SPS (Sulfite Polymyxin Sulfadiazine) Agar Back to Catalog Môi trường vi sinh Alphachem SPS (Sulfite Polymyxin Sulfadiazine) Agar SPS (Sulfite Polymyxin Sulfadiazine) Agar Selective medium for Clostridium perfringens and sulphite-reducing bacteria isolation and enumeration.