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Method for quickly detecting acraldehyde in Baijiu

A technology for acrolein and liquor, applied in the field of liquor analysis and detection, can solve the problem of high detection limit, and achieve the effects of low detection limit, simple operation and high specificity

Inactive Publication Date: 2017-08-29
ANHUI GUOKE TESTING TECH CO LTD
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  • Abstract
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Problems solved by technology

The disadvantage is that the detection limit is high

Method used

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  • Method for quickly detecting acraldehyde in Baijiu
  • Method for quickly detecting acraldehyde in Baijiu
  • Method for quickly detecting acraldehyde in Baijiu

Examples

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Embodiment 1

[0028] Example 1: Qualitative and quantitative determination of acrolein in finished liquors with different flavors

[0029] (1) Detect acrolein derivatives by gas chromatography-mass spectrometry (GC 6890N-MSD 5975) to determine their characteristic ions and establish the HS-SPME-GC-MS method:

[0030] a. Use ultrapure water boiled and cooled to room temperature to prepare a 1000 mg / L acrolein standard stock solution as the highest concentration, and dilute it to 10 mg / L with ultrapure water as the acrolein standard use solution.

[0031] b. Use HS-SPME-GC-MS to detect acrolein standard solution, headspace solid phase microextraction conditions: the extraction head is a DVB / CAR / PDMS three-phase extraction head, preheated for 10 minutes, the temperature is 65 ℃, and the extraction time is 45 min, extraction temperature was 65 ℃, GC desorption time was 5 min; GC conditions: carrier gas was helium (He, purity 99.9995%), flow rate was 2 mL / min, splitless injection mode; column: F...

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Abstract

The invention discloses and relates to a method for quickly detecting acraldehyde in Baijiu, and belongs to the technical field of analysis and detection of Baijiu. The method comprises the following steps of enabling pentafluoro benzylhydroxylamine and acraldehyde in Baijiu to react to generate oxime; accurately quantifying the acraldehyde in Baijiu by a headspace solid-phase microextraction and gas chromatography mass spectrometry coupling technique. The method is characterized in that d16-octanal labeled by isotope deuterium is used as an internal label, the feature ions of m / z 251 and m / z 243 are used for respectively quantifying the acraldehyde derivative and d16-octanal derivative, and the concentration of the acraldehyde derivative is the concentration of acraldehyde. The method has the advantages that the operation is simple, the detection is sensitive, the automation degree is high, the specificity is high, the detection method can be used for further detecting the acraldehyde in the Baijiu of different years and different flavors, and the safety of Baijiu is better controlled.

Description

technical field [0001] The invention belongs to the technical field of liquor analysis and detection, and in particular relates to a method for rapidly detecting acrolein in liquor. Background technique [0002] Acrolein was identified by the International Agency for Research on Cancer (IARC) as a Group III carcinogen in 1995, that is, a substance that may cause cancer to humans. Acrolein has a toxic effect on living cells and is highly volatile. Inhalation can easily cause symptoms such as eye pain, tearing, headache, cough, dizziness, and dyspnea. It will damage the respiratory mucosa and endanger lung health. The World Health Organization (WHO) stipulates that the daily intake of acrolein per person is 7.5 μg / kg. Acrolein is easily soluble in various organic solvents such as water, alcohol, and acetone, and has been detected in beer, wine, fruit distilled liquor, tequila, skin brandy, and whiskey abroad. The increase in the production of liquor and the increasing attent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/062
Inventor 邵栋梁朱梦旭
Owner ANHUI GUOKE TESTING TECH CO LTD
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