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Detection method of dioxane in fermented alcohol

A technology for fermenting alcohol and detection method, which is applied in the directions of measuring devices, instruments, scientific instruments, etc., can solve problems such as rapid control of alcohol quality, no measurement standards, etc., and achieve the effects of easy operation and accurate and simple detection methods.

Inactive Publication Date: 2015-11-11
太仓意发石化矿材检测有限公司
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  • Abstract
  • Description
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Problems solved by technology

It is not conducive to the rapid control of alcohol quality in the production process
Isopropanol, benzene residual content, and dioxane determination have no corresponding determination standards at home and abroad

Method used

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  • Detection method of dioxane in fermented alcohol
  • Detection method of dioxane in fermented alcohol
  • Detection method of dioxane in fermented alcohol

Examples

Experimental program
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Embodiment 1

[0023] A method for detecting dioxane in fermented alcohol, comprising the following steps:

[0024] 1) Preparation of standard solution: Accurately weigh 0.100g of dioxane, dilute to a 100ml volumetric flask with analytical pure methanol, shake well, and dilute with this solution to 1000μg / L, 200μg / L, 100μg / L, 50μg / L L, 20μg / L, 10μg / L solution for standby;

[0025] 2) Selection of chromatographic column: test different polarity stationary liquids, test and compare three chromatographic columns DB-1, 30m INNOWax, 60m INNOWax, and the split ratios are 50:1, 20:1, 10:1 respectively , 5:1 and splitless for detection and comparison to determine the type of chromatographic column used and whether to split;

[0026] 3) Detection by capillary gas chromatography: select 60m INNOWax and use the split flow detection method to detect the content of dioxane in fermented alcohol.

[0027] In step 2), the model of chromatographic column DB-1 is 30m×0.32mm×1.0μm, the model of 30m chromatog...

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Abstract

The invention discloses a detection method of dioxane in fermented alcohol, which includes the following steps: 1) preparing a standard solution; 2) selecting a chromatographic column; and 3) performing capillary gas chromatographic method detection. The detection method is accurate and simple and is easy to carry out. A measured value of the detection method is always higher than a theoretical value so that the detection method is high in recycle rate but can satisfy internal control requirement in alcohol production.

Description

technical field [0001] The invention relates to the field of fermented alcohol detection, in particular to a method for detecting dioxane in fermented alcohol. Background technique [0002] In the process of alcoholic fermentation, the main products are alcohol and carbon dioxide, accompanied by a variety of fermentation by-products, which can be divided into alcohols (methanol, propanol, fusel oil), aldehydes (acetaldehyde, crotonaldehyde, ), acids (acetic acid, butyric acid), and esters (methyl acetate, ethyl acetate). Most of these by-products are related to the raw materials used, yeast strains and nutrients, and are produced during the fermentation process; there are also a few such as esters and acetals that are produced by chemical changes during the distillation process, and their content affects the quality of the alcohol. The flavor of the finished product (such as sweetness , aromatic smell, etc.), is also the basis for distinguishing different specifications of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
Inventor 曹喜焕宋昌盛
Owner 太仓意发石化矿材检测有限公司
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