Method for identifying nitrogen-containing compound in kaoliang spirit

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 effects of meeting the needs of rapid detection, simple operation and wide applicability

Inactive Publication Date: 2016-10-12
SHANGHAI INST OF TECH
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Problems solved by technology

[0003] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a method for identifying nitrogenous compounds in Kinmen sorghum liquor. The method described will solve the problem of determining the composition and composition of nitrogenous compounds in sorghum liquor in the prior art. Technical problems with inaccurate concentrations

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  • Method for identifying nitrogen-containing compound in kaoliang spirit

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Embodiment Construction

[0017] In order to further illustrate the method of rapid detection and qualitative quantification of nitrogen-containing compounds in sorghum liquor by using headspace solid-phase microextraction combined with gas chromatography-nitrogen and phosphorus detector-mass spectrometry, the following examples are used for a more detailed description.

[0018] 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 sorghum wine. The specific steps are as follows:

[0019] 1) Extraction of nitrogen-containing compounds in sorghum wine: first prepare a sorghum wine sample, first dilute it with deionized water to a solution system with an alcohol content of 10%, then take 5mL of the wine sample, add 1g sodium chloride, 20 μL 2-methoxy The base-3-methylpyrazine was placed in a 20mL headspace vial, which was sealed with a si...

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Abstract

The invention provides a method for identifying a nitrogen-containing compound in kaoliang spirit, and belongs to the technical field of analysis and detection. The method comprises the following steps: extracting the nitrogen-containing compound in the kaoliang spirit; detecting and analyzing the obtained nitrogen-containing compound in the kaoliang spirit by using a gas chromatography-nitrogen phosphorus detector-mass spectrometry coupled technology; qualitatively and quantitatively analyzing the nitrogen-containing compound. The nitrogen-containing compound in a kaoliang spirit sample is analyzed by headspace solid-phase microextraction and the gas chromatography-nitrogen phosphorus detector-mass spectrometry coupled technology, and the qualitative and quantitative analysis method for the nitrogen-containing compound in the kaoliang spirit is formed. The method is simple to operate, feasible, 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 liquor, in particular to a method for detecting nitrogenous compounds in sorghum liquor. Background technique [0002] Nitrogen-containing compounds in sorghum liquor, like other substances, are an important factor in the composition of sorghum liquor, which determines the flavor and typicality of sorghum liquor. Researchers at home and abroad have identified many substances that determine the flavor of sorghum wine by qualitative and quantitative methods. Although the content of nitrogen compounds in sorghum wine is very small, the flavor threshold of these compounds is low, and they have pleasant flavors such as nutty and roasted aromas, and they have obvious foil and superimposed effects on other aroma substances. They are an important type of flavor in sorghum wine. However, the research on nitrogen-c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88G01N30/06
CPCG01N30/88G01N30/06
Inventor 牛云蔚姚征民肖作兵马宁
Owner SHANGHAI INST OF TECH
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