISA from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability

R&D Systems™ Endothelin-1 Quantikine ELISA Kit

Endothelin-1 Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability
Specifications

Specificity	Synthetic and Natural Endothelin-1
Target Species	Multi-species
Conjugate	HRP
Product Type	ELISA Kit
Sample Type	Cell Culture Supernatant,Plasma (EDTA, Heparin),Serum,Urine
Sample Volume	Cell Culture Supernates (75uL),Serum (75uL),EDTA Plasma (75uL),Heparin Plasma (75uL),Urine (75uL)
Synonym	ARCND3, EDN1, endothelin 1, endothelin-1, ET1, HDLCQ7, PPET1, Preproendothelin-1, QME
Assay Sensitivity	0.207pg/mL
Storage Requirements	Store the unopened product at 2° to 8°C. Do not use past expiration date.
Assay Range	0.39 - 25pg/mL
For Use With (Application)	ELISA
Cross Reactivity	<50% cross-species reactivity observed with species tested. Cross-reactivity observed with 1 or more available related molecules.

R&D Systems™ Human IL-12 p70 Quantikine ELISA Kit

Human IL-12 p70 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 IL-12p70
Target Species	Human
Conjugate	HRP
Product Type	Solid Phase Sandwich ELISA
Gene ID (Entrez)	3592
Sample Type	Cell Culture Supernatant,Plasma (EDTA, Citrate, Heparin),Serum,Urine
Sample Volume	Cell Culture Supernates (200uL),Serum (200uL),EDTA Plasma (200uL),Heparin Plasma (200uL),Citrate Plasma (200uL),Urine (200uL)
Synonym	CLMF p35, Cytotoxic lymphocyte maturation factor 35 kDa subunit, IL12 p70, IL-12 subunit p35, IL-12, subunit p35, interleukin 12, p35, interleukin 12 A (natural killer cell stimulatory factor 1, cytotoxic lymphocytematuration factor 1, p35), interleukin-12 alpha chain, interleukin-12 subunit alpha, natural killer cell stimulatory factor 1, 35 kD subunit, NF cell stimulatory factor chain 1, NK cell stimulatory factor chain 1, NKSF1, p35
Assay Sensitivity	5pg/mL
Storage Requirements	Store the unopened product at 2° to 8°C. Do not use past expiration date.
Assay Range	7.80 - 500pg/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 TNF alpha (Total) ELISA Kit

ELISA

Pricing & Availability
Specifications

Target Species	Human
Conjugate	HRP
Interassay CV	8.1%
Intraassay CV	7.7
Gene Symbol	DIF-alpha,TNFA,TNFSF2,TNLG1F,TNF
Total Assay Time	3 hrs 10 mins
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	5.0 pg/mL
Storage Requirements	2°C to 8°C
Assay Range	23 to 1,500 pg/mL
For Use With (Application)	ELISA
Test Time	1 hrs 20 mins
Accession Number	P01375
Regulatory Status	RUO
Target	TNF alpha
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)	7124
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP
Synonym	Cachectin, Tumor necrosis factor alpha, DIF

R&D Systems™ Mouse S100A8/S100A9 Heterodimer DuoSet ELISA

Mouse S100A8/S100A9 Heterodimer DuoSet ELISA from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

Pricing & Availability

Invitrogen™ Human IL-10 ELISA Kit

ELISA

Pricing & Availability
Specifications

Measurement	Absorbance at 450 nm minus absorbance (at 550 nm)
Immunoassay Kit Format	Colorimetric ELISA (TMB substrate) with Plates
Target Species	Human
Conjugate	HRP
Description	Human IL-10 ELISA Kit
Interassay CV	<10%
Intraassay CV	<10
Gene Symbol	CSIF,GVHDS,IL-10 A,TGIF,IL10
Total Assay Time	3 hrs
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL, Urine 50 μL
Assay Sensitivity	<3 pg/mL
Storage Requirements	2°C to 8°C
Assay Range	15.36 to 600 pg/mL
Test Time	1 hrs 20 mins
Accession Number	P22301
Regulatory Status	RUO
Target	IL-10
Specificity	No significant cross-reaction with human IL-1 A, IL-2, IL-3, IL-4, IL-6, IL-7, IL-8, TNFa, TNFß or IFNg. Approx. 2% cross-reactivity with recombinant mouse IL-10
Kit Contents	Pre-coated 96 well plate,Standard,Assay Diluent concentrate,Biotinylated Detection Antibody,SAV-HRP,Wash Buffer,Chromogen,Stop Solution,Adhesive Plate Covers
Precision	Intra-assay CV <10%; inter-assay CV <10%
For Use With (Equipment)	Colorimetric Microplate Reader
Product Type	ELISA
Gene ID (Entrez)	3586
Sample Type	Plasma,Serum,Supernatant,Urine
Label or Dye	HRP

Invitrogen™ Mouse S100A8/S100A9 ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10
Gene Symbol	S100A8, S100A9
Total Assay Time	4 hrs 45 mins
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	0.65 ng/mL
Storage Requirements	2°C to 8°C
Assay Range	0.65 to 150 ng/mL
Test Time	1 hrs 20 mins
Accession Number	60B8Ag; AI323541; AW546964; B8Ag; BEE11; BEE22; Caga; Cagb; calgranulin A; calgranulin B; calgranulin-A; Calgranulin-B; calprotectin; calprotectin L1H subunit; Calprotectin L1L subunit; CFAG; CGLA; CGLB; Chemotactic cytokine CP-10; chemotactic S100 protein; CP-10; Cystic fibrosis antigen; EGK
Regulatory Status	RUO
Target	Calprotectin
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)	20201, 20202
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP

R&D Systems™ Mouse/Rat Cystatin C Quantikine ELISA Kit

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

Pricing & Availability

Invitrogen™ Human SARS-CoV-2 Spike (Trimer) IgG ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	<10%
Intraassay CV	<10
Total Assay Time	1 hrs 15 mins
Sample Volume	Plasma 5 μL, Serum 5 μL
Assay Sensitivity	<39 Units/mL
Storage Requirements	2°C to 8°C
Assay Range	234 to 15,000 Units/mL
Test Time	30 mins
Regulatory Status	RUO
Target	SARS-CoV-2 Spike (trimer) Protein
Kit Contents	Pre-coated 96 well plate,High Control (standard),Calibrator (medium control),Low Control,IgG - HRP conjugate,Assay Buffer concentrate,Wash Buffer concentrate,Substrate solution,Stop Solution,Adhesive Plate Covers
Gene Alias	Coronavirus; COVID; Covid 19; COVID19; COVID-19; SARS; SARS Coronavirus; SARS CoV; SARS CoV2; SARS CoV-2; SARS Spike Protein; SARS-CoV-2
For Use With (Equipment)	Colorimetric Microplate Reader
Product Type	ELISA
Sample Type	Plasma,Serum
Label or Dye	HRP

Invitrogen™ Mouse Amyloid beta 40 ELISA Kit

ELISA

Pricing & Availability

Invitrogen™ Superoxide Dismutase (SOD) Colorimetric Activity Kit

Assay Superoxide Dismutase (SOD) Activity in Serum, Plasma, Cells, Tissues and Erythrocyte Lysates.

Pricing & Availability
Specifications

Shipping Condition	Approved for shipment on Wet or Dry Ice
Immunoassay Kit Format	Assay Activity Kit
Content And Storage	96-well plate(s), standard, detection reagent, assay buffer, substrate, and lot-specific technical data sheet. Store at –20°C.
For Use With (Equipment)	Microplate Reader
Target Kit Named	Superoxide Dismutase (SOD)

Invitrogen™ Human Granzyme B ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	6.8%
Intraassay CV	6.2
Gene Symbol	GZMB
Total Assay Time	2 hrs 30 mins
Sample Volume	Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	<0.43 pg/mL
Storage Requirements	2°C to 8°C
Assay Range	0.7 to 480 pg/mL
Test Time	1 hrs
Accession Number	P10144
Regulatory Status	RUO
Target	Granzyme B
Kit Contents	Pre-coated 96 well plate,Standard,Detection antibody (monoclonal antibody to human Granzyme B),Biotin-Conjugate anti-human Granzyme B monoclonal antibody,Streptavidin-HRP,human Granzyme B Standard lyophilized,Wash Buffer Concentrate 20x,Dilution Buffer Concentrate 5x,Substrate Solution,Stop Solution,Adhesive Films
For Use With (Equipment)	Colorimetric Microplate Reader
Product Type	ELISA
Gene ID (Entrez)	3002
Sample Type	Serum,Supernatant
Label or Dye	HRP

Invitrogen™ Human MUC5AC ELISA Kit

ELISA

Pricing & Availability
Specifications

For Use With (Equipment)	Colorimetric Microplate Reader
Gene ID (Entrez)	4586
Interassay CV	<10%
Intraassay CV	<10
Assay Sensitivity	0.19 ng/mL
Assay Range	0.31 to 20 ng/mL

Invitrogen™ Human ALKP ELISA Kit

ELISA

Pricing & Availability
Specifications

Conjugate	HRP
Interassay CV	<12%
Intraassay CV	<10
Gene Symbol	ALPL
Total Assay Time	4 hrs 45 mins
Sample Volume	Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity	2 mIU/mL
Storage Requirements	2°C to 8°C
Assay Range	2 to 500 mIU/mL
Test Time	1 hrs 20 mins
Accession Number	Akp2; Akp-2; Alkaline phosphatase 2; alkaline phosphatase 2, liver; alkaline phosphatase liver/bone/kidney isozyme; alkaline phosphatase precursor (EC 3.1.3.2); alkaline phosphatase tissue non-specific isoform; alkaline phosphatase tissue non-specific isoform/TNS-AP; alkaline phosphatase, biomineralization associated; alkaline phosphatase, liver/bone/kidney; alkaline phosphatase, tissue-nonspecific isozyme; Alpl; APTNAP; AP-TNAP; FLJ40094; FLJ93059; glycerophosphatase; HOPS; liver/bone/kidney isozyme; liver/bone/kidney-type alkaline phosphatase; MGC161443; MGC167935; PHOA; tissue-nonspecific alkaline phosphatase; tissue-nonspecific ALP; Tissue-nonspecific ALP alkaline phosphatase; TNAP; TNSALP; TNS-AP
Regulatory Status	RUO
Target	ALPL
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)	249
Sample Type	Plasma,Serum,Supernatant
Label or Dye	HRP

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Immunoassay Reagents and Kits

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R&D Systems™ Endothelin-1 Quantikine ELISA Kit GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Human IL-12 p70 Quantikine ELISA Kit GSA/VA ContractAvailable on GSA/VA contract for Federal Government customers.Learn More

R&D Systems™ Endothelin-1 Quantikine ELISA Kit

R&D Systems™ Human IL-12 p70 Quantikine ELISA Kit