The contents of residue chloramphenicol in 3 sawples of fresh cultured prawn and 2 sawples of exported culturedprawn from Zhanjiang aquatic products market were determined by RIA.

• 采用放射免疫分析法测定了湛江市水产市场3份新鲜养殖对虾及2份出口养殖对虾氯霉素残留量。