IgA Kit ELISA

N° du produit ABIN6973905

Détail du produit IgA Kit ELISA

Antigène: IgA

Reactivité: Boeuf (Vache)

Méthode de détection: Colorimetric

Type de méthode: Competition ELISA

Gamme de detection: 0.39 μg/mL - 25 μg/mL

Seuil minimal de détection: 0.39 μg/mL

Application: ELISA

Fonction: For the quantitative determination of bovine immunoglobulin A (IgA) concentrations in serum, plasma, cell culture supernates, tissue homogenates.

Type d'échantillon: Cell Culture Supernatant, Plasma, Serum, Tissue Homogenate

Analytical Method: Quantitative

Specificité: This assay has high sensitivity and excellent specificity for detection of bovine IgA. No significant cross-reactivity or interference between bovine IgA and analogues was observed. Note: Limited by current skills and knowledge, it is impossible for us to complete the cross-reactivity detection between bovine IgA and all the analogues, therefore, cross reaction may still exist.

Ingrédients:

• Assay plate
• Standard
• HRP-conjugate (100 x concentrate)
• Sample Diluent
• HRP-conjugate Diluent
• Wash Buffer (25 x concentrate)
• TMB Substrate
• Stop Solution
• Adhesive Strip

Stop Solution

Adhesive Strip

Information d'application

Indications d'application: Optimal working dilution should be determined by the investigator.

Volume d'échantillon: 50 μL

Durée du test: 1 - 4.5 h

Plaque: Pre-coated

Protocole:

1. Prepare reagents, samples and standards as instructed.
2. Set a Blank well without any solution.
3. Add 50 µL standard or sample to each well.
4. Add 50 µL HRP-conjugate (1x) to each well (Not to Blank well).
5. Incubate 1 hour at 37 °C
6. Aspirate and wash 5 times.
7. Add 90 μL of TMB Substrate to each well. Incubate for 20 minutes at 37 °C. Protect from light.
8. Add 50 µL Stop Solution to each well. Read at 450 nm within 5 minutes.

Préparation des réactifs:

1. HRP-conjugate (1x) - Centrifuge the vial before opening. HRP-conjugate requires a 100-fold dilution. A suggested 100-fold dilution is 10 μL of HRP-conjugate + 990 μL of HRP-conjugate Diluent.
2. Wash Buffer(1x)- If crystals have formed in the concentrate, warm up to room temperature and mix gently until the crystals have completely dissolved. Dilute 20 mL of Wash Buffer Concentrate (25 x) into deionized or distilled water to prepare 500 mL of Wash Buffer (1 x).
3. Standard Centrifuge the standard vial at 6000-10000rpm for 30s. Allow the standard to sit for a minimum of 15 minutes with gentle agitation prior to making dilutions. Pipette 150 μL of Sample Diluent into each tube (S0-S6). Use the stock solution to produce a 2-fold dilution series (below). Mix each tube thoroughly before the next transfer. The undiluted Standard serves as the high standard (25 μg/mL). Sample Diluent serves as the zero standard (0 μg/mL).

Note:

• Kindly use graduated containers to prepare the reagent. Please don't prepare the reagent directly in the Diluent vials provided in the kit.
• Bring all reagents to room temperature (18-25 °C) before use for 30 min.
• To minimize imprecision caused by pipetting, use small volumes and ensure that pipettors are calibrated. It is recommended to suck more than 10 μL for once pipetting.
• Distilled water is recommended to be used to make the preparation for reagents. Contaminated water or container for reagent preparation will influence the detection result.

Préparation de l'échantillon:

• It is recommended to use fresh samples without long storage, otherwise protein degradation and denaturationmay occur in these samples, leading to false results. Samples should therefore be stored for a short periodat 2 - 8 °C or aliquoted at -20 °C (≤1 month) or -80 °C (≤ 3 months). Repeated freeze-thawcycles should be avoided. Prior to assay, the frozen samples should be slowly thawed and centrifuged toremove precipitates.
• If the sample type is not specified in the instructions, a preliminary test is necessary to determinecompatibility with the kit.
• If a lysis buffer is used to prepare tissue homogenates or cell culture supernatant, there is a possibilityof causing a deviation due to the introduced chemical substance.The recommended dilution factor is for reference only.
• Please estimate the concentration of the samples before performing the test. If the values are not in therange of the standard curve, the optimal sample dilution for the particular experiment has to be determined.Samples should then be diluted with PBS (pH =7.0-7.2).

Note:

Recommend to dilute the serum or plasma samples with Sample Diluent(1:400) before test. The suggested 400-fold dilution can be achieved by adding 5 μL sample to 95 μL of Sample Diluent. Complete the 400-fold dilution by adding 15 μL of this solution to 285 μL of Sample Diluent. The recommended dilution factor is for reference only. The optimal dilution factor should be determined by users according to their particular experiments. 6

Précision du teste: Intra-assay Precision (Precision within an assay): CV%<8% Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<10% Three samples of known concentration were tested in twenty assays to assess.

Restrictions: For Research Use only

Stockage

Stock: 4 °C,-20 °C

Stockage commentaire: Unopened kit Store at 2 - 8°C. Do not use the kit beyond the expiration date. May be stored for up to 1 month at 2 - 8°C. Coated assay Try to keep it in a sealed aluminum foil bag, plate and avoid the damp. Standard May be stored for up to 1 month at 2 - 8° C. If don't make recent use, better keep it store at HRP-conjugate -20°C. HRP-conjugate Opened kit Diluent Sample Diluent Wash Buffer May be stored for up to 1 month at 2 - 8°C. TMB Substrate Stop Solution *Provided this is within the expiration date of the kit.

Date de péremption: 6 months

Références pour IgA Kit ELISA (ABIN6973905)

Zhou, Zhang, Deng, Liu, Lu: "Improvements of immune status, intestinal integrity and gain performance in the early-weaned calves parenterally supplemented with L-alanyl-L-glutamine dipeptide." dans: Veterinary immunology and immunopathology, Vol. 145, Issue 1-2, pp. 134-42, (2012) (PubMed).

Détail du antigène

Antigène: IgA

Autre désignation: Immunoglobulin A (IgA Produits)

Synonymes: MB-1 Kit ELISA, IG-alpha Kit ELISA, IGA Kit ELISA, IgA Kit ELISA, Igh-2 Kit ELISA, CD79a molecule Kit ELISA, immunoglobulin heavy constant alpha Kit ELISA, CD79A Kit ELISA, Igha Kit ELISA

Classe de substances: Antibody

Sujet: IgA