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A laboratory rubber stopper or a rubber bung or a rubber cork is mainly used in chemical laboratories in combination with flasks and test tube and also for fermentation in winery. [ 1 ] [ 2 ] [ 3 ] Generally, in a laboratory , the sizes of rubber stoppers can be varied up to approximately 16 sizes and each of it is specific to certain type of ...
A cork borer, often used in a chemistry or biology laboratory, is a metal tool for cutting a hole in a cork or rubber stopper to insert glass tubing. [1] Cork borers usually come in a set of nested sizes along with a solid pin for pushing the removed cork (or rubber) out of the borer.
Small rubber bulbs attached to glass and plastic rods, used as dropper. The smaller rubber bulbs are well suited with small pipettes to draw smaller amount of reagents and can attach to both glass, as well as plastic rods. They are very commonly used for droppers as small sized rubber bulbs help control the amount of drops more precisely.
The tap-controlled outlet is designed to drain the liquid out of the funnel. On top of the funnel there is a standard taper joint which fits with a ground glass or Teflon stopper. [4] To use a separating funnel, the two phases and the mixture to be separated in solution are added through the top with the stopcock at the bottom closed.
Some flasks, especially volumetric flasks, come with a laboratory rubber stopper, bung, or cap for capping the opening at the top of the neck. Such stoppers can be made of glass or plastic. Glass stoppers typically have a matching tapered inner (or male) ground glass joint surface, but often only of stopper
These tubes are commonly sealed with a rubber stopper and often have a specific additive placed in the tube with the stopper color indicating the additive. For example, a blue-top tube is a 5 ml test tube containing sodium citrate as an anticoagulant, used to collect blood for coagulation and glucose-6-phosphate dehydrogenase testing. [5]
A reagent bottle is a type of laboratory glassware. The term " reagent " refers to a substance that is part of a chemical reaction (or an ingredient of which), and "media" is the plural form of " medium " which refers to the liquid or gas which a reaction happens within, or is a processing chemical tool such as (for example) a flux .
used for visualising minute structures, including microbes: Bunsen burner or spirit lamps or candles: source of fire / heat Ultracentrifuge: used to separate particles dispersed in a liquid according to their molecular mass: Electrophoresis apparatus: used to detect and classify serum proteins or proteins from any other source; also used for ...