Tetracyclines (TCs) ELISA Kit

Quantitive

3-5 working days

Intra-assay Precision (Precision within an assay)
Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.
Inter-assay Precision (Precision between assays)
Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.
CV (%) = SD/meanX100
Intra-Assay: CV<8%
Inter-Assay: CV<12%

Poultry tissue, aquatic tissue, milk, etc.

The stability of ELISA kit is determined by the loss rate of activity. The loss rate of this kit is less than 5% within the expiration date under appropriate storage condition.
The loss rate was determined by accelerated thermal degradation test. Keep the kit at 37C for 4 and 7 days, and compare O.D.values of the kit kept at 37C with that of at recommended temperature. (referring from China Biological Products Standard, which was calculated by the Arrhenius equation. For ELISA kit, 4 days storage at 37C can be considered as 6 months at 2 - 8C, which means 7 days at 37C equaling 12 months at 2 - 8C).

This assay is based on the competitive enzyme immunoassay for the detection of Tetracyclines in the sample. The coupling antigens are pre-coated on the micro-well stripes. The Tetracyclines in the sample and the coupling antigens pre-coated on the micro-well stripes compete for the anti-Tetracyclines antibody. After the addition of the enzyme conjugate, the TMB substrate is added for coloration. The optical density (OD) value of the sample has a negative correlation with the Tetracyclines in it. This value is compared to the standard curve and the Tetracyclines concentration is subsequently obtained.