Para-hydrogen enrichment device and method for nuclear magnetic resonance para-hydrogen induced polarization
A nuclear magnetic resonance and enrichment technology, applied in the field of magnetic resonance spectroscopy, can solve the problems of inability to meet the instantaneous switching of parahydrogen and orthohydrogen gas, inability to meet the application requirements of portable parahydrogen sources, slow parahydrogen enrichment rate, etc. Easy to manufacture and maintain, simple structure, high stability
Active Publication Date: 2019-12-13
WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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Problems solved by technology
At present, there is no corresponding device design in China to meet the needs. The para-hydrogen enrichment rate of existing foreign devices is relatively slow, and cannot meet the instantaneous switching of para-hydrogen and ortho-hydrogen gases. Hydrogen source application requirements
Method used
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Embodiment 1
[0039] A parahydrogen enrichment device using parahydrogen-induced polarization technology for improving the sensitivity of nuclear magnetic resonance spectrometers, which consists of a first pressure gauge 1, a first straight-through valve 2, a first one-way valve 3, and a first mass flow rate Controller 4, gas purifier 5, first three-way valve 6, pre-cooling pipe 7, conversion chamber 8, second pressure gauge 9, second one-way valve 10, second three-way valve 11, second straight-through valve 12 , a third pressure gauge 13, a parahydrogen storage bin 14, a vacuum gauge 15, a vacuum pump 16, a third one-way valve 17, a third three-way valve 18, a second mass flow controller 19, and an insulation bin 20.
[0040] It is characterized in that: the first pressure gauge 1 is connected to one end of the first through valve 2 through a pipeline, the other end of the first through valve 2 is connected to the inlet of the first one-way valve 3, and the outlet of the first one-way valve...
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The invention discloses a para-hydrogen enrichment device and method for nuclear magnetic resonance para-hydrogen induced polarization. A pressure gauge is connected with a straight-through valve through a pipeline; the other end of the straight-through valve is connected with a one-way valve; the one-way valve is connected with a mass flow controller; the mass flow controller is connected with agas purifier; the gas purifier is connected with a three-way valve; the three-way valve is connected with a pre-cooling pipe; the other end of the pre-cooling pipe is connected with a conversion chamber; the other end of the conversion chamber is connected with a pressure gauge and a one-way valve; the outlet of the one-way valve is connected with a three-way valve through a pipeline; the three-way valve is connected with a straight-through valve; the other end of the straight-through valve is connected with a pressure gauge and a para-hydrogen storage bin through pipelines; the three-way valve is connected with a vacuum gauge and a vacuum pump through pipelines; the three-way valve is connected with a one-way valve; the one-way valve is connected with a three-way valve; and the three-wayvalve is connected with a mass flow controller. The invention further relates to a using method of the device. The device is simple in structure and easy and convenient to control and operate, and para-hydrogen gas generation with high proportion and variable gas flow rate and stable hyperpolarized nuclear magnetic spectrogram signal acquisition are realized.
Description
technical field [0001] The present invention relates to the technical field of magnetic resonance spectroscopy, more specifically to a parahydrogen enrichment device for parahydrogen-induced polarization for improving the sensitivity of nuclear magnetic resonance spectrometers, and also to a method for using the parahydrogen enrichment device . It is suitable for NMR polarization techniques using parahydrogen gas as the polarization source, such as high-field in-situ polarization technique (PASADENA), low-field pre-polarization technique (ALTADENA), reversible exchange polarization technique (SABRE), 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 s...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01N24/08G01R33/44G01R33/30
CPCG01N24/08G01R33/307G01R33/44
Inventor 王伟宇徐君邓风
Owner WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI