IgA ELISA Kit

Produktnummer ABIN956262

Das Affe IgA ELISA Kit (ABIN956262) ist ein Colorimetric ELISA Kit zur Detektion von Affe IgA.

Kurzübersicht für IgA ELISA Kit (ABIN956262)

Target: IgA

Reaktivität: Affe

Nachweismethode: Colorimetric

Methodentyp: Sandwich ELISA

Applikation: ELISA

Proben: Plasma, Serum

Produktdetails IgA ELISA Kit

Analytische Methode: Quantitative

Spezifität: Cross-reactivity with immunoglobulins from other species has not been investigated. IgA is present in monkey serum, milk and mucosal secretions at concentrations up to 2 mg/mL.

Produktmerkmale: The monkey IgA ELISA kit is designed for measurement of IgA in old world monkey serum or plasma. The assay uses goat anti-monkey IgA for solid phase (microtiter wells) immobilization and horseradish peroxidase (HRP) conjugated goat anti-monkey IgA antibodies for detection. Both capture and detection antibodies were cross-absorbed on monkey IgG and IgM agarose columns, thereby ensuring specificity for IgA.Test samples are diluted and incubated in the microtiter wells for 45 minutes alongside monkey IgA calibrators. The microtiter wells are subsequently washed and HRP conjugate is added and incubated for 45 minutes. IgA molecules are thus sandwiched between the immobilization and detection antibodies. The wells are then washed to remove unbound HRP-labeled antibodies and TMB Reagent is added and incubated for 20 minutes at room temperature. This results in the development of a blue color. Color development is stopped by the addition of Stop Solution, changing the color to yellow, and optical density is measured spectrophotometrically at 450 nm. The concentration of IgA is proportional to the optical density of the test sample and is derived from a calibration curve.

Bestandteile: Anti monkey IgA coated 96-well plate (12 strips of 8 wells)
Reference calibrator (lyophilized)
10X Immunoglobulin Diluent, 25 mL
HRP Conjugate Reagent, 11 mL
20X Wash Solution, 50 mL
TMB Reagent (One-step), 11 mL
Stop Solution (1N HCl), 11 mL.

Benötigtes Material: Precision pipettes and tips
Distilled or de-ionized water
Vortex mixer
Absorbent paper or paper towels
Graph paper (PC graphing software is optional)
Polypropylene or glass tubes
Plate reader with an optical density range of 0-4 at 450 nm.
Micro-Plate incubator/shaker mixing speed of ~150 rpm
Plate washer

Anwendungsinformationen

Plattentyp: Pre-coated

Aufbereitung der Proben:

General Note: IgA is typically present in monkey serum or plasma at concentrations of ~2 mg/mL. In order to obtain values within range of the calibration curve, we suggest that samples initially be diluted 50,000 fold using the following procedure for each sample to be tested:
1. Dispense 498 µL and 497.5 µL of 1x diluent into separate tubes.
2. Pipette and mix 2 µL of the serum/plasma sample into the tube containing 498 µL of diluent. This provides a 250 fold diluted sample.
3. Mix 2.5 µL of the 250 fold diluted sample with the 497.5 µL of diluent in the second tube. This provides a 50,000 fold dilution of the sample.
4. Repeat this procedure for each sample to be tested Body fluids other than serum or plasma will likely have lower IgA levels than those found in serum. Optimal dilutions of such samples should be determined empirically.

Testdurchführung:

1. Secure the desired number of coated wells in the holder.
   2. Dispense 100 µL of calibrators and diluted samples into the wells (we recommend that samples be tested in duplicate).
   3. Incubate on an orbital micro-plate shaker at 100-150 rpm at room temperature (18-25°C) for 45 minutes.
   4. Aspirate the contents of the microtiter wells and wash the wells 5 times with 1x wash solution using a plate washer (400 µL/well). The entire wash procedure should be performed as quickly as possible.
   5. Strike the wells sharply onto absorbent paper or paper towels to remove all residual wash buffer.
   6. Add 100 µL of enzyme conjugate reagent into each well.
   7. Incubate on an orbital micro-plate shaker at 100-150 rpm at room temperature (18-25°C) for 45 minutes.
   8. Wash as detailed in 4 to 5 above.
   9. Dispense 100 µL of TMB Reagent into each well.
   10. Gently mix on an orbital micro-plate shaker at 100-150 rpm at room temperature (18-25°C) for 20 minutes.
   11. Stop the reaction by adding 100 µL of Stop Solution to each well.
   12. Gently mix. It is important to make sure that all the blue color changes to yellow.
   13. Read the optical density at 450 nm with a microtiter plate reader within 5 minutes.

Ergebnisberechnung:

1. Calculate the average absorbance values (A450) for each set of reference calibrators and samples.
   2. Construct a calibration curve by plotting the mean absorbance obtained from each reference calibrator against its concentration in ng/mL on linear graph paper, with absorbance values on the vertical or Y-axis and concentrations on the horizontal or X-axis.
   3. Using the mean absorbance value for each sample, determine the corresponding concentration of IgA in ng/mL from the calibration curve.
   4. Multiply the derived concentrations by the dilution factor to determine the actual concentration of IgA in the sample.
   5. PC graphing software may be used for the above steps.
   6. If the OD450 values of the sample fall outside the calibration curve, samples should be diluted appropriately and re-tested.

Beschränkungen: Nur für Forschungszwecke einsetzbar

Handhabung

Informationen zur Lagerung: The test kit will remain stable until the expiration date provided that the components are stored as described above. The microtiter plate should be kept in a sealed bag with desiccant to minimize exposure to damp air.

Haltbarkeit: The expiry date is stated on the label.

Details zu IgA

Target: IgA

Substanzklasse: Antibody