This test kit is based on theindirect competitive enzyme immunoassay for the detection of Chloramphenicol in the sample.The coupling antigenis pre-coated on the micro-well stripes. The Chloramphenicol in the sample and the coupling antigen pre-coated on the micro-well stripes compete for the anti-Chloramphenicolantibody. 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 Chloramphenicol in it. This value is compared to the standard curve and the Chloramphenicol concentration is subsequently obtained.
2. Technical specifications
Sensitivity: 15 ppt
Incubation Temperature: 25℃
Detection limit:
Tissue(method 1)7.5ppt
Tissue(method 2) 15ppt
Egg 15ppt
Recovery rate
Tissue, egg95±25%
Cross-reaction rate:
Chloramphenicol100%
Thiamphenicol< 0.1%
Florfeniol< 0.1%
4. Materials required but not provided
1) Equipments:microplate reader,homogenizer, nitrogen-drying device,vortex, centrifuge, measuring pipets, andbalance( asensibility reciprocalof0.01 g), incubator.
2) Micropipettors: single-channel 20-200 µL, 100-1000 µL, andmulti-channel 30~300 μl.
3) Reagents: Ethyl acetate,N-hexane, NaOH, K2HPO4·3H2O, HCl.
5. Sample pre-treatment
Instructions
Thefollowing pointsmust be dealt with beforethe pre-treatment ofany kind ofsample:
1) Only thedisposable tips can be used for the experiments and the tips must be changed when used forabsorbingdifferent reagents;
2) Before the experiment, eachexperimentalequipment must be checked to beclean and should be re-cleaned ifnecessary,in order to avoid thecontamination whichinterfereswith the experimental results.