An ampoule (also ampul, ampule, or ampulla) is a small sealed vial which is used to contain and preserve a sample, usually a solid or liquid. Ampoules are commonly made of glass, although plastic ampoules do exist.
Modern ampoules are most commonly used to contain pharmaceuticals and chemicals that must be protected from air and contaminants. They are hermetically sealed by melting the thin top with an open flame, and usually opened by snapping off the neck. If properly done, this last operation creates a clean break without any extra glass shards or slivers; but the liquid or solution may be filtered for greater assurance. The space above the chemical may be filled with an inert gas before sealing. The walls of glass ampoules are usually sufficiently strong to be brought into a glovebox without any difficulty.

Glass ampoules are more expensive than bottles and other simple containers, but there are many situations where their superior imperviousness to gases and liquids and all-glass interior surface are worth the extra cost. Examples of chemicals sold in ampoules are injectable pharmaceuticals, air-sensitive reagents like tetrakis(triphenylphosphine)palladium(0), hygroscopic materials like deuterated solvents and trifluoromethanesulfonic acid, and analytical standards.

Read more about Ampoule:  Historic Ampoules, Production, Other Uses, Ampoule Codes

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The Eye Of The Giant - Plot
... go-between to demand the return of the ampoules ... relatively cold planet, losing one of the ampoules in the process ... him while he repaired his ship, but first he went searching for the missing ampoule and fell into this pit, damaging the heat exchanger of his survival suit ...
Glow Stick - History
... This patent recommended a single glass ampoule that is suspended in a second substance, that when broken and mixed together, provide the chemiluminescent light ... This design, with its single glass ampoule inside a plastic tube filled with a second substance that when bent breaks the glass and then is shaken to mix the substances, most closely resembles the typical glow stick ... inside the plastic tube that when shaken would break the glass ampoule ...
Solid-state Chemistry - Synthetic Methods - Oven Techniques - Melt Methods
... are involved the reactants are often put in an ampoule that is evacuated -often while keeping the reactant mixture cold e.g ... by keeping the bottom of the ampoule in liquid nitrogen- and then sealed ... The sealed ampoule is then put in an oven and given a certain heat treatment ...
Ampoule Codes
... Ampoules often have colored rings of paint or enamel around their necks. ...