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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 (61,750)
ELISA Substrates and Reagents (1,915)
Singleplex and Multiplex Bead Based Immunoassays (1,911)

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526 – 540 of 62,951 results
526

R&D Systems™ Human COMP Quantikine ELISA Kit

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

527

R&D Systems™ Human CX3CL1/Fractalkine Quantikine ELISA Kit
GSA_VA

Human CX3CL1/Fractalkine Quantikine ELISA Kit from the most referenced ELISA manufacturer. Highly validated for accurate quantitation and long-term reproducibility.

529

Invitrogen™ Bovine aFGF/FGF-1 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
For Use With (Equipment) Colorimetric Microplate Reader
Gene ID (Entrez) 281160
Interassay CV <12%
Intraassay CV <10
Assay Sensitivity 0.2 ng/mL
Assay Range 0.205 to 50 ng/mL
530

Invitrogen™ Bovine Decorin ELISA Kit

ELISA

ENCOMPASS_PREFERRED
For Use With (Equipment) Colorimetric Microplate Reader
Gene ID (Entrez) 280760
Interassay CV <12%
Intraassay CV <10
Assay Sensitivity 5 pg/mL
Assay Range 5 to 1,200 pg/mL
531

Invitrogen™ Feline PDGF-BB ELISA Kit

ELISA

ENCOMPASS_PREFERRED
532

Invitrogen™ Human Coagulation Factor XIV/Protein C ELISA Kit

ELISA

ENCOMPASS_PREFERRED
533

Invitrogen™ Human Contactin-2/TAG1 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
For Use With (Equipment) Colorimetric Microplate Reader
Gene ID (Entrez) 6900
Interassay CV <12%
Intraassay CV <10
Assay Sensitivity 0.12 ng/mL
Assay Range 0.102 to 25 ng/mL
534

Invitrogen™ Human Cystatin D ELISA Kit

ELISA

ENCOMPASS_PREFERRED
535
Promotions Available

Invitrogen™ Human Cystatin SN ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol CST1
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 0.2 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 0.2 to 50 ng/mL
Test Time 1 hrs 20 mins
Accession Number CST1; Cystain-SA-I; cystatin 1; cystatin SA-I; cystatin SN; cystatin-1; Cystatin-SN; cysteine proteinase inhibitor, type 2 family; Salivary cystatin-SA-1
Regulatory Status RUO
Target CST1
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) 1469
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
536
Promotions Available

Invitrogen™ Human CrkL ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol CRKL
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 0.21 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 0.21 to 50 ng/mL
Test Time 1 hrs 20 mins
Accession Number 1110025F07Rik; AA589403; AI325100; CRK like proto-oncogene, adaptor protein; CRKL; crkl {ECO:0000312; crk-like protein; crk-like protein {ECO:0000250; Crkol; EMBL:AAH85865.1, ECO:0000312; OTTHUMP00000198539; RGD:1308531}; UniProtKB:P46109}; v-crk avian sarcoma virus CT10 oncogene homolog-like; v-crk sarcoma virus CT10 oncogene homolog (avian)-like; v-crk sarcoma virus CT10 oncogene homolog-like
Regulatory Status RUO
Target CrkL
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) 1399
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
537

Invitrogen™ Human eNOS/NOS3 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol NOS3
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 0.4 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 0.4 to 100 ng/mL
Test Time 1 hrs 20 mins
Accession Number 2310065A03Rik; cNOS; constitutive NOS; Ecnos; EC-NOS; endothelial nitric oxide synthase; endothelial nitric oxide synthase 3; endothelial nitric oxide synthase NOS3; endothelial NOS; eNOS; e-NOS; nitric oxide synthase; nitric oxide synthase 3; nitric oxide synthase 3 (endothelial cell); nitric oxide synthase 3 transcript variant eNOS-delta20; nitric oxide synthase 3 transcript variant eNOS-delta20-21; nitric oxide synthase 3 transcript variant eNOS-delta21; nitric oxide synthase 3, endothelial cell; nitric oxide synthase, endothelial; NOS; NOS type III; Nos3; Nos-3; NOSIII; OTTHUMP00000213183
Regulatory Status RUO
Target eNOS
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) 4846
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
538
Promotions Available

Invitrogen™ Human FCRL3/FcRH3 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol FCRL3
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 0.05 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 0.05 to 10 ng/mL
Test Time 1 hrs 20 mins
Accession Number CD307c; Fc receptor homolog 3; Fc receptor like 3; Fc receptor-like 3; Fc receptor-like protein 3; FCRH3; FCRL3; fcR-like protein 3; hIFGP3; IFGP family protein 3; IFGP3; Immune receptor translocation-associated protein 3; immunoglobulin superfamily receptor translocation associated protein 3; IRTA3; SH2 domain-containing phosphatase anchor protein 2; SPAP2
Regulatory Status RUO
Target FCRL3
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) 115352
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
539
Promotions Available

Invitrogen™ Human FCGR3A/CD16A ELISA Kit

ELISA

ENCOMPASS_PREFERRED
Conjugate HRP
Interassay CV <12%
Intraassay CV <10
Gene Symbol FCGR3A, FCGR3B
Total Assay Time 4 hrs 45 mins
Sample Volume Plasma 50 μL, Serum 50 μL, Supernatant 50 μL
Assay Sensitivity 1.35 ng/mL
Storage Requirements 2°C to 8°C
Assay Range 1.311 to 320 ng/mL
Test Time 1 hrs 20 mins
Accession Number 4833442P21Rik; CD16; CD16-2; CD16A; CD16a antigen; CD16B; CD32; CD32 receptor 2; CDw32; cytolytic trigger molecule G7; Fc fragment of IgG intermediate affinity IV receptor; Fc fragment of IgG low affinity IIIa receptor; Fc fragment of IgG receptor IIIa; Fc fragment of IgG receptor IIIb; Fc fragment of IgG, low affinity III, receptor for (CD16); Fc fragment of IgG, low affinity IIIa, receptor; Fc fragment of IgG, low affinity IIIa, receptor (CD16a); Fc fragment of IgG, low affinity IIIa, receptor for (CD16); Fc fragment of IgG, low affinity IIIa, receptor for (CD16); Fc fragment of IgG, low affinity III, receptor for (CD16); Fc fragment of IgG, low affinity IIIb, receptor (CD16b); Fc gamma receptor III; Fc gamma receptor IIIa; Fc gamma receptor III-A; Fc gamma receptor IIIb; Fc gamma RIIIa; Fc gammaRIV; Fc receptor, IgG, low affinity III; Fc receptor, IgG, low affinity IV; Fc receptor-like 3; Fcg receptor III; FCG2; FCG3; Fc-gamma receptor III-2 (CD 16); Fc-gamma receptor IIIb (CD 16); Fc-gamma receptor IIIb (CD16); Fc-gamma RII-b; Fc-gamma RII-c; fc-gamma RIII; Fc-gamma RIIIa; Fc-gamma RIII-alpha; fc-gamma RIIIb; fc-gamma RIII-beta; Fc-gamma-RIIb; Fc-gamma-RIIc; FcgammaRIII; FcgammaRIII a0.1; FcgammaRIII a0.2; FcgammaRIII a0.3; FcgammaRIIIA; FcgammaRIV; FCGR2; FCGR2A; FCGR2B; FCGR2C; FCGR3; Fcgr3a; FCGR3B; Fcgr4; FCGRIII; FcgRIV; FCR-10; FcRII-b; FcRII-c; FcRIII; FCRIIIA; FCRIIIb; Fcrl3; IGFR3; IgG Fc gamma receptor III; IgG Fc receptor III; igG Fc receptor III-1; IgG Fc receptor III-2; IMD20; immunoglobulin G Fc receptor III; Low affinity immunoglobulin gamma Fc region receptor III; low affinity immunoglobulin gamma Fc region receptor III-A; Low affinity immunoglobulin gamma Fc region receptor III-B; Low affinity immunoglobulin gamma Fc region receptor IV; neutrophil-specific antigen NA; RP11-5K23.1; transmembrane receptor FcgammaRIII-X
Regulatory Status RUO
Target CD16
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) 2214, 2215
Sample Type Plasma,Serum,Supernatant
Label or Dye HRP
540

Invitrogen™ Human Ficolin-2 ELISA Kit

ELISA

ENCOMPASS_PREFERRED
For Use With (Equipment) Colorimetric Microplate Reader
Gene ID (Entrez) 2220
Interassay CV <12%
Intraassay CV <10
Assay Sensitivity 0.12 ng/mL
Assay Range 0.123 to 30 ng/mL