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AssigneeSumitomo Chemical Company, Limited
InventorTadamasa Itoh
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An analytical method for the determination of total nitrogen contents in samples, which comprises passing an inert gas stream containing substantially no nitrogen through a first reaction tube which is packed with a decomposition catalyst and oxidizing agent and maintained at a temperature of 700.degree. to 1100.degree. C., a condenser for condensing unnecessary components in the gaseous products from the first reaction tube, a second reaction tube which is packed with an oxidizing agent and a reducing agent and is maintained at a temperature of 400.degree. to 800.degree. C., a moisture-absorbing tube and a carbon dioxide gas-absorbing tube in this order, introducing a liquid sample to be analyzed into the first reaction tube and sending nitrogen gas coming out of the carbon dioxide gas-absorbing tube to a nitrogen gas analyzer to determine the nitrogen gas, and an apparatus for carrying out such a method.
An analytical method for the determination of total nitrogen contents in samples, which comprises passing an inert gas stream containing substantially no nitrogen through a first reaction tube which is packed with a decomposition catalyst and an oxidizing agent and is maintained at a temperature of 700.degree. to 1100.degree. C., a condenser, a second reaction tube which is packed with an oxidizing agent and a reducing agent and is maintained at a temperature of 400.degree. to 800.degree. C., a moisture-absorbing tube and a carbon dioxide gas-absorbing tube in this order, introducing a sample to be analyzed into the first reaction tube and sending nitrogen gas coming out of the carbon dioxide gas-absorbing tube to a nitrogen gas analyzer to determine the nitrogen gas.
An apparatus for analyzing the total nitrogen content in samples comprising:
Dependencies are inferred from the claim text.