摘要:
A method and device are provided for dynamic flash combustion reaction connected with gas chromatography for the elemental analysis of C H N S O in an automatic elemental analyzer. A combustion reactor is provided with a sampling device and an oxygen feed line. Controlled volumes of oxygen are admitted with the oxygen feed line into the combustion reactor depending on the sample for the complete combustion thereof. A pneumatic circuit is provided, in which the oxygen feed line converges and the pneumatic circuit creates a continuous flow of a carrier gas that is able to carry the oxygen to the reactor and the gases of the combustion through the reactor, then through a gas chromatographic analyzer, and after their separation, into a thermal conductivity detector. An electronic apparatus with a data processor is provided for controlling the process systems. The difference in the pressure of the gas upstream and downstream of a restrictor or restriction is determined. The electronic pressure regulator or flow regulator of the reference carrier gas and at least one carrier gas outlet valve, which is also used as purging, is inserted on this carrier gas reference line.
摘要翻译:提供了一种与气相色谱相连的动态闪燃反应方法和装置,用于在自动元素分析仪中对C H N S O进行元素分析。 燃烧反应器设置有取样装置和氧气供给管线。 根据用于其完全燃烧的样品,氧气的受控体积被氧气进入管线进入燃烧反应器。 提供了一种气动回路,其中氧气供给管线汇合,气动回路产生能够将氧气输送到反应器的氧气和通过反应器的燃烧气体的载气的连续流,然后通过气相色谱 分析仪,并在分离后进入热导检测器。 提供具有数据处理器的电子设备用于控制处理系统。 确定限流器或限制器上游和下游气体的压力差。 参考载体气体的电子压力调节器或流量调节器以及还用作清洗的至少一个载气出口阀被插入到该载气参考线上。
摘要:
A sampler for an elemental analyzer comprises a sample housing suitable to accommodate one or more samples, sealed in tin or silver capsules, to be analyzed, a closure mechanism suitable to reversibly seal the sample housing, a sample passage having a connection opening for the passage by gravity of the one or more samples from the sampler into the analyzer through the connection opening. The sampler further comprises a heater for heating the sample housing and a vacuum system or other means for pumping out environmental gases and vapors from the sample housing.
摘要:
A method and device are provided for dynamic flash combustion reaction connected with gas chromatography for the elemental analysis of C H N S O in an automatic elemental analyzer. A combustion reactor is provided with a sampling device and an oxygen feed line. Controlled volumes of oxygen are admitted with the oxygen feed line into the combustion reactor depending on the sample for the complete combustion thereof. A pneumatic circuit is provided, in which the oxygen feed line converges and the pneumatic circuit creates a continuous flow of a carrier gas that is able to carry the oxygen to the reactor and the gases of the combustion through the reactor, then through a gas chromatographic analyzer, and after their separation, into a thermal conductivity detector. An electronic apparatus with a data processor is provided for controlling the process systems. The difference in the pressure of the gas upstream and downstream of a restrictor or restriction is determined. The electronic pressure regulator or flow regulator of the reference carrier gas and at least one carrier gas outlet valve, which is also used as purging, is inserted on this carrier gas reference line.
摘要翻译:提供了一种与气相色谱相连的动态闪燃反应方法和装置,用于在自动元素分析仪中对C H N S O进行元素分析。 燃烧反应器设置有取样装置和氧气供给管线。 根据用于其完全燃烧的样品,氧气的受控体积被氧气进入管线进入燃烧反应器。 提供了一种气动回路,其中氧气供给管线汇合,气动回路产生能够将氧气输送到反应器的氧气和通过反应器的燃烧气体的载气的连续流,然后通过气相色谱 分析仪,并在分离后进入热导检测器。 提供具有数据处理器的电子设备用于控制处理系统。 确定限流器或限制器上游和下游气体的压力差。 参考载体气体的电子压力调节器或流量调节器以及还用作清洗的至少一个载气出口阀被插入到该载气参考线上。