Device for studying molecular photoisomerization
A photoisomerization and molecular technology, applied in the field of spectrochemistry, can solve problems such as interaction, inability to overlap lasers, and low output of electrospray mass flow, and achieve the effects of small electric field intensity, long moving path, and avoiding excessive loss
Pending Publication Date: 2018-11-06
JINHUA VOCATIONAL TECH COLLEGE
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Problems solved by technology
Defect 1 of the prior art: The prior art cannot realize the interaction between the laser beam and the ion beam from the horizontal and vertical overlaps in the same device; Electrospray has low mass flow output, a device for studying molecular photoisomerization solves the problem
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[0031] Such as figure 1 It is a schematic diagram of the present invention, mainly comprising an electrospray device (1), an ion beamer I (2), an ion gate I (3), a laser I (4), a deflection electrode group I (5), a linear electrode group I (6 ), ion gate II (7), laser II (8), linear electrode set II (9), deflection electrode set II (10), ion beamer II (11), laser III (12), octopole ion guide Device (13), quadrupole mass filter (14), detector (15), vacuum chamber (16), drift chamber (17), gas inlet (18) and gas outlet (19), xyz is a three-dimensional coordinate system, The ion beamer I (2), ion gate I (3), deflection electrode group I (5), linear electrode group I (6), ion gate II (7), linear electrode group II (9), deflection The electrode group II (10) and the ion beamer II (11) are connected in sequence, the ion beamer I (2), the ion gate I (3), the bias electrode group I (5), the linear electrode group I (6 ), ion gate II (7), linear electrode group II (9), deflection ele...
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The invention relates to the field of spectrochemistry, and relates to a device for studying molecular photoisomerization. The device comprises an electric atomizing device, an ion buncher, an ion gate, laser devices, deflecting electrode groups, linear electrode groups, an octupole ion guiding device, a quadrupole mass filtering device, a detector, a vacuum cavity, a drifting cavity, a gas inletand a gas outlet, the deflecting electrode group is provided with nineteen annular electrodes, the included angle of the adjacent annular electrodes is five degree, the linear electrode is provided with twenty annular electrodes, the annular electrodes of a deflecting electrode II is provided with a through hole, and a laser emitted by a laser device III can pass through the through hole and entera drifting region in the z negative direction; a laser beam emitted by a laser device I can pass through a deflecting electrode group I and enter the drifting region, and a laser beam emitted by a laser device II can pass through a linear electrode group II and enter the drifting region; the electric atomizing device is composed of an outer tube, an inner tube, a baffle plate, an air inlet and aliquid outlet, the outer tube and the inner tube are cylindrical and are of coaxial embedding configurations, and a liquid passage is formed between the outer tube and the inner tube.
Description
technical field [0001] The invention relates to the field of spectrochemistry, in particular to a device for studying molecular photoisomerization with multiple photoexcitation modes. Background technique [0002] Photoisomerization refers to the structural change of molecules between isomers under light excitation, and the effect of photoisomerization on the chemical shift of each group and even each atom in the molecule can be judged by analyzing certain spectral lines. The impact is usually studied by mass spectrometry or ion mobility spectrometry, usually by injecting sample molecules into the drift region in the form of ions, and moving them through the electric field generated by the electrodes for subsequent measurements. Defect 1 of the prior art: The prior art cannot realize the interaction between the laser beam and the ion beam from the horizontal and vertical overlaps in the same device; The mass flow output of electrospray is low, a device for studying the phot...
Claims
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IPC IPC(8): G01N21/01G01N21/63
CPCG01N21/01G01N21/63
Inventor 傅晶晶张向平
Owner JINHUA VOCATIONAL TECH COLLEGE