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Ultrahigh performance liquid chromatography-quadrupole electrostatic field orbit ion trap mass spectrometry screening method of pigment in wine

An ultra-high performance liquid phase and ion trap mass spectrometer technology, which is applied in the field of food safety testing, can solve the problems of high cost of materials and equipment, complicated pretreatment operations, etc., and achieve accurate qualitative and quantitative results, fast positive and negative switching scanning modes, The effect of increasing analytical throughput

Inactive Publication Date: 2017-03-08
SHAANXI UNIV OF SCI & TECH
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Problems solved by technology

[0005] However, currently there are few high-throughput and rapid detection methods for exogenous substances in wine, the pre-treatment operations are complicated, and the cost of materials and equipment is high, which is limited to the rapid detection of several or one type of compounds

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  • Ultrahigh performance liquid chromatography-quadrupole electrostatic field orbit ion trap mass spectrometry screening method of pigment in wine
  • Ultrahigh performance liquid chromatography-quadrupole electrostatic field orbit ion trap mass spectrometry screening method of pigment in wine
  • Ultrahigh performance liquid chromatography-quadrupole electrostatic field orbit ion trap mass spectrometry screening method of pigment in wine

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Embodiment Construction

[0036] The invention provides an ultra-high performance liquid chromatography-quadrupole electrostatic field orbit ion trap mass spectrometry screening method for pigments in wine, which is characterized in that: the equipment used in the method includes ultra-high performance liquid chromatography-quadrupole electrostatic field Field Orbit Ion Trap Mass Spectrometer. Include the following steps:

[0037] First, wine samples were extracted and purified using an optimized QuEChERS method;

[0038] Secondly, ultra-high performance liquid chromatography-quadrupole electrostatic field orbit ion trap mass spectrometry (Q-Orbitrap) was used for screening, using electrospray ionization source (ESI) and full scan / data dependent acquisition (Full MS / dd-MS 2), full scan / variable data-independent acquisition (Full MS / vDIA), full scan / full ion fragmentation acquisition (Full MS / AIF) three scan modes to obtain complete primary and secondary mass spectra.

[0039] Thirdly, Exact Finder 2....

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Abstract

The invention discloses an ultrahigh performance liquid chromatography-quadrupole electrostatic field orbit ion trap mass spectrometry screening method of pigment in wine and belongs to the technical field of food safety detection. The method includes: applying ultrahigh performance liquid chromatography-quadrupole electrostatic field orbit ion trap mass spectrometry (Q-Orbitrap) for screening, and adopting electric spraying ion source and full-scanning / data dependence collection, full-scanning / variable data independence collection and full-scanning / full ion breaking collection scanning modes to acquire complete primary and secondary spectra; applying Exact Finder 2.5 software to process the acquired primary and secondary spectra, and extracting chemical information; comparing information in a built spectrum bank with information of a detected object screening result to confirm composition of the pigment in the wine. A mass spectrometer used in the method mainly has the advantages of high resolution, accurate qualitative and quantitative results, high sensitivityy and high mass accuracy and can be applied to analysis of complex matrixes. The method can also be applied in screening pigment in other food and has good application prospect in the field of food.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of food safety detection, in particular to an ultra-high performance liquid chromatography-quadrupole electrostatic field orbital ion trap mass spectrometry screening method for pigments in wine. [0003] 【Background technique】 [0004] Wine has the effect of beautifying and beautifying the skin. The antioxidant substances it contains can help strengthen the body's metabolism, and can also help whiten the skin and effectively exfoliate, so it is loved by people. With the improvement of living standards, people pay more and more attention to the safety of wine. Pigment is an important component in wine, and its presence is an important reason why wine has an attractive sensory. Pigments are divided into natural pigments and synthetic pigments. Synthetic pigments are widely used as food additives to compensate for the loss of food appearance during storage. In recent years, more and more data show th...

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Application Information

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IPC IPC(8): G01N30/88G01N30/06G01N30/86
CPCG01N30/88G01N30/06G01N30/8696
Inventor 贾玮
Owner SHAANXI UNIV OF SCI & TECH
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