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 (131,835)

Singleplex and Multiplex Bead Based Immunoassays (5,857)

ELISA Substrates and Reagents (2,333)

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Invitrogen™ Alkaline Phosphatase (ALP) Activity Kit

These complete, ready-to-use kits include clear 96-well plate(s), other assay specific reagents, buffers, and a lot-specific technical data sheet.

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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.

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R&D Systems™ GDF-8/Myostatin Quantikine ELISA Kit

GDF-8/Myostatin Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

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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.

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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.

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 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 Testosterone Rapid ELISA Kit

ELISA

Pricing & Availability
Specifications

Shipping Condition	Wet or Dry Ice
Immunoassay Kit Format	Coated ELISA Kit
Target Species	Human
Conjugate	HRP
Interassay CV	<10%
Intraassay CV	<10%
Total Assay Time	1 hr 30 min
Assay Sensitivity	0.24 ng/mL
Storage Requirements	Refer to product documentation for component specific storage temperature.
Assay Range	0.63-40 ng/mL
Test Time	15 min
Regulatory Status	RUO
Target	Testosterone
Kit Contents	Pre-coated 96 well plate, Standard, HRP Conjugate, Standard & Sample Diluent, HRP Conjugate Diluent, Wash Buffer, TMB Substrate, Stop Solution, Plate Sealer,Standard,HRP Conjugate,Standard & Sample Diluent,HRP Conjugate Diluent,Wash Buffer,TMB Substrate,Stop Solution,Plate Sealer
Gene Alias	Androderm; C19H28O2; Mertestate; Sustanon; Testoderm; TestosteronAndroderm; C19H28O2; Mertestate; Sustanon; Testoderm; Testosteron;
Product Type	ELISA
For Use With (Equipment)	Absorbance Microplate Reader
Sample Type	Plasma,Saliva,Serum,Urine
Label or Dye	HRP

Invitrogen™ Mouse Amyloid beta 42 ELISA Kit

ELISA

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Invitrogen™ Histamine Competitive ELISA Kit

ELISA

Pricing & Availability
Specifications

For Use With (Equipment)	Colorimetric Microplate Reader
Interassay CV	<10%
Intraassay CV	<10
Assay Sensitivity	0.94 ng/mL
Assay Range	1.56 to 100 ng/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

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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 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™ Human IL-15 Uncoated ELISA Kit

ELISA

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Invitrogen™ Granzyme B Monoclonal Antibody (N4TL33), Brilliant Violet™ 421, eBioscience™

Mouse Monoclonal Antibody

Pricing & Availability
Specifications

Content And Storage	4°C, store in dark, DO NOT FREEZE!
Target Species	Human
Host Species	Mouse
Conjugate	Brilliant Violet 421
Applications	Flow Cytometry
Form	Liquid
Gene Accession No.	P10144
Isotype	IgG2a κ
Concentration	5 μL/Test
Antigen	Granzyme B
Gene Symbols	GZMB
Regulatory Status	RUO
Purification Method	Affinity chromatography
Gene Alias	AI553453; C11; Cathepsin G-like 1; CCP1; CCP-1/C11; CCPI; CGL1; CGL-1; CSPB; CSP-B; Ctla1; Ctla-1; CTSGL1; cytotoxic cell protease 1; cytotoxic serine protease B; Cytotoxic T lymphocyte associated serine esterase 1; cytotoxic T-lymphocyte proteinase 2; cytotoxic T-lymphocyte-associated serine esterase 1; fragmentin; fragmentin 2; fragmentin-2; GLP I; GLP III; GLP-1; granzyme 2; granzyme B; granzyme B (granzyme 2, cytotoxic T-lymphocyte-associated serine esterase 1); granzyme B(G,H); Granzyme-2; GranzymeB; granzyme-like protein 1; granzyme-like protein I; GRB; GZB; Gzmb; HLP; human lymphocyte protein; Human lymphocyte protein (Hlp); Lymphocyte protease; Natural killer cell protease 1; OTTHUMP00000028189; RNKP-1; SECT; T-cell serine protease 1-3E
Gene	GZMB
Product Type	Antibody
Gene ID (Entrez)	3002
Formulation	PBS with BSA and 0.09% sodium azide; pH 7.2
Classification	Monoclonal
Primary or Secondary	Primary
Clone	N4TL33

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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