Sulfonamides residues (SAs) ELISA Test Kit 1.Test Sensitivity: 1 ppb 2.Specifications : 96 wells 3.Brand: Green Spring Sulfonamides(SAs) ELISA Kit1. PrincipleThis test kit is based on the competitive enzyme immunoassay for the detection of Sulfonamides inthe chicken, pork, milk, honey and egg, etc. The coupling antigens are pre-coated on the microwellstripes. The Sulfonamides in the sample and ...