TNF alpha ELISA Kit

Produktnummer ABIN368636

Produktdetails TNF alpha ELISA Kit

Target: TNF alpha (Tumor Necrosis Factor alpha (TNF alpha))

Reaktivität: Human

Nachweismethode: Colorimetric

Methodentyp: Sandwich ELISA

Detektionsbereich: 7.8-500 pg/mL

Untere Nachweisgrenze: 7.8 pg/mL

Applikation: ELISA

Verwendungszweck: This immunoassay kit allows for the in vitro quantitative determination of Human TNF-? l concentrations in cell culture supernates, serum, plasma and other biological fluids. l

Proben: Serum, Plasma, Cell Culture Supernatant, Tissue Homogenate, Cell Lysate

Analytische Methode: Quantitative

Spezifität: This assay recognizes recombinant and natural Human TNF-?.

Kreuzreaktivität (Details): Limited by current skills and knowledge, it is impossible for us to complete the cross-reactivity detection between the target antigen and all analogues for other species. Therefore, cross reaction may still exist.

Sensitivität: 1.95 pg/mL

Bestandteile:

• Assay plate (12 × 8 coated Microwells)
• Standard (freeze dried)
• Biotin-antibody (100 × concentrate)
• HRP-avidin (100 × concentrate)
• Biotin-antibody Diluent
• HRP-avidin Diluent
• Sample Diluent
• Wash Buffer (25 × concentrate)
• TMB Substrate
• Stop Solution
• Adhesive Strip (for 96 wells)
• Instruction manual

Anwendungsinformationen

Applikationshinweise:

• The supplier is only responsible for the kit itself, but not for the samples consumed during the assay. The user should calculate the possible amount of the samples used in the whole test. Please reserve sufficient samples in advance.
• Samples to be used within 5 days may be stored at 2-8°C, otherwise samples must be stored at -20°C (≤ 1 month) or -80°C (≤ 2 months) to avoid loss of bioactivity and contamination.
• Grossly hemolyzed samples are not suitable for use in this assay.
• If the samples are not indicated in the manual, a preliminary experiment to determine the validity of the kit is necessary.
• Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their particular experiments.
• Tissue or cell extraction samples prepared by chemical lysis buffer may cause unexpected ELISA results due to the impacts of certain chemicals.
• Owing to the possibility of mismatching between antigens from another resource and antibodies used in this supplier's kits (e.g., antibody targets conformational epitope rather than linear epitope), some native or recombinant proteins from other manufacturers may not be recognized by this supplier's products.
• Influenced by factors including cell viability, cell number and cell sampling time, samples from cell culture supernatant may not be recognized by the kit.
• Fresh samples without long time storage are recommended for the test. Otherwise, protein degradation and denaturalization may occur in those samples and finally lead to wrong results.

Kommentare:

Detection wavelength: 450 nm

Information on standard material:
Depending on the antigen to be detected, standards can be either native or recombinant protein. The recombinant proteins are being expressed in CHO cells in most cases. Please inquire for more information. The formulation of auxiliary material in the standard is considered proprietary information, however it does not contain any poisonous substance. Proclin 300 (1:3000) is used as preservative.

Information on reagents:
In most cases the stop solution provided is 1 N H2SO4. The formulation of wash solution is proprietary information. None of the components contain (sodium) azide, thimerosal, 2-mercaptoethanol (2-ME) or any other poisonous materials. For the sandwich method kits, the sample diluent, antibody diluent, enzyme diluent and standard all contain BSA.

Information on antibodies:
The antibodies provided in different kits vary in regards to clonality and host. Some antibodies are affinity purified, some are Protein A

Testdauer: 1 - 4.5 h

Plattentyp: Pre-coated

Protokoll: The microtiter plate provided in this kit has been pre-coated with an antibody specific to TNF-αStandards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated polyclonal antibody preparation specific for TNF-αand Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Then a TMB (3,3'5, 5' tetramethyl-benzidine) substrate solution is added to each well. Only those wells that contain TNF-α, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of TNF-αin the samples is then determined by comparing the O.D. of the samples to the standard curve.

Testpräzision: Intra-assay precision (precision within an assay): Three samples of known concentration were tested twenty times on one plate to assess precision.
Inter-assay precision (precision between assays): Three samples of known concentration were tested in twenty assays to assess precision.

• Intra-assay: CV% less than 8%
• Inter-assay: CV% less than 10%

Beschränkungen: Nur für Forschungszwecke einsetzbar

Handhabung

Vorsichtsmaßnahmen: The Stop Solution provided with this kit is an acid solution. Wear eye, hand, face and clothing protection when using this material.

Handhabung:

• The kit should not be used beyond the expiration date on the kit label.
• Do not mix or substitute reagents with those from other lots or sources.
• If samples generate values higher than the highest standard, dilute the samples with Sample Diluent and repeat the assay.
• Any variation in Sample Diluent, operator, pipetting technique, washing technique, incubation time/temperature and kit age can cause variation in binding.
• This assay is designed to eliminate interference by soluble receptors, binding proteins and other factors present in biological samples. Until all factors have been tested in the Immunoassay, the possibility of interference cannot be excluded.

Lagerung: 4 °C/-20 °C

Informationen zur Lagerung: For unopened kit: All the reagents should be kept according to the labels on vials.

Haltbarkeit: 6 months

Referenzen für TNF alpha ELISA Kit (ABIN368636)

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Details zu TNF alpha

Target: TNF alpha (Tumor Necrosis Factor alpha (TNF alpha))

Andere Bezeichnung: TNF-alpha (TNF alpha Produkte)

Synonyme: DIF ELISA Kit, TNF-alpha ELISA Kit, TNFA ELISA Kit, TNFSF2 ELISA Kit, RATTNF ELISA Kit, Tnfa ELISA Kit, tnf ELISA Kit, TNF-a ELISA Kit, TNFalpha ELISA Kit, Tnfsf1a ELISA Kit, TNFa ELISA Kit, cTNF ELISA Kit, Tnf-alpha ELISA Kit, tnfa-like ELISA Kit, TNF-ALPHA ELISA Kit, dif ELISA Kit, tnfa ELISA Kit, xtnf ELISA Kit, tnfsf2 ELISA Kit, tnf-alpha ELISA Kit, Cachectin ELISA Kit, tumor necrosis factor ELISA Kit, tumor necrosis factor b (TNF superfamily, member 2) ELISA Kit, tumor necrosis factor alpha ELISA Kit, tumor necrosis factor a (TNF superfamily, member 2) ELISA Kit, TNF ELISA Kit, Tnf ELISA Kit, tnf ELISA Kit, tnfb ELISA Kit, tnf-alpha ELISA Kit, LOC103694380 ELISA Kit, tnfa ELISA Kit

Hintergrund: Synonyms: DADB-70P7.1, DIF, TNF-alpha, TNFA, TNFSF2, APC1 protein|TNF superfamily, member 2|TNF, macrophage-derived|TNF, monocyte-derived|cachectin|tumor necrosis factor alpha

UniProt: P01375

Pathways: NF-kappaB Signalweg, Apoptose, Caspase Kaskade in der Apoptose, TLR Signalweg, Cellular Response to Molecule of Bacterial Origin, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response, Positive Regulation of Endopeptidase Activity, Hepatitis C, Protein targeting to Nucleus, Inflammasome