Secretory Immunoglobulin A (sIgA) BioAssay ELISA Kit (Human)

£960.00 96 Tests

The Secretory Immunoglobulin A (sIgA) BioAssay ELISA Kit is a sandwich enzyme immunoassay for in vitro quantitative measurement of sIgA in human serum, plasma, saliva, stool, tissue homogenates, cell lysates, cell culture supernates and other biological fluids.

SKU: US027992 Categories: , ,

Additional information

Detection Range

31.2-2000pg/ml

Sensitivity

15.1pg/ml

Precision

Intra-Assay CV:
<10%

Inter-Assay CV:
<12%

Kit Components

*027992A: Microtiter Strips, 1×96 wells, Pre-coated, ready to use
*027992B: Standard, 2×1 vial
027992C: Standard Diluent, 1x20ml
*027992D: Detection Reagent A (green), 1x120ul
*027992E: Detection Reagent B (red), 1x120ul
027992F: Assay Diluent A, 1x12ml
0279932G: Assay Diluent B, 1x12ml
027992H: TMB Substrate, 1x9ml
*027992J: Positive Control, 1x1vial, 1240pg/ml (Lyophilized)
027992K: Stop Solution, 1x6ml
027992L: Wash Buffer, 30X, 1x20ml

Precaution

The Stop Solution (027992K) 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 *027992A, *027992B, *027992D, *027992E and *027992J at -20?C. After reconstitution of *027992J, 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 0207992J

Positive Control

Intended Use

The positive control is from a human 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.

Characteristics

The positive control vial contains human sIgA in human serum (lyophilized powder). Note: The human based material used in this product is screened for HIV, Hepatitis A, B, C, HTLV and Syphilis.

Expected Values

1240pg/ml

Usage

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 1 hour 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 10-20 minutes at 37?C.
8. Add 50ul Stop Solution. Read at 450nm immediately.

Shelf Life

6 Months