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Identification method of nitrogen-containing compound in purple grape brandy cocktail

A nitrogen compound and identification method technology, applied in the field of analysis and detection, can solve the problems of inaccurate composition and concentration of nitrogen-containing compounds, and achieve the effect of meeting the needs of rapid detection in production, wide applicability, and simple operation

Inactive Publication Date: 2016-12-21
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a method for identifying nitrogen-containing compounds in a purple grape brandy cocktail. Technical issues with inaccurate composition and concentration

Method used

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  • Identification method of nitrogen-containing compound in purple grape brandy cocktail
  • Identification method of nitrogen-containing compound in purple grape brandy cocktail

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Experimental program
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Embodiment 1

[0019] This method mainly uses headspace solid-phase microextraction combined with gas chromatography-nitrogen and phosphorus detector-mass spectrometry to quickly detect and qualitatively quantify nitrogen-containing compounds in purple grape brandy cocktails. The specific steps are as follows:

[0020] 1) Extraction of nitrogen-containing compounds in purple grape brandy cocktail: first prepare the purple grape brandy cocktail wine sample, first dilute it with deionized water to a solution system with an alcohol content of 3%, then take 5mL of the wine sample, add 20 μL 2-methoxy- 3-Methylpyrazine was placed in a 20mL headspace vial, which was sealed with a silicone gasket. The SPME conditions were: insert the extraction head into the headspace vial, and place the extraction head 2cm above the sample, and the temperature of the constant temperature water bath was 50 Extract at ℃ for 45 minutes; after the extraction is completed, quickly insert the extraction head into the gas...

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Abstract

The invention provides an identification method of a nitrogen-containing compound in purple grape brandy cocktail. The identification method of the nitrogen-containing compound in the purple grape brandy cocktail belongs to the technical field of analysis and detection, and comprises the steps of extracting the nitrogen-containing compound in the purple grape brandy cocktail; utilizing a gas chromatography-nitrogen-phosphorus detector-liquid chromatography-mass spectrometry to detect and analyze the obtained nitrogen-containing compound in the purple grape brandy cocktail, and carrying out qualitative and quantitative analysis on the nitrogen-containing compound in the purple grape brandy cocktail. The invention adopts headspace solid-phase microextraction combined with the gas chromatography-nitrogen-phosphorus detector-liquid chromatography-mass spectrometry to analyze the nitrogen-containing compound in the purple grape brandy cocktail, and forms the qualitative and quantitative analysis method of the nitrogen-containing compound in the purple grape brandy cocktail, and the method is simple and easy to operate, and wide in applicability.

Description

technical field [0001] The invention belongs to the technical field of analysis and detection, and in particular relates to a method for analyzing nitrogenous compounds in wine, in particular to a method for detecting nitrogenous compounds in purple grape brandy cocktails. Background technique [0002] At present, the variety of cocktails is rich and colorful, and has reached the stage of market segmentation: there are different alcohol concentrations, different fruit juice concentrations, suitable for catering, suitable for women's beauty and beauty, and seasonal fruit flavors according to different seasons. Consumer favorite. [0003] Nitrogenous compounds in purple grape brandy cocktails, like other substances, are important factors in the formation of purple grape brandy cocktails, and determine the flavor and typicality of purple grape brandy cocktails. At present, the research on nitrogen-containing compounds in purple grape brandy cocktails is still in its infancy at...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/062
Inventor 肖作兵郦琪牛云蔚朱建才
Owner SHANGHAI INST OF TECH