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Nuclear magnetic resonance analysis device with high resolution ratio

A nuclear magnetic resonance and analysis device technology, applied in magnetic resonance measurement, using magnetic variable measurement, etc., can solve the problems of difficult high-resolution nuclear magnetic resonance experiments and unsatisfactory radio frequency fields, and achieve good radio frequency magnetic field distribution, fine structure, and reduced The effect of small jam rate

Active Publication Date: 2013-06-26
银麦国科(厦门)生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current common RF coils, such as solenoid RF coils and Helmholtz RF coils, can apply a maximum RF field strength of 10~15kHz, which does not meet the requirements for applying higher power RF fields, making Performing high-resolution NMR experiments becomes difficult

Method used

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  • Nuclear magnetic resonance analysis device with high resolution ratio
  • Nuclear magnetic resonance analysis device with high resolution ratio
  • Nuclear magnetic resonance analysis device with high resolution ratio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Embodiment: a kind of nuclear magnetic resonance analyzer, as attached Figure 1~6 shown, including:

[0034] Frequency meter 1, used to generate radio frequency pulse signal;

[0035] The radio frequency oscillator 2 generates a corresponding pulse current according to the radio frequency pulse signal from the frequency meter, and receives a sample feedback signal from the radio frequency coil;

[0036] The radio frequency coil 3, according to the alternating electromagnetic field of the pulse current product from the radio frequency oscillator 2, and inductively generates a sample feedback signal representing the energy level of the sample nuclear spin, the radio frequency coil 3 includes an even number of rectangular sub-coils 31, the rectangular The long side 32 of one side of the sub-coil 31 is extended to form a first transmission line 33 located at the axis, the short side 34 adjacent to the long side 32 is bent and extended to form a second transmission line 35...

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Abstract

The invention discloses a nuclear magnetic resonance analysis device with high resolution ratio. The nuclear magnetic resonance analysis device comprises a frequency meter, a radiofrequency oscillator, radiofrequency coils, a modulation receiver, a sample tube, a first magnetic body and a second magnetic body. The radiofrequency coils include rectangular coil units in even number, one long edge of each rectangular coil unit extends to form a first transmission line locating at the axis, and one short edge adjacent to the long edge bends to extend to form a second transmission line. The sample tube is mounted on a rotor adapter which comprises a column with a through hole; an upper fastener and a lower fastener are respectively arranged on the upper end face and the lower end face of the column; each of the upper fastener and the lower fastener consists of a plurality of fastener pieces, the fastener pieces are arranged along the circumference of each end face at intervals, and thus, the through hole for holding the sample tube is reserved at the center of the upper fastener and the lower fastener. A column cap is arranged on the upper portion of the column and positioned on the periphery of the upper fastener. The first magnetic body and the second magnetic body are respectively positioned on two sides of the sample tube. The nuclear magnetic resonance analysis device has high quality factors. High-power excitation and effective radiofrequency magnetic field distribution are realized, while measurement precision and sensitivity are improved greatly. Besides, stability of samples during rotating is improved, and jamming rate during sample feeding is lowered.

Description

technical field [0001] The invention relates to the field of nuclear magnetic resonance analysis devices, in particular to a high-resolution nuclear magnetic resonance analysis device. Background technique [0002] In view of the wide application of nuclear magnetic resonance technology in basic research such as chemistry and biology, as well as in clinical medicine and drug development, various high-resolution nuclear magnetic resonance analysis techniques have become important tools in biochemical research. To obtain high-quality NMR spectra, parameters such as the variable temperature performance and rotation stability of the NMR rotor adapter are very important. In particular, if you want to obtain high-resolution NMR spectra, you need to use a rotor adapter with a large temperature range (-200 to 200°C) and rotate the sample (greater than 20 rpm). At this time, you need to ensure the stability of the sample tube during rotation. sex. The magnetic susceptibility and ma...

Claims

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Application Information

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IPC IPC(8): G01R33/44G01R33/30
Inventor 杨晓冬刘小龙张云
Owner 银麦国科(厦门)生物科技有限公司
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