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Portable low-field nuclear magnetic resonance old frying oil analysis meter

A low-field nuclear magnetic resonance, frying old oil technology, applied in the direction of using nuclear magnetic resonance for analysis, can solve problems such as inability to detect, and achieve the effects of easy portability, improved work efficiency, high accuracy and stability

Active Publication Date: 2013-11-27
SHANGHAI NIUMAI ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method needs to be tested in the laboratory, and the experimental instruments and the like are all fixed in position and hardly move, which brings a lot of inconvenience and cannot be detected on the spot in time. Low field nuclear magnetic resonance frying oil analyzer

Method used

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  • Portable low-field nuclear magnetic resonance old frying oil analysis meter
  • Portable low-field nuclear magnetic resonance old frying oil analysis meter
  • Portable low-field nuclear magnetic resonance old frying oil analysis meter

Examples

Experimental program
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Effect test

Embodiment

[0028] Such as figure 1 As shown, a magnet cabinet 2, a radio frequency cabinet 3 and a spectrometer 4 are fixedly arranged in the portable case 1, and the heights of the three are the same. When the portable case 1 is closed, they can be just in the portable case 1, and one end of the portable case 1 Also be provided with handle 11, when will move portable case 1, easy to carry.

[0029] figure 2 It is the internal schematic diagram of the magnet cabinet 2, the magnet 22 is close to the inner wall of the magnet cabinet wall 21, the radio frequency coil 23 is arranged in the middle of the magnet cabinet 2, and the radio frequency coil 23 is provided with a sampling hole 24, and the central axis of the sampling hole 24 and the magnet 22 The central axis of the magnet cabinet 2 is coincident, and one end of the sample injection hole 24 is exposed outside the magnet cabinet 2.

[0030] image 3 It is the internal schematic diagram of radio frequency cabinet 3, and radi...

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Abstract

The invention discloses a portable low-field nuclear magnetic resonance old frying oil analysis meter. The analysis meter comprises a portable tank and a display, wherein the portable tank internally comprises a magnetic body cabinet, a radio-frequency cabinet and a spectrometer. According to the analysis meter, a sample is put into a sample feeding hole, the sample in a magnetic field is stimulated by a radio-frequency coil after a radio-frequency signal generated by the spectrometer is firstly subjected to power amplification by a radio-frequency power amplifier in the radio-frequency cabinet, a nuclear magnetic resonance signal of the sample is received by the radio-frequency coil after the stimulation is finished and then is received and processed by the spectrometer after being filtered and amplified by a pre-amplifier, software aiming at the quality analysis and application of edible oil is preinstalled in the spectrometer, and a result is obtained after analysis. The required time for detecting a sample does not exceed two minutes. The portable low-field nuclear magnetic resonance old frying oil analysis meter has the main characteristics of being convenient to carry, capable of quickly detecting and beneficial to field detection, and ensuring high correctness and stability of a detection result obtained by utilizing a low-field nuclear magnetic resonance technique.

Description

technical field [0001] The invention relates to the field of low-field nuclear magnetic resonance oil quality analysis, in particular to an analysis instrument for identifying old frying oil by low-field nuclear magnetic resonance. Background technique [0002] In recent years, the scale of waste oil returning to the dining table has seriously threatened the lives and health of consumers. The old oil used by repeated frying is the most common waste oil in daily life. At the same time, old frying oil is most likely to be used as edible oil by some profit-seeking catering shops. The lack of effective detection technology and standards, especially the technology that can be used to quickly and accurately detect old frying oil, makes this phenomenon difficult to control. [0003] Edible oil, as a daily consumer product, permeates all industries of various sizes in the society, not only in every family and dining place, but also in large and small sales markets. The invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N24/08
Inventor 杨培强刘利荣张英力孙宝刚石志东
Owner SHANGHAI NIUMAI ELECTRONICS TECH
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