Psuedomonas C-N Selective Supplement


Cat. No. 1.07624.0001
(Pack contains 16 vials)
Product available March 2005


Additive for the preparation of Pseudomonas C-N Selective Agar for the detection and enumeration of Pseudomonas aeruginosa in water by the membrane filter technique.


Mode of Action Typical Composition (g/liter)
Preparation Additives


Mode of Action
The selective supplement is a mixture of 2 different inhibitors in lyophilized form.

Cetrimide and Nalidixic acid inhibit the Gram-positive and Gram-negative accompanying flora.


Typical Composition (g/liter)
Cetrimidie 100 mg; Nalidixic acid 7.5 mg


Preparation
Aseptically add 2 ml of a 50/50 mixture of purified water and ethanol to the contents of one vial and mix gently to avoid foaming.

Aseptically add the contents of one vial to 500 ml of Pseudomonas Selective Agar Base (with 5 ml glycerol) cooled to 45-50°C. Mix to suspend evenly.


Additives



EMD Cat. No. Product Pack Size
1.07620.0500 Pseudomonas Selective Agar Base 500 g
     




© 2002 Merck KGaA, Darmstadt, Germany