Speciate Haemophilus, porphyrin test incorporated into one unique, easy to handle ring.

Quick and easy to set up - one procédure for multiple tests Clear easy to read halos of growth appear around essential growth factors. Porphyrin synthesis is detected using an ultraviolet Less expensive than purchasing separate disks. No wastage and easier to re-order than individual tests. Microring* XV is a filter paper ring device designed to differentiate Haemophilus species on the basis of growth requirements for Haemin (X factor) and Nicotinamide Adenine Dinucleotide - NAD (V factor). Microring XV also incorporâtes a test for porphyrin synthesis which some microbiologists find is a more...