Thermo Fisher, SR0102E, Oxoid™ C-N Supplement

Thermo Scientific Oxoid Pseudomonas C-N Selective Supplement contains cetrimide and sodium nalidixate for preparing selective Pseudomonas agar. Each freeze-dried vial provides 100 mg cetrimide and 7.5 mg sodium nalidixate, sufficient to supplement 500 mL of compatible Pseudomonas Agar Base. The selective agents suppress competing organisms while permitting recovery of suitable Pseudomonas isolates, particularly Pseudomonas aeruginosa. Reconstitute the supplement aseptically and add it to the prepared agar base after cooling to the recommended temperature. Mix thoroughly, dispense plates and assess microbial recovery with relevant quality-control organisms. Results depend on both the basal medium and correct supplement preparation, so the vial cannot be treated as a complete growth medium. The formulation supports examination of clinical, food, water or environmental samples under appropriate laboratory protocols. Store the unopened lyophilized vials under their specified refrigerated conditions and protect them from moisture. Each package contains ten individually usable supplement vials.