公开(公告)号：US12194437B2

公开(公告)日：2025-01-14

申请号：US18426149

申请日：2024-01-29

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

Inventor： Yingqin Wu ,  Rong Ma ,  Yanhong Liu ,  Longmiao Yuan ,  Zhiyu Wang ,  Lantian Xing ,  Yan Liu ,  Yongxin Chen ,  Chuntao Tian

IPC: B01J20/26 ,  B01D15/08 ,  C08F220/06 ,  C08J9/26 ,  G01N30/72 ,  G01N30/02

Abstract: A preparation method of a molecularly imprinted polymer (MIP) for separation and concentration of 4-methylsterane compounds is provided. A template molecule, a functional monomer, a porogen, an initiator and a cross-linking agent are mixed and subjected to polymerization to prepare a polymer with the template molecule, which is then treated to remove the template molecule, so as to give the desired MIP. The template molecule is β-sitosterol or deoxycholic acid. The obtained molecularly imprinted polymer has multiple stable hole structures and binding sites inside, and has memory and recognition functions for the 4-methylsterane compounds, exhibiting excellent specific adsorption performance. The MIP can contribute to the accurate identification of correlation between depositional environment and maturity of crude oils or source rocks. A molecularly imprinted polymer prepared by such method, a chromatographic column and an application thereof are also provided.

公开(公告)号：US12153031B1

公开(公告)日：2024-11-26

申请号：US18791353

申请日：2024-07-31

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

Inventor： Chunhui Cao ,  Liwu Li ,  Zhifu Wei ,  Zhongping Li ,  Lantian Xing ,  Yan Liu

IPC: G01N33/00 ,  G01N33/18

Abstract: A detection device includes a chamber, a top of the chamber is cover with a chamber cover, and a side wall of the chamber is provided with a port D5. The chamber is provided with a first waterproof layer and a second waterproof layer, and a water storage layer is disposed between the first waterproof layer and the second waterproof layer. A water supply pipe is disposed in the water storage layer, and the water supply pipe includes a port D2 and a port D7. An end second pipe is connected to the port D2, and another end of the second pipe facing away from the first pipe is provided with a port D3. An online detection component and a vacuum extraction system are disposed outside the chamber. The detection device can quantitatively simulate and detect the process of rare gas migration and accumulation under formation water conditions.