The Kernel Trimethoprim ELISA Test Kit is a competitive enzyme immunoassay for the quantitative analysis of Trimethoprim (TMP) in fish, shrimp, feed, beef, chicken, pork, serum and urine. 

Trimethoprim as a veterinary medicine is used in the prophylaxis and treatment of urinary tract infections. The EEC No. 2377/90 regulation sets the MRL of Trimethoprim at 50 ppb in meat, liver and milk.