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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 (84,755)
Singleplex and Multiplex Bead Based Immunoassays (5,725)
ELISA Substrates and Reagents (2,185)

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2,656 – 2,670 of 90,181 results
2,656
Promotions Available

Invitrogen™ Human Lymphotoxin beta R/TNF RIII/TNFRSF3 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol Ltbr
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 4.5 pg/mL
Storage Requirements 2°C to 8°C
Assay Range 4.5 to 1,000 pg/mL
Test Time 1 hrs 20 mins
Accession Number AI256028; CD18; D12S370; LT beta-R; Ltar; LT-beta receptor; LTbetaR; LT-BETA-R; Ltbr; lymphotoxin B receptor; lymphotoxin beta receptor; lymphotoxin beta receptor (TNFR superfamily, member 3); lymphotoxin-beta receptor; TNF receptor-related protein; Tnfbr; TNFCR; TNFR2-RP; TNFR3; TNF-RIII; TNF-R-III; TNFR-III; TNFRrp; TNFR-RP; TNFRSF3; Tumor necrosis factor C receptor; tumor necrosis factor receptor 2-related protein; Tumor necrosis factor receptor superfamily member 3; tumor necrosis factor receptor superfamily, member 3; tumor necrosis factor receptor type III
Regulatory Status RUO
Target LTBR
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) 4055
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
2,657

Novus Biologicals™ Equine Progesterone ELISA Kit (Colorimetric)
SDP

High sensitivity and specificity for detection of Equine horse progesterone.

Regulatory Status RUO
Target Progesterone
Specificity For detection of horse PROG
Kit Contents Instruction manual, Standard, Stop Solution, Wash Buffer (20 x concentrate), Substrate B, Substrate A, HRP-conjugate, Assay plate, Antibody, Adhesive Strip (For 96 wells)
Product Type ELISA Kit (Colorimetric)
Sample Type Plasma,Serum
Sample Volume 50 to 100 μL
Synonym Pregn 4 ene 3 20 dione
Assay Sensitivity 0.25ng/mL
Assay Range 0.25 to 100ng/mL
Storage Requirements Store the unopened product at 2° to 8°C. Protect from light. Do not use past expiration date.
Research Discipline Signal Transduction
For Use With (Application) ELISA
2,658

Novus Biologicals™ Rat Troponin I Type 3 (cardiac) ELISA Kit (Colorimetric)
SDP

Rat Troponin I Type 3 (cardiac) ELISA Kit (Colorimetric) measures Troponin I Type 3 (cardiac) in Serum, plasma, cell supernatant, and other biological fluids.

2,659

Novus Biologicals™ Rat PTGER2 ELISA Kit (Colorimetric)
SDP

Rat PTGER2 ELISA Kit (Colorimetric) measures PTGER2 in Serum, plasma, cell supernatant, and other biological fluids.

2,660
Promotions Available

Invitrogen™ Human MCP-2/CCL8 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Protein Family Chemokine & 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 1.5 pg/mL
Research Discipline Inflammation
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 CCL8 (MCP2)
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-10, IL-11, IL-12 p70, IL-12 p40, IL-13, IL-15, IL-309, IP-10, G-CSF, GM-CSF, IFN-gamma, Leptin, MCP-1, 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
For Use With (Equipment) Colorimetric Microplate Reader
Label or Dye HRP
Calibration Range 1.5 pg/mL to 200 pg/mL
Interassay CV <12%
Gene Symbol HC14,MCP-2,MCP2,SCYA10,SCYA8
Storage Requirements 2°C to 8°C
Assay Range 0.82 to 200 pg/mL
Accession Number P80075
Regulatory Status RUO
Product Type ELISA
Gene ID (Entrez) 6355
Sample Type Plasma,Serum,Supernatant
Synonym HC14, MCP-2, MCP2, SCYA10, SCYA8
2,661

Invitrogen™ Human TGFb1/LAP Uncoated ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Target Species Human
Conjugate HRP
Gene Symbol Tgfb1
Total Assay Time 24 hr 30 min
Sample Volume Plasma 10 μL, Serum 10 μL, Supernatant 10 μL
Assay Sensitivity 156.3 pg/mL
Storage Requirements 2-8°C
Assay Range 156.3-10000 pg/mL
For Use With (Application) ELISA
Test Time 1 hr 45 min
Accession Number P01137
Regulatory Status RUO
Target TGF beta-1
Kit Contents Capture Antibody: Pre-titrated, purified antibody, Detection Antibody: Pre-titrated, biotin-conjugated antibody, Standard: Recombinant protein for generating standard curve and calibrating samples, 10X Coating Buffer: Buffer for plating the Capture Antibody, 5X ELISA/ELISPOT Diluent: Buffer for blocking and diluting the Detection Antibody and Enzyme, Enzyme: Pre-titrated Avidin-HRP, Substrate: 1X TMB Solution, Certificate of Analysis: Lot-specific instructions for dilution of antibodies and standards, 96 Well Plate: High affinity 96-well plate (included with product Cat. Nos. ending in suffixes -22, -76, -86),Purified antibody,Detection Antibody: Pre-titrated,Biotin-conjugated antibody,Standard: Recombinant protein for generating standard curve and calibrating samples,10X Coating Buffer: Buffer for plating the Capture Antibody,5X ELISA/ELISPOT Diluent: Buffer for blocking and diluting the Detection Antibody and Enzyme,Enzyme: Pre-titrated Avidin-HRP,Substrate: 1X TMB Solution,Certificate of Analysis: Lot-specific instructions for dilution of antibodies and standards,96 Well Plate: High affinity 96-well plate (included with product Cat. Nos. ending in suffixes -22, -76, -86)
For Use With (Equipment) Absorbance Microplate Reader
Product Type ELISA
Gene ID (Entrez) 7040
Sample Type Plasma,Serum,Supernatant
Label or Dye Biotin
Synonym Latency Associated Peptide, Pro-TGF beta 1, LAP/TGF beta 1
2,662
Promotions Available

Invitrogen™ Mouse CD5L ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol Cd5l
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 8.5 pg/mL
Storage Requirements 2°C to 8°C
Assay Range 8.5 to 2,000 pg/mL
Test Time 1 hrs 20 mins
Accession Number 1/6; AAC-11; AI047839; AIM; AIM/Spalpha; API6; apoptosis inhibitor 6; apoptosis inhibitor expressed by macrophages; apoptosis inhibitor of macrophage; Apoptosis inhibitory 6; CD5 antigen-like; CD5 antigen-like (scavenger receptor cysteine rich family); CD5 molecule like; Cd5 molecule-like; Cd5l; CT2; CT-2; hAIM; IgM-associated peptide; mAIM; Pdp; Pdp 1/6; PRO229; Spalpha; SP-ALPHA; UNQ203/PRO229
Regulatory Status RUO
Target CD5L
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) 11801
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
2,663

R&D Systems™ Human TGF-beta 2 Quantikine ELISA Kit

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

Specificity Natural and Recombinant Human TGF-beta 2 and natural Porcine TGF-beta 2.
Target Species Human
Conjugate HRP
Product Type Solid Phase Sandwich ELISA
Gene ID (Entrez) 7042
Sample Type Cell Culture Supernatant,Plasma (EDTA, Citrate, Heparin),Serum
Sample Volume Cell Culture Supernates (125uL),Serum (125uL),EDTA Plasma (125uL),Heparin Plasma (125uL),Citrate Plasma (125uL)
Synonym BSC-1 cell growth inhibitor, Cetermin, Glioblastoma-derived T-cell suppressor factor, G-TSF, MGC116892, Polyergin, TGFB2, TGFbeta 2, TGF-beta2, TGF-beta-2, transforming growth factor beta-2, transforming growth factor, beta 2
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.
2,664

Invitrogen™ Human Osteopontin ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Target Species Human
Conjugate HRP
Interassay CV 6.1%
Intraassay CV 6.7
Gene Symbol BNSP,BSPI,ETA-1,OPN
Total Assay Time 4 hrs 30 mins
Sample Volume Plasma 20 μL, Serum 20 μL, Supernatant 20 μL
Assay Sensitivity 0.26 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 0.47 to 30 ng/mL
For Use With (Application) ELISA
Test Time 1 hrs 20 mins
Accession Number P10451
Regulatory Status RUO
Target Osteopontin
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) 6696
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
Synonym OPN, ETA-1, BSP-1, SPP1
2,665

Novus Biologicals™ Human TIMP-2 ELISA Kit (Colorimetric)
SDP

From the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

2,666

Invitrogen™ Rat HGF ELISA Kit

ELISA

ENCOMPASS_PREFERRED
2,667

Novus Biologicals™ Human IgA ELISA Kit (Colorimetric)
SDP

CCL27 Colorimetric ELISA Kit useful in study of Cytokine

2,668

Invitrogen™ Rat EGFR ELISA Kit

ELISA

ENCOMPASS_PREFERRED
2,669

Novus Biologicals Human ENPP-5 ELISA Kit (Colorimetric)
SDP

2,670

R&D Systems™ Mouse/Rat TREM-1 Quantikine ELISA Kit

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