Nuctech Company Limited

Changzhuo Chen

Yangtian Zhang

Wen He

Yuntai Bao

Haichao Zhou

Hua Peng

Haijun Yu

Yi Xiao

Wangyang Wu

Qifang Wang

The present disclosure discloses a corona discharge assembly, an ion mobility spectrometer and a corona discharge method. The corona discharge assembly includes at least one corona discharge unit, wherein, the corona discharge unit includes a pair of corona metal wires arranged in parallel, and pulses having the same amplitude but opposite polarities are applied to the corona metal wires arranged in parallel, respectively. The present disclosure can generate more reactive ions than corona needles or tips, facilitate improving sensitivity of the ion mobility spectrometer, and effectively prolong service life of a corona source to 3-10 years.

Corona discharge assembly, ion mobility spectrometer and corona discharge method

The present disclosure discloses a continuous operable gas purification device in an ion mobility spectrometer including a housing provided with a cylinder cavity; a dry gas supply unit; a rotating barrier arranged in a radial direction of the cylinder cavity to divide it into a baking cavity and a working cavity; and a rotating mechanism. The housing is provided with a dry gas inlet and a dry gas outlet, which are communicated with the baking cavity, and a sample gas inlet and a sample gas outlet, which are communicated with the working cavity. The dry gas supply unit is connected with the dry gas inlet for a dry gas supply to the dry gas inlet. The baking cavity is provided with a heating unit correspondingly. The rotating mechanism is provided at a central position of the cylinder cavity and connected with the rotating barrier for rotating it at intervals.

Continuous operable gas purification device in an ion mobility spectrometer

Growing community of inventors

Beijing, China

Changzhuo Chen