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High-field in-situ polarization device and method utilizing parahydrogen to induce polarization

A high-field, in-situ technology, applied in the field of magnetic resonance spectroscopy, can solve problems such as inability to meet application requirements, loss of polarization signals, and impact on the quality of the spectrum, and achieve easy production and maintenance, uniform and stable magnetic field, and simple operation. Effect

Active Publication Date: 2020-08-25
INNOVATION ACAD FOR PRECISION MEASUREMENT SCI & TECH CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no corresponding device design in China to meet the needs. The existing high-field in-situ polarization technology in foreign countries has poor magnetic field stability, which affects the quality of the spectrum, and NMR sampling has a certain delay, resulting in the loss of polarization signals. , to reduce the signal strength, and the instrument device is relatively bulky, which cannot meet the application requirements in a specific environment

Method used

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  • High-field in-situ polarization device and method utilizing parahydrogen to induce polarization

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Embodiment 1

[0039] A high-field in-situ polarization device using parahydrogen-induced polarization, including a vacuum pump 19, including a parahydrogen inlet channel, a reaction gas inlet channel and a reaction sampling tube 22,

[0040]The outlet end of the reaction gas inlet channel is connected to one end of the third through valve 11, and the other end of the third through valve 11 is respectively connected to the outlet end of the parahydrogen inlet channel, one end of the fourth through valve 12 and one end of the fifth through valve 13, The other end of the fifth through valve 13 is connected to the inlet end of the third one-way valve 14, and the outlet end of the third one-way valve 14 is respectively connected to one end of the eighth through valve 21 and one end of the sixth through valve 15, and the eighth through valve 21 The other end is connected to the reaction sampling pipe 22, the other end of the sixth through valve 15 is connected to the vacuum pump 19 through the vac...

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Abstract

The invention discloses a high-field in-situ polarization device utilizing parahydrogen to induce polarization. The gas outlet end of the reaction gas inlet channel is connected with one end of a third straight-through valve; the other end of the third straight-through valve is respectively connected with the gas outlet end of the parahydrogen gas inlet channel, the fourth straight-through valve end and one end of a fifth straight-through valve; the other end of the fifth straight-through valve is connected with the inlet end of a third one-way valve; the outlet end of the third one-way valveis respectively connected with one end of an eighth straight-through valve and one end of a sixth straight-through valve; the other end of the eighth straight-through valve is connected with a reaction sampling pipe, the other end of the sixth straight-through valve is connected with a vacuum pump sequentially through a vacuum bin, a seventh straight-through valve and a vacuum gauge, a third pressure gauge is arranged at the end, connected with the outlet end of the third one-way valve, of the eighth straight-through valve, and the reaction sampling pipe is placed in a nuclear magnetic resonance magnet. The invention further discloses a high-field in-situ polarization method utilizing parahydrogen to induce polarization. The device is simple in structure and easy and convenient to controland operate, and efficient polarization generation and stable polarization nuclear magnetic spectrogram signal collection are achieved.

Description

technical field [0001] The present invention relates to the technical field of magnetic resonance spectroscopy, more specifically to a high-field in-situ polarization device utilizing parahydrogen-induced polarization, and to a high-field in-situ polarization method utilizing parahydrogen-induced polarization . It is suitable for in-situ reaction system nuclear magnetic resonance polarization technology in high magnetic field environment with parahydrogen gas as the polarization source, such as gas-solid reaction system, gas-liquid reaction system, gas-liquid-solid reaction system, etc. Background technique [0002] NMR technology (Nuclear Magnetic Resonance, NMR) can give key information on material components, molecular structures and related dynamics. It is a very important research method and analysis method. It is currently used in many fields such as biology, chemistry, medicine and physics. have a wide range of applications. The nuclear magnetic signal intensity is ...

Claims

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Application Information

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IPC IPC(8): G01R33/30G01R33/46G01N24/08
CPCG01R33/30G01R33/46G01N24/08G01N24/087
Inventor 王伟宇徐君邓风
Owner INNOVATION ACAD FOR PRECISION MEASUREMENT SCI & TECH CAS
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