Offering ractopamine elisa test kit :
- Principle this test kit is based on the competitive enzyme immunoassay for the detection of ractopamine in the pork. The coupling antigen is pre-coated on the micro-well stripes.
- The ractopamine in the testing sample competes with the coupling antigens pre-coated on the micro-well stripes for the antibodies against ractopamine.
- After the addition of the enzyme conjugate, the tmb substrate is added for coloration. The optical density (od) value of the testing sample has a negative correlation with the content of ractopamine in it.
- This value is compared to the standard curve and the content of the corresponding ractopamine is subsequently obtained.
- Specifications sensitivity : 0.5 ppb detection limit muscle 1ppb liver 2ppb urine 1ppb admixture 25ppb contrated material, premix material 75ppb recovery rate urine 85?10% muscle and liver 80?10% cross-reactions ractopamine 100% dobutamine 10% clenbuterol <0.1% salbutamol <0.1%.