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Nitrogen Ampoule Source: Bought, eBay Purity: 99.95% This ampoule of Nitrogen was bought as a sample. It came from a bottle of the listed purity, and was bottled by filling a glove box with the nitrogen gas and sealing it. Doesn't get much simpler than that - however, I'm not 100% sure that the nitrogen hasn't begun to diffuse out of the rubber seal. |