an instrument designed to conveniently count or assist counting colonies of microorganisms on a plate containing a gelled growth medium
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One variety uses a pencil-like rod with a metal tip, which is connected by an electrical connection to the gelled growth medium; when touched to a colony on the plate, the completion of the electrical circuit causes an increment of 1 unit on the readout of the colony counter.
Koloonialoendur, mis koosneb tumeda tagapõhjaga valgustatud alusest, varustatud 1,5 korda suurendava luubiga ja mehaanilise või elektroonilise digitaalloenduriga.
Ettenähtud aja möödudes loendatakse kolooniad Petri tassidelt, millel on kuni 300 kolooniat. Tasse uuritakse hajutatud valguses. Loendamise hõlbustamiseks võib kasutada sobiva suurusega luupi või koloonialoendajat.
Colony-counting equipment, consisting of an illuminated base with a dark background, fitted with a magnifying lens to be used at a magnification of ×1,5, and a mechanical or electronic digital counter.
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