摘要: An improved analytical method has been developed using inert-gas fusion for determining the nitrogen and the oxygen contents of uranium metal. The analytical method is applicable to concentrations of nitrogen and oxygen ranging fr... 展开 An improved analytical method has been developed using inert-gas fusion for determining the nitrogen and the oxygen contents of uranium metal. The analytical method is applicable to concentrations of nitrogen and oxygen ranging from 1 microgram per gram to 1000 micrograms per gram for each gas. In uranium metal, the limit of error for a single determination at the 95%-confidence level, at the 12-micrograms-per-gram-nitrogen level, is +-3 micrograms per gram nitrogen and, at the 20-micrograms-per-gram-oxygen level, is +-3 micrograms per gram oxygen. Nitrogen and oxygen concentrations are determined by using a nitrogen-oxygen determinator. (ERA citation 05:012217) 收起