This test kit is based on the indirect competitive enzyme immunoassay for the detection of Trimethoprim in the sample. The coupling antigens are pre-coated on the micro-well stripes. The Trimethoprim in the sample and the coupling antigens pre-coated on the micro-well stripes compete for the anti-Trimethoprim 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 Trimethoprim in it. This value is compared to the standard curve and the Trimethoprim concentration is subsequently obtained.
2. Technical specifications
Sensitivity: 0.5 ppb
Incubation Temperature: 25℃
Detection limit:
Tissue 5ppb
Cross-reaction rate:
Trimethoprim 100%
Sulfamerazine <0.1%
Sulfaquinoxaline <0.1%
Sulfamethazine <0.1%
Sulfamonomethoxine <0.1%
Sulfamethoxazole <0.1%
Sulfathiazole <0.1%
Sulfamethoxypyridazine <0.1%
Sulfaguanidine <0.1%
Sulfadimethoxine <0.1%
Sulfadiazine <0.1%
Sulfameter <0.1%
Recovery rate:
Tissue 60%~120%
4. Materials required but not provided
1) Equipments: microplate reader, homogenizer, oscillator, centrifuge, balance (a sensibility reciprocal of 0.01 g), graduated pipette, incubator.
2) Micropipettors: single-channel 20~200 µL and 100~1000 µL, and multi-channel 30~300 µL;
3) Reagents: NaOH.
The following points must be dealt with before the pre-treatment of any kind of sample:
1) Only the disposable tips can be used for the experiments and the tips must be changed when used for absorbing different reagents;