Interleukin 4 (IL4) BioAssay ELISA Kit (Chicken)

£1,007.00 96 Tests

Interleukin 4 (IL4) BioAssay ELISA Kit is a sandwich enzyme immunoassay for in vitro quantitative measurement of IL4 in gallus serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

Additional information

Detection Range





Intra-Assay: CV<10%

Inter-Assay: CV<12%

Kit Components

*026233A: Microtiter Strips, 1×48 wells or 1×96 wells, Pre-coated, ready to use
*026233B: Standard, 2×1 vial
026233C: Standard Diluent, 1x10ml or 1x20ml
*026233D: Detection Reagent A (green), 1x60ul or 1x120ul
*026233E: Detection Reagent B (red), 1x60ul or 1x120ul
026233F: Assay Diluent A, 1x6ml or 1x12ml
026233G: Assay Diluent B, 1x6ml or 1x12ml
026233H: TMB Substrate, 1×4.5ml or 1x9ml
026233J: Positive Control, 415.4pg/ml, 1x1vial
026233K: Stop Solution, 1x3ml or 1x6ml
026233L: Wash Buffer, 30X, 1x10ml or 1x20ml


The Stop Solution (026233K) included for use in this kit is an acid solution. Wear eye, hand, face, and clothing protection when using this material.

Storage and Stability

Store *026233A, *026233B, *026233D, *026233E and *026233J at -20?C. After reconstitution of *026233J, store at 4?C and use within 5 days. Store all the other components at 4?C. Unused kit is stable for 6 months after receipt. Once kit components are opened, it is highly recommended to use remaining reagents within 1 month provided this is within the expiration date of the kit. For maximum recovery of product, centrifuge the original vials after thawing and prior to removing the cap.

Notes on 026233J

Positive Control

Intended Use

The positive control is from a gallus serum sample known to contain the target protein. It will provide a positive result in the ELISA assay, which indicates that the kit is optimized and working properly.


The positive control vial contains gallus IL4 in gallus serum (lyophilized powder). Note: The gallus based material used in this product is from healthy gallus of SPF standard (specific pathogen-free animals).

Expected Values



Dissolve with 150ul standard diluent and let stand for 10 minutes. If powder is partly insoluble, shake gently until fully dissolved. Mix gently before use. In the experiment, add 100ul to an appropriate well of the plate and test its concentration along with standards and your specimens. Note: Upon receipt store Positive Control vial at -20?C. After reconstitution, store Positive Control vial at 4?C and use within 5 days.

Assay Procedure Summary

1. Prepare all reagents, samples and standards.
2. Add 100ul standard or sample to each well. Incubate 2 hours at 37?C.
3. Aspirate and add 100ul prepared Detection Reagent A. Incubate 1 hour at 37?C.
4. Aspirate and wash 3 times.
5. Add 100ul prepared Detection Reagent B. Incubate 30 minutes at 37?C.
6. Aspirate and wash 5 times.
7. Add 90ul Substrate Solution. Incubate 15-25 minutes at 37?C.
8. Add 50ul Stop Solution. Read at 450nm immediately.

Source Antigen


Shelf Life

6 Months