Terahertz cooking oil detection chip and cooking oil detection method

Abstract

The invention provides a terahertz cooking oil detection chip and a cooking oil detection method. The terahertz cooking oil detection chip and the cooking oil detection method have the advantages thatefficient waveguide transmission devices, namely coplanar waveguide, and efficient energy input ends of the efficient waveguide transmission devices are designed, resonance of resonant rings can be excited by the efficient waveguide transmission devices, the efficient energy input ends and surface plasma polaritons, resonant peaks with high Q values (200-300) can be generated and can be observedvia detectors, accordingly, high-sensitivity terahertz detection can be carried out on different types of cooking oil, the scientific difficult problems in the aspect of cooking oil component quick detection can be solved by the aid of the terahertz cooking oil detection chip and the cooking oil detection method, and the foundation can be laid for carrying out scientific research work in later periods and solving problems in real life; the terahertz cooking oil detection chip is easy and convenient to operate during practical application, and the detection efficiency of terahertz waveband sensors can be improved.

Description

technical field [0001] The invention relates to the technical field of edible oil detection, in particular to a terahertz edible oil detection chip and a detection method for edible oil. Background technique [0002] After different types of edible oils are heated at high temperatures for many times, their structures will change, forming harmful substances with ring structures such as benzopyrene. Long-term consumption has a great impact on human health. At present, the methods for more accurate detection of practical oil are headspace solid-phase microextraction-gas chromatography-mass spectrometry, conductivity method, high-performance liquid chromatography, ion chromatography, near-infrared spectroscopy, nuclear magnetic resonance spectroscopy, etc. The headspace solid-phase microextraction-gas chromatography-mass spectrometry method uses headspace solid-phase microextraction to extract trace exogenous impurities, and then uses gas chromatography-mass spectrometry to det...

AI Technical Summary

Problems solved by technology

The nuclear magnetic resonance spectrum method is to realize the identification by detecting the nuclear magnetic resonance hydrogen spectrum and carbon spectrum of the oil sample and observing the change of its peak value. These measurement methods are complicated in principle, difficult to operate, and have certain limitations.

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