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Method for simultaneously detecting content of five limited components in food additives

A food additive and content technology, applied in the field of chemical analysis, can solve the problems of high analysis cost, complicated operation process, time-consuming, etc., and achieve the effect of simple measurement method, saving time, improving versatility and scalability

Active Publication Date: 2016-04-20
CHINA TOBACCO YUNNAN IND
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the problems of complex operation process, time-consuming, high analysis cost, etc., the present invention provides a method for simultaneously detecting the content of five prohibited and restricted ingredients in food additives, so as to simultaneously detect β-naphthol, sesamol, imidazole, The content of β-asarone and xylene musk improves the versatility and scalability of detection and analysis methods in this field

Method used

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  • Method for simultaneously detecting content of five limited components in food additives
  • Method for simultaneously detecting content of five limited components in food additives
  • Method for simultaneously detecting content of five limited components in food additives

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Embodiment 1

[0023] Instruments and reagents:

[0024] Bruker SCIONTQ triple quadrupole GC-MS (brukerSCIONTQGC-MS / MS) (Bruker, Germany; elastic capillary polyethylene glycol column (30cm×0.25mm×0.25μm) (Agilent, USA); vibramax100 oscillator (Germany Heidolph company); P300H ultrasonic cleaner (Elma company, Germany); XP504 analytical balance (MettleerToledo company, Switzerland); BIOFUGESTRATOS all-round high-speed refrigerated centrifuge (Heraeus company, Germany)

[0025] Phenylethyl propionate (internal standard, purity ≥ 98%, Dr. Ehrenstorfer, Germany); β-naphthol (purity > 99.0%, TCI, Japan); β-asarone (purity = 70%, Dr. Ehrenstorfer, Germany) Ehrenstorfer company); xylene musk (purity ≥99%, Germany Dr.Ehrenstorfer company); imidazole (purity ≥99%, Germany Dr.Ehrenstorfer company); sesamol (purity ≥98%, Japan TCI company); anhydrous sulfuric acid Sodium (analytical pure, Xilong Chemical Co., Ltd.)

[0026] The detection of the food additive sample to be tested is as follows:

[002...

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Abstract

The invention discloses a method for simultaneously detecting the content of five limited components in food additives. The method includes the steps that to-be-detected food additive samples are weighed, an absolute ethyl alcohol solution and an internal standard solution are added, and the mixture is oscillated to be subjected to ultrasonic extraction; supernatant liquid is taken, anhydrous sodium sulfate is added, supernatant liquid is taken to be filtered through an organic membrane, analysis is carried out with the gas chromatography-mass spectrometry method to obtain the quantitative ion peak areas of the five components in the supernatant liquid, and a five-grade mixing standard series work solution is prepared; analysis is carried out through the gas chromatography-mass spectrometry method, the quantitative ion peak areas serve as vertical coordinates, the content of unit areas serve as transverse coordinates, working curves pass through an original point in a forced mode, and the standard curves of the five components are obtained; according to the standard curves, the obtained quantitative ion peak areas of the five components in the supernatant liquid are substituted into the standard curves for calculation, and the content of the five components in the supernatant liquid is obtained. The method is simple, convenient and accurate, the content of the five components in the food additives can be simultaneously detected, and the universality and the extendibility of the detecting and analyzing method in the field are improved.

Description

technical field [0001] The invention relates to a method for simultaneously detecting the contents of five prohibited and restricted ingredients in food additives, belonging to the technical field of chemical analysis. Background technique [0002] With the improvement of living standards, people no longer just pursue the feeling of satiety brought by food, but pay more attention to the sensory stimulation brought by the color and fragrance of food, so food additives have been widely used. Food additives are directly added to food. Therefore, food safety is highly concerned today, and the safety of food additives is also of great concern. The Ministry of Health has very clear regulations on the ingredients in food additives, among which β-naphthol, sesamol and imidazole are explicitly prohibited from being used as food additives, while β-asarone and musk xylene can be used as food additives, but due to It is highly toxic and should not be used in excess. Therefore, it is n...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06G01N30/30
CPCG01N30/02G01N30/06G01N30/30
Inventor 黄海涛李雪梅徐济仓高茜朱洲海曾婉俐耿永勤陈建华李晶
Owner CHINA TOBACCO YUNNAN IND
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