| 单词 | carrier gas |
| 释义 | > as lemmascarrier gas carrier gas n. a gas mixed with a volatile material so that it can be made to flow through an apparatus, e.g. as an inert vector in chromatographic analysis (cf. sense 14b(b)) or in carburization and other industrial processes. ΘΚΠ the world > matter > chemistry > chemical substances > named gases > [noun] > types permanent gas1800 carrier gas1887 flue-gas1898 1887 U.S. Patent 375,054 1/1 It is of course well known that in using carbureted air or gas for illumination the quantity of the carrier-gas required will vary according as it is more or less perfectly carbureted. 1940 Nature 27 July 129/1 The vapour of the iodides at low pressure..and diluted with a carrier gas..was passed through a tube. 1999 Materials World July 410/1 Liquid source materials such as these can be conveniently carried into the reaction chamber, by bubbling a carrier gas such as hydrogen through them to provide a controlled flow of material with a given concentration. 2013 M. G. Carlin & J. R. Dean Forensic Applic. Gas Chromatography (e-book ed.) iv The most commonly used carrier gases are nitrogen, helium and hydrogen. < as lemmas |
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