Detection method of content of 3-chlorine-1,2-propylene glycol in wine products

A detection method and propylene glycol technology, applied in the field of analysis and detection, can solve the problems of low accuracy of detection results, inability to fully refer to, and large interference effects, and achieve the effects of high speed, low detection cost, and less interference

Inactive Publication Date: 2019-08-27
JING BRAND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the 3-chloro-1,2-propanediol in wine products is extracted, the ethanol in the wine has a great influence on the interference of the extraction, resulting in low accuracy of the test results, so it is not possible to fully refer to the currently published food 3 - Detection method of chloro-1,2-propanediol

Method used

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  • Detection method of content of 3-chlorine-1,2-propylene glycol in wine products
  • Detection method of content of 3-chlorine-1,2-propylene glycol in wine products
  • Detection method of content of 3-chlorine-1,2-propylene glycol in wine products

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Experimental program
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Embodiment 1

[0018] In this embodiment, liquor samples and healthcare wine samples are taken as examples. The detection method for the content of 3-chloro-1,2-propanediol in a wine product of this embodiment includes the following steps:

[0019] Accurately measure 10 mL each of the liquor sample to be tested and the health wine sample and place them in 100 mL eggplant-shaped bottles, and add D with a concentration of 12.21 mg / L 5 -3-Chloro-1,2-propanediol standard working solution 20µL, rotary evaporated in a water bath at 40°C until the volume of the wine sample was 5.4mL, added 4g of 20% sodium chloride solution (m / V), and ultrasonically mixed for 5min to obtain Extract solution: Weigh 6g of diatomite, add extract solution, mix the two and place it for 10min to obtain treatment solution; take another 5g diatomite and put it into a chromatography column, fill a small amount of glass wool at the lower end of the chromatography column, and put Put the treatment solution into the chromatogr...

Embodiment 2

[0031] In order to verify the reliability of the results, the liquor sample in Example 1 was spiked and then the repeatability test was carried out; the health wine sample in Example 1 was tested for accuracy.

[0032] ① Repeatability experiment: 3-chloro-1,2-propanediol solutions with concentrations of 4.77µg / L, 19.08µg / L, and 47.70µg / L were respectively selected as the test solution for the precision test, and 20µL of 12.21mg / L of D 5 -3-Chloro-1,2-propanediol standard working solution, transfer the above-mentioned solutions of different concentrations into transparent glass bottles with good airtightness and stoppers, and perform derivatization according to the method in step (2) in Example 1, The derivative solution was tested according to the instrument conditions in step (3) of Example 1 to investigate the precision. The test data are shown in Table 2.

[0033] Table 2 3-Chloro-1,2-propanediol content determination precision test data

[0034]

[0035] It can be se...

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Abstract

The invention discloses a detection method of the content of 3-chlorine-1,2-propylene glycol in wine products. The method comprises the following steps: adding internal standard into a sample, takingdiatomite as an adsorbent, carrying out solid-phase support liquid-liquid extraction, eluting by using a normal hexane-absolute ethyl ether solution (9+1), removing non-polar lipid components, eluting3-chlorine-1,2-propylene glycol by using absolute ethyl ether and taking the obtained solution as a sample solution; taking ethyl acetate as a solvent for preparing a 3-chlorine-1,2-propylene glycolstandard solution, taking heptafluorobutyrylimidazole as a derivatization reagent, setting analysis condition of a gas chromatograph-mass spectrometer, respectively feeding the sample by using a sample solution and a standard solution, calculating the content of 3-chlorine-1,2-propylene glycol in the sample solution by using an internal standard method according to testing results. The method is simple, is low in detection cost, rapid in speed, low in interference of detection process, high in result repeatability and high in accuracy, and is mainly used for detecting the content of 3-chlorine-1,2-propylene glycol in the wine products.

Description

technical field [0001] The invention relates to the technical field of analysis and detection, in particular to a method for detecting the content of 3-chloro-1,2-propanediol in wine products. Background technique [0002] 3-Chloro-1,2-propanediol is flammable, highly toxic, and a suspected carcinogen. It is mainly used as a solvent for cellulose acetate, and is also used in the preparation of plasticizers, surfactants, dye intermediates, and drugs. Toxic by inhalation, ingestion or absorption through the skin, affecting the lungs, liver, kidneys and brain. Inhalation of steam can produce symptoms such as nausea, headache, dizziness, and coma. Inhalation of steam can cause pulmonary edema, and severe cases can be fatal. It has been detected in many foods. [0003] At present, the national standard "GB 5009.191-2016" gives the detection method of 3-chloro-1,2-propanediol in food; Gu Xiaofeng et al. etc. "Determination of 3-chloro-1,2-propanediol in soy sauce by gas chromato...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/72
CPCG01N30/02G01N30/06G01N30/72G01N2030/062G01N2030/067
Inventor 孙细珍韩娇张帆黄盼杜佳炜曹倩雯
Owner JING BRAND
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