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Quick detection method of lavender essential oil categories on the basis of Fourier-Raman spectrum

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

Inactive Publication Date: 2016-07-06
XINJIANG UNIVERSITY
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  • 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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  • Quick detection method of lavender essential oil categories on the basis of Fourier-Raman spectrum
  • Quick detection method of lavender essential oil categories on the basis of Fourier-Raman spectrum
  • Quick detection method of lavender essential oil categories on the basis of Fourier-Raman spectrum

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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 ...

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 ...

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 va...

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Abstract

The invention relates to the technical field of distinguishing lavender essential oil and provides a quick detection method of lavender essential oil categories on the basis of Fourier-Raman spectrum. The method includes the following steps: 1) collecting spectrum; 2) selecting and analyzing characteristic wavelengths; and 3) recognition of to-be-test samples: with Raman scattering value in three pretreated characteristic wavelength bands as an XP data collection, and predicting category variable Y to the XP data collection in an established OPLS-DA model of all categories of the lavender essential oil, wherein prediction value is defined as Yp, when Yp is more than 0.5 and deviation is less than 0.5, determining the category of the lavender essential oil. The method, on the basis of the Fourier Raman spectrum, has equal accuracy of a gas chromatography / mass spectrum technology in the prior art in the quick detection of the lavender essential oil categories. The method achieves nondestructive testing, has high analytic efficiency and speed, and is low in detection cost, and is suitable for quickly detecting the lavender essential oil categories.

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 Applications(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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