Rapid detection method of lavender essential oil varieties based on Fourier Raman spectroscopy

A lavender essential oil and detection method technology, which is applied in the field of rapid detection of lavender essential oil varieties, can solve the problems of long detection time, samples cannot be reused and detection costs, etc., and achieve the effects of fast analysis speed, low detection cost and high analysis efficiency

Inactive Publication Date: 2018-10-16
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a kind of fast detection method based on the lavender essential oil variety of Fourier Raman spectrum, overcomes the above-mentioned deficiencies in the prior art, and it can effectively solve the problem of essential oil The traditional identification technology has the problems of long detection time, unreusable samples and high detection cost

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  • Rapid detection method of lavender essential oil varieties based on Fourier Raman spectroscopy
  • Rapid detection method of lavender essential oil varieties based on Fourier Raman spectroscopy
  • Rapid detection method of lavender essential oil varieties based on Fourier Raman spectroscopy

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Effect test

Embodiment 1

[0022] Embodiment 1, the rapid detection method of the lavender essential oil variety based on Fourier Raman spectrum, is carried out according to the following steps: the first step, spectrum collection, the lavender essential oil to be tested is packed in the NMR tube, and the Fourier Raman spectrometer is set to test Conditions, spectral range: 3500cm -1 to 200cm -1 , Resolution: 4cm -1 , the number of scanning accumulations is 32 to 128 times, and the Raman spectrum is obtained after scanning; the second step is the selection and analysis of the characteristic wavelength, and the three characteristic wavelength bands of the Raman spectrum are 3106.2cm -1 to 2683.9cm -1 、1760.1cm -1 to 1222.1cm -1 、844.09cm -1 to 585.77cm -1 The Raman scattering intensity value is preprocessed; the third step is the identification of the sample to be tested, and the preprocessed three characteristic wavelength bands 3106.2cm -1 to 2683.9cm -1 、1760.1cm -1 to 1222.1cm -1 、844.09cm ...

Embodiment 2

[0023] Embodiment 2, as the optimization of the above-mentioned embodiment, each lavender essential oil OPLS-DA model is established according to the following method: the first step, spectrum collection, the known lavender essential oils of various varieties are respectively installed in NMR tubes, and Fourier Raman is set Spectrometer test conditions, spectral range: 3500cm -1 to 200cm -1 , Resolution: 4cm -1 , the number of times of scanning accumulation is 32 times to 128 times, and the Raman spectra of the known varieties of lavender essential oils are respectively obtained after scanning; the second step is the selection and analysis of characteristic wavelengths, and the Raman spectra of the collected known varieties of lavender essential oils The figure calculates the variance in the full measurement range, and obtains the variance figure of the Raman measurement wavelength of the known species of lavender essential oil samples. The three characteristic wavelength ban...

Embodiment 3

[0027] Embodiment 3, as the optimization of above-mentioned embodiment, each lavender essential oil OPLS-DA model is set up by following method: the first step, spectral collection, three kinds C-197 (2) lavender essential oil, French blue lavender essential oil and H -701 lavender essential oil A total of 95 lavender essential oil samples, randomly take 80% of each lavender essential oil sample, and then put the known varieties of lavender essential oil into NMR tubes respectively, set the test conditions of Fourier Raman spectrometer, spectral range: 3500cm -1 to 200cm -1 , Resolution: 4cm -1 , the number of times of scanning accumulation is 32 times to 128 times, and the Raman spectra of the known varieties of lavender essential oils are respectively obtained after scanning; the second step is the selection and analysis of characteristic wavelengths, and the Raman spectra of the collected known varieties of lavender essential oils The figure calculates the variance in the ...

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Abstract

The invention relates to the technical field of lavender essential oil identification, and is a rapid detection method of lavender essential oil varieties based on Fourier Raman spectrum; the following steps are carried out: the first step is spectrum collection; the second step is the selection and analysis of characteristic wavelengths; the second step is The third step is the identification of the sample to be tested. The Raman scattering intensity values ​​​​of the three characteristic wavelength bands after pretreatment are used as the XP data set, and the class variable Y is performed on the XP data set in the OPLS‑DA model of each lavender essential oil The prediction of , the predicted value is defined as Yp, when Yp>0.5, and the deviation<0.5, it is judged to belong to this category. The accuracy of the rapid detection method of lavender essential oil varieties based on Fourier Raman spectroscopy in the present invention is equivalent to that of the existing gas chromatography / mass spectrometry technology; the present invention has the unique advantages of non-destructive detection, high analysis efficiency, fast analysis speed and low detection cost , suitable for rapid detection of lavender essential oil varieties.

Description

technical field [0001] The invention relates to the technical field of lavender essential oil identification, and relates to a rapid detection method of lavender essential oil varieties based on Fourier Raman spectrum. Background technique [0002] Lavender Lavandula angustifolia Mill , is a plant of the genus Lavender of the Labiatae, a perennial subshrub. The lavender planting area in Xinjiang accounts for about 95% of the national planting area, and it is the largest lavender planting base in the country. As the extract of lavender flower spikes, lavender essential oil has become the main economic product of lavender plants, and is widely used in various daily cosmetics as a precious spice. In addition, lavender essential oil also has anticonvulsant, bactericidal, hypnotic, and sedative effects. However, there are many varieties of lavender, and as the commercial value of lavender essential oil increases in the market, the identification of lavender essential oil varie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/65
Inventor 符继红赵洁唐军史岷山王强
Owner XINJIANG UNIVERSITY
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