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Method for rapidly analyzing ethyl caproate in strong aromatic Chinese spirits by adopting two-channel gas chromatography

A technology of gas chromatography and Luzhou-flavor liquor, applied in the direction of analyzing materials, separating materials, measuring devices, etc., can solve problems such as long time, achieve high accuracy, good reproducibility, and reduce the use of effects

Inactive Publication Date: 2020-04-10
安徽润安信科检测科技有限公司
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  • Application Information

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Problems solved by technology

At present, the quantitative analysis of ethyl hexanoate in liquor mainly adopts single-channel gas chromatography, and the chromatographic column adopts a long column of more than 30m, and the time is relatively long

Method used

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  • Method for rapidly analyzing ethyl caproate in strong aromatic Chinese spirits by adopting two-channel gas chromatography
  • Method for rapidly analyzing ethyl caproate in strong aromatic Chinese spirits by adopting two-channel gas chromatography
  • Method for rapidly analyzing ethyl caproate in strong aromatic Chinese spirits by adopting two-channel gas chromatography

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Embodiment Construction

[0044] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0045] The present embodiment detects ethyl hexanoate in a certain Luzhou-flavor liquor according to the following steps:

[0046] The instrument used is GC7890 (dual channel), the chromatographic column is DB-WAX (20m*0.180mm*0.30μm), pipette, and electronic analytical balance.

[0047] The specific steps are:

[0048] Step 1: Preparation of internal standard

[0049] Get 1 5mL of tert-amyl alcohol (chromatographically pure), claim its quality as M mg on an electronic analytical balance, and settle it in a 200mL volumetric flask with 60% absolute ethanol to obtain the internal standard in the sample to be tested. The concentration is M / 250*1000*0.01mg / L.

[0050] Step 2: Drawing of Ethyl Hexanoate Standard Curve

[0051] Take ethyl hexanoate stock solution to prepare 5 standard working solutions with different mass concentrations, the concent...

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Abstract

The invention discloses a method for rapidly analyzing ethyl caproate in strong aromatic Chinese spirits by adopting two-channel gas chromatography. After an internal standard is added into a spiritssample to be detected, a DB-WAX (20 m*0.180 mm*0.30 [mu]m) is adopted as a separation column, nitrogen is adopted as a carrier gas for flowing, and after the sample is separated by means of chromatographic columns, a hydrogen flame ionization detector is adopted for detection. According to the method, a double-channel detection method is adopted, namely two sample injection towers, two sample injection ports, two identical chromatographic columns and two identical detectors are adopted, and the DB-WAX (20 m*0.180 mm*0.30 [mu]m) chromatographic column is adopted. The method is simple, convenient, short in time and precise and reliable in data.

Description

technical field [0001] The invention relates to a method for quickly analyzing ethyl caproate in Luzhou-flavor liquor by double-channel gas chromatography, and belongs to the technical field of alcohol analysis. Background technique [0002] Luzhou-flavor liquor is a kind of distilled liquor unique to China. It is listed as the world's six famous distilled liquors together with brandy, whiskey, vodka, rum and gin. It is a variety of wines made from koji and distiller's saccharification starter, using starchy (sugar) as raw materials, cooking, saccharifying, fermenting, distilling, aging and blending. The liquor is clear and transparent, with pure texture and no turbidity. The taste is full-bodied, mellow and soft, with strong pungency. It is produced in various regions of China, and products from Sichuan, Guizhou, Jiangsu, Shaanxi, Anhui, Shanxi and other places are the most famous. [0003] The types of aroma components in liquor include: alcohols, esters, acids, aldehyde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/884
Inventor 牛芬荣刘楚楚刘婷婷刘杨王万里丁小亮刘倩倩
Owner 安徽润安信科检测科技有限公司
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