method for determining the content of oxygen and nitrogen in metals

摘要

method for determining the content of oxygen and nitrogen in metals, which is determined by the elements of vacuum extraction, collection and filing u044du043au0441u0442u0440u0430u0433u0438u0440u043eu0432u0430u043du043du044bu0445 gas n a mass spectrometer for analysis, and the fact that, in order to lower limits of detection, improve the reliability and repeatability of the result s, the collection and distribution of gases are u0446u0435u043eu043bu0438u0442u043eu0432u044bu043c pump with u0430u0434u0441u043eu0440u0431u0435u043du0442u043eu043c NaX,the collection of gases are there at the temperature of liquid nitrogen, and the file is u0434u0435u0441u043eu0440u0431u0446u0438u0435u0439 at 550 - 650C.