Cetrimide (Pseudosel) Agar is used for the selective isolation and identification of Pseudomonas aeruginosa.
Meets United States Pharmacopeia (USP), European Pharmacopoeia (EP) and Japanese Pharmacopoeia (JP) performance specifications, where applicable.

Principles of the Procedure
Gelatin peptone supplies the nutrients necessary to support growth. The production of pyocyanin is stimulated by the magnesium chloride and potassium sulfate in the medium.
Cetrimide is a quaternary ammonium, cationic detergent compound, which is inhibitory to a wide variety of bacterial species including Pseudomonas species other than Pseudomonas aeruginosa. Agar is a solidifying agent. Cetrimide Agar Base is supplemented with 1% glycerol as a source of carbon.

Formula
Difco™ Cetrimide Agar Base
Approximate Formula* Per Liter
Pancreatic Digest of Gelatin : 20.0 g
Magnesium Chloride : 1.4 g
Potassium Sulfate : 10.0 g
Cetrimide (Tetradecyltrimethylammonium Bromide : 0.3 g
Agar : 13.6 g
*Adjusted and/or supplemented as required to meet performance criteria.

Identity Specifications
Difco™ Cetrimide Agar Base
Dehydrated Appearance: Beige, free-flowing, homogeneous.
Solution: 4.53% solution with 1% glycerol, soluble in purified water upon boiling. Solution is light amber, opalescent, with a precipitate.
Prepared Appearance: Light amber, opalescent, with precipitate.
Reaction of 4.53%
Solution with 1%
glycerol at +25°C: pH 7.2 ± 0.2 

Poids	0,81 Kg   (810 g)
Volume	0,005 m³   (5000 cm³)
Largeur	0,1 m   (10 cm)
Longueur	0,2 m   (20 cm)
Hauteur	0,25 m   (25 cm)

Les dimensions, le poids et le volume sont bruts (emballage inclus)