公开(公告)号：US20240118255A1

公开(公告)日：2024-04-11

申请号：US18389671

申请日：2023-12-19

Applicant: NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS

Inventor： Chunhui CAO ,  Liwu LI ,  Huanhuan ZHAO

IPC: G01N33/00

CPC classification number: G01N33/0036

Abstract: A buffer assembly for a noble gas isotope analysis device, including an air inlet pipe and an air-pressure buffer member. The air inlet pipe is connected to the noble gas isotope analysis device, and is provided with a valve. The air-pressure buffer member is provided in the air inlet pipe, and includes a connecting pipe arranged inside the air inlet pipe. Multiple pneumatic components are sleeved outside the connecting pipe, and are configured to be deformed under the action of a gas flow to decelerate the gas flow. A noble gas isotope analysis device including the buffer assembly and an isotope analysis method using the noble gas isotope analysis device are also provided.

公开(公告)号：US20220065760A1

公开(公告)日：2022-03-03

申请号：US17524181

申请日：2021-11-11

Applicant: Northwest Institute of Eco-Environment and Resources, CAS

Inventor： Chunhui CAO ,  Liwu LI ,  Huanhuan ZHAO ,  Zhongping LI ,  Li DU

IPC: G01N1/40 ,  B01D53/26 ,  B01D53/81 ,  B01D53/46 ,  B01D53/04 ,  B01D53/75 ,  H01J49/04

Abstract: Disclosed are a gas purification device, and an apparatus and a method for measuring isotopes of noble gases. The gas purification device includes a housing and a purification mechanism. The housing is provided with a reaction chamber. The reaction chamber is in a vacuum state and is configured to hold a gas sample. The purification mechanism is arranged on the housing and is provided with a cavity. The cavity in the purification mechanism is communicated with the reaction chamber. The purification mechanism is configured to purify the gas sample in the reaction chamber to obtain a purified gas.