Product Description
REAGEN Tilmicosin ELISA Test Kit is a competitive enzyme immunoassay for the quantitative analysis of tilmicosin in bran mash, egg, honey, meat/liver/kidney, milk and urine.
The unique features of the kit are:
- Rapid (10-40 minutes), and organic reagent-free extraction method for various samples withhigh recovery (＞80%).
- High sensitivity (25ng/g or ppb) .
- High reproducibility.
- A quick ELISA assay (less than 2 hours regardless of number of samples).
Procedure Overview
The method is based on a competitive colorimetric ELISA assay. The drug of interest has been coated in the plate wells. During the analysis, sample is added along with the primary antibody specific for the target drug. If the target is present in the sample, it will compete for the antibody, thereby preventing the antibody from binding to the drug attached to the well. The secondary antibody, tagged with a peroxidase enzyme, targets the primary antibody that is complexed to the drug coated on the plate wells. The resulting color intensity, after addition of substrate, has an inverse relationship with the target concentration in the sample.
Kit Contents, Storage and Shelf Life
REAGEN Tilmicosin ELISA Test Kit has the capacity for 96 determinations or testing of 42 samples in duplicate (assuming 12 wells for standards). Return any unused microwells to the foil bag and reseal them with the desiccant provided in the original package. Most of the kit components should be stored at 2-8°C except for the Tilmicosin Standards, which should be stored at -20°C (4°C for 1 week). The shelf life is 12 months when the kit is properly stored.
| Kit Contents | Amount | Storage |
| Tilmicosin-coated Microtiter Plate | 1 x 96-well plate (8 x 12 strips) | 2-8°C |
| Tilmicosin Standards:
Negative control (white cap tube) 0.25 ng/mL (yellow cap tube) 1 ng/mL (orange cap tube) 2.5 ng/mL (pink cap tube) 5 ng/mL (purple cap tube) 10 ng/mL (blue cap tube) 1000 ng/mL (spiking, red cap tube) |
1.0mL 1.0mL 1.0mL 1.0mL 1.0mL 1.0mL 1.0mL |
2-8°C |
| Tilmicosin Antibody #1 | 12mL | 2-8°C * |
| 100X HRP-Conjugated Antibody #2 | 250mL | |
| Antibody #2 Diluent ** | 20mL | |
| 20X Wash Solution ** | 30mL | |
| TMB Substrate ** | 12mL | |
| Stop Buffer ** | 14mL | |
| Sample Extraction Buffer | 2x25mL | |
| Honey Balance Buffer (Optional) | 2x25mL | 2-8°C |
* If you are not planning to use the kit for over 1 month, store Tilmicosin Antibody #1 and 100X HRP-Conjugated Antibody #2 at -20°C or in a freezer.
Sensitivity (Detection Limit)
| Sample Type | Detection Limit (ng/g or ppb) |
| Bran Mash | 2.5(RapidMethod);0.625(Organic Extraction Method) |
| Egg | 2.5 (Rapid Method);0.625 (Organic Extraction Method) |
| Honey | 0.5 |
| Milk | 2.5 |
| Meat/Liver/Kidney | 2.5 |
| Urine | 5 |
Specificity (Cross-Reactivity)
| Analytes | Cross-Reactivity (%) |
| Tilmicosin | 100 |
| Spyramicin | 10 |
| Tetracyclines | < 0.01 |
| Gentamicin | < 0.01 |
| Ampicillin | < 0.01 |
| Florfenicol | < 0.01 |
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