A Headspace Solid Phase Microextraction-Gas Chromatography Detection and Analysis Method for the Essential Oil Components of Seabuckthorn
A solid-phase microextraction head and gas chromatography-mass spectrometry technology, which can be applied in analysis materials, measuring devices, material separation, etc., can solve the problem of less volatile oil of sea buckthorn, and achieve the effects of accurate qualitative, reliable results and high degree of automation
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Embodiment 1
[0024] Embodiment 1, detection and analysis of seabuckthorn volatile oil components
[0025] 1 Materials and reagents
[0026] Sodium chloride, anhydrous sodium sulfate, and n-hexane were of analytical grade and purchased from Guangzhou Chemical Reagent Factory, China; n-alkane mixed standard (C7-C40) was purchased from O2si Company, USA.
[0027] Seabuckthorn dried medicinal material (origin: Inner Mongolia, batch number: 180201), with a moisture content of 7.8% and a total ash content of 3.8%, was purchased from Nanguo Yaodu Traditional Chinese Medicine Pieces Co., Ltd., Hunan Province.
[0028] 2 Instruments and equipment
[0029] TSQ 8000 gas chromatography-triple quadrupole tandem mass spectrometer: equipped with electron ionization source and Xcalibur data processing system, TRIPLUS RSH autosampler, 20mL headspace sample bottle, solid phase microextraction automatic sampling handle, American Thermo company; 50 / 30 μm DVB / CAR / PDMS solid-phase microextraction head, Supel...
Embodiment 2
[0048] Embodiment 2, the screening of headspace solid-phase microextraction condition
[0049] Since the extraction effect of the headspace-solid phase microextraction method is affected by conditions such as extraction time, extraction temperature, desorption time, and equilibrium time, the present invention compares the The effects of different extraction time, extraction temperature, desorption time, and equilibrium time on the extraction effect of seabuckthorn volatile substances, and determine the optimization parameters.
[0050] The experimental method is carried out according to Example 1, wherein the extraction time, extraction temperature, desorption time, and equilibrium time are selected according to Table 2, and the results of different extraction times, extraction temperatures, desorption time, and equilibrium time on the extraction effect of seabuckthorn volatile substances are shown in Table 2 .
[0051] Table 2 Effects of different factors on the extraction e...
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