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Establishment method of lavender essential oil characteristic component quantitative analysis model based on near-infrared Raman spectrum fusion and quantitative analysis method

A lavender essential oil and near-infrared spectroscopy technology, which is applied in the field of content determination of characteristic components of lavender essential oil, can solve the problems of difficult and fast quantitative detection, time-consuming and other problems, and achieve rapid determination of main component content, improved analysis efficiency, and comprehensive fusion of spectral information Effect

Pending Publication Date: 2021-04-02
YILI ZISULIREN BIOLOGICAL TECH CO LTD
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Problems solved by technology

[0003] At present, the methods for determining the chemical components of lavender essential oil mainly include gas chromatography and gas chromatography-mass spectrometry, but these methods are time-consuming and difficult to achieve rapid quantitative detection in large quantities

Method used

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  • Establishment method of lavender essential oil characteristic component quantitative analysis model based on near-infrared Raman spectrum fusion and quantitative analysis method
  • Establishment method of lavender essential oil characteristic component quantitative analysis model based on near-infrared Raman spectrum fusion and quantitative analysis method
  • Establishment method of lavender essential oil characteristic component quantitative analysis model based on near-infrared Raman spectrum fusion and quantitative analysis method

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Experimental program
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Effect test

Embodiment

[0099] 1. Collect lavender essential oil samples, all samples come from 100 lavender essential oil samples in Yili, Xinjiang, and divide all samples into 70 calibration set samples and 30 verification set samples. The calibration set samples are used to establish the calibration model, and the validation set The samples are used to verify the model, and the content distribution of the characteristic components of the final calibration set and verification set samples is shown in Table 1 below.

[0100] Table 1 Percentage distribution of characteristic components of lavender essential oil

[0101]

[0102] 2. Instrument

[0103] Fourier transform near-infrared spectrometer: VERTEX 70 from BRUKER; laser Raman spectrometer: LabRAM HR Evolution from HORBIA; gas chromatograph: Agilent Technologies, 5890.

[0104] 3. Spectrum acquisition and preprocessing

[0105] 3.1 Near-infrared spectrum acquisition and preprocessing

[0106] Use the transmission mode, choose a quartz cuvet...

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Abstract

The invention provides an establishment method of a lavender essential oil characteristic component quantitative analysis model based on near-infrared Raman spectrum fusion and a quantitative analysismethod. The establishment method comprises the following specific steps of: (1) collecting a lavender essential oil sample; (2) obtaining the characteristic and representative component percentage content of the lavender essential oil sample according to the gas chromatography in the national standard; (3) collecting near-infrared light and Raman spectrograms of the lavender essential oil sample,and performing baseline correction and vector normalization processing on the measured near-infrared light and Raman spectrograms; (4) fusing the near-infrared spectrum and the Raman spectrum by adopting a spectrum parallel mode, and sharing the same coordinate; (5) establishing a partial least square quantitative correction model; and (6) determining the lavender essential oil sample by adoptingthe established quantitative analysis model. The lavender essential oil is subjected to quantitative quality analysis by the method, and the method is simple and convenient to operate, accurate, time-saving and efficient.

Description

technical field [0001] The present invention relates to the technical field of content determination of characteristic components of lavender essential oil, in particular to a method for establishing a quantitative analysis model of characteristic components of lavender essential oil based on near-infrared Raman spectrum fusion and a quantitative analysis method. Background technique [0002] Lavender essential oil is the volatile oil extracted from the fresh open inflorescences of Lavandula angustifolia Mill. through steam distillation. Lavender essential oil is a complex mixture of different types of aromatic compounds, and the ratio of different compounds directly affects the quality of lavender essential oil. In the national standard of lavender essential oil in China, gas chromatography is used to determine the content of characteristic components in lavender essential oil. National standard "GB / T12653-2008 Chinese lavender (essential) oil", the qualified range of repre...

Claims

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Application Information

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IPC IPC(8): G01N21/359G01N21/65
CPCG01N21/359G01N21/65
Inventor 唐军韩凯乐吴建强齐雨顾湘雯罗伟康杨建新
Owner YILI ZISULIREN BIOLOGICAL TECH CO LTD
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