Construction method for GC-MS (Gas Chromatography-Mass Spectrometer) fingerprint of edible oil and application of GC-MS fingerprint

A GC-MS and fingerprint technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of low detection efficiency, cumbersome operation, and inability to effectively use edible oil for qualitative analysis, and achieve high application value and identification accuracy. High, easy-to-use effects

Inactive Publication Date: 2014-12-24
徐州市食品药品检验所
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Problems solved by technology

When the edible oil to be detected is adulterated oil, the detection efficiency of this method is low and the

Method used

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  • Construction method for GC-MS (Gas Chromatography-Mass Spectrometer) fingerprint of edible oil and application of GC-MS fingerprint
  • Construction method for GC-MS (Gas Chromatography-Mass Spectrometer) fingerprint of edible oil and application of GC-MS fingerprint
  • Construction method for GC-MS (Gas Chromatography-Mass Spectrometer) fingerprint of edible oil and application of GC-MS fingerprint

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Embodiment 1

[0030] Construction of GC-MS Fingerprint of Edible Oil

[0031] 1. Materials and methods:

[0032] 1.1 Materials

[0033] Instruments: American Agilent 7890A-5975C gas chromatography-mass spectrometry; HP-5MS 5% Phenyl Methyl Silox capillary column (30m×0.25mm×0.25μm), Agilent Chemstation workstation, American Agilent NIST chemical database.

[0034] Main reagents: all chemical reagents are of analytical grade, and water is purified water.

[0035] Experimental objects: peanut oil, soybean oil, sunflower oil, corn oil, and olive oil are all commercially available qualified products.

[0036] 2. Method

[0037] 2.1 Construction of peanut oil standard fingerprint

[0038] (1) Sample pretreatment: Weigh 0.01g of peanut oil sample, put it in a colorimetric tube, add 1ml of benzene-petroleum ether mixture at a ratio of 1:0.5, shake well, add 1ml of 0.4mol / L KOH-methanol solution, Shake for 1 min, let stand for stratification, and take the supernatant, to be tested;

[0039] (...

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Abstract

The invention discloses a construction method for a GC-MS (Gas Chromatography-Mass Spectrometer) fingerprint of edible oil, and belongs to the field of edible oil detection and analysis. The construction method comprises the steps of (1) pretreating a sample; (2) collecting a GC-MS fingerprint of edible oil; and (3) constructing the GC-MS fingerprint of edible oil. The GC-MS fingerprint is applied to qualitative detection and adulteration detection of edible oil. Common peaks of the fingerprint are respectively calibrated by constructing the fingerprint of common edible oil; by virtue of quantitative and qualitative analysis on the common peaks, all oil samples to be detected can be distinguished and identified; adulterated edible oil can be analyzed and identified according to the GC-MS fingerprint; the construction method is used conveniently and quickly and is high in authentication accuracy. The GC-MS fingerprint has an extremely high application value in the aspects of daily edible oil quality analysis, market supervision, detection of industrial production and the like.

Description

technical field [0001] The invention relates to a method for constructing edible oil GC-MS fingerprints and an application thereof, belonging to the field of edible oil detection and analysis. Background technique [0002] Edible oil is a necessity in people's life, and its quality is closely related to people's health. There are many varieties of edible oils, common ones are corn oil, soybean oil, peanut oil, rapeseed oil, olive oil, etc. Due to the difference in output, nutritional value and application value of different oils, there are great differences in prices among them. At the same time, due to the drive of commercial interests and the characteristics of edible oil itself, its quality problems are various and very common, such as the phenomenon of shoddy, adulterated, fake, and fake in the market, which seriously damages the interests of consumers. . In order to better protect people's physical and mental health, maintain social stability and good market order, it...

Claims

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Application Information

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IPC IPC(8): G01N30/02
Inventor 陈辉戚建良李玉华汤道权李高生于海波董晶晶郭萌王万玲马晓金张丹丹刘莉杨静蒋宁朱信敏纪建武
Owner 徐州市食品药品检验所
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