Rapid detection kit and detection method for cyanide in Chinese liquor

A technology for detection kits and detection methods, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by causing materials to undergo chemical reactions, and can solve the problems of long detection period, low detection efficiency, and cyanide detection methods. cumbersome and other problems, to achieve the effect of reducing the cost of detection, reducing the cost of detection, and low cost

Inactive Publication Date: 2016-05-25
SHANDONG INST FOR FOOD & DRUG CONTROL
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  • Application Information

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Problems solved by technology

[0005] In order to solve the above problems of cumbersome detection method, long detection cycle and low detection efficiency of cyanide in liquor, this application provides a method for detection of large quantities of liquor samples, which greatly improves the detection efficiency of cyanide in liquor and reduces the Rapid detection kit for cyanide in liquor and the detection cost of the inspection agency

Method used

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  • Rapid detection kit and detection method for cyanide in Chinese liquor
  • Rapid detection kit and detection method for cyanide in Chinese liquor
  • Rapid detection kit and detection method for cyanide in Chinese liquor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take 20.0mL wine sample into a graduated glass tube, add 1 packet of tartaric acid, plug the stopper with picric acid test paper moistened with sodium carbonate, put the glass tube in a 45°C water bath, heat for 30min, and observe the color change of the test paper . If the test paper does not change color, it means that the cyanide is a negative reaction or does not exceed the specification; if the test paper turns orange or red, it means that the wine sample contains a certain amount of cyanide, and it is judged as a positive sample. The darker the color, the higher the cyanide content .

Embodiment 2

[0038] The mensuration of embodiment 2 detection limits

[0039] Take a negative sample of liquor with an alcohol content of 36% vol, and conduct a standard solution addition experiment. The amount of standard solution added and the experimental results are shown in Table 1.

[0040] Table 1 Standard series addition experiment results

[0041]

[0042] According to the experimental results in Table 1, use the picric acid test paper used in the modified method to detect the cyanide content in liquor, and when the cyanide addition is 0.06 mg / L, an obvious color change of the test paper can be observed. Therefore, the detection of this experiment is limited to 0.06mg / L, and the color of the test paper is also gradually deepening with the increase of the cyanide content. The detection limit of the optimized quantitative determination method of GB / T5009.48 is 0.05mg / L, and the detection limit of the present invention is 0.06mg / L, which is equivalent, but the method of the prese...

Embodiment 3

[0043] Embodiment 3: Detection accuracy verification

[0044] 50 batches of samples of Luzhou-flavored liquor, Maotai-flavored liquor, sesame-flavored liquor, and Fen-flavored liquor were tested, and a total of 10 batches of positive samples were detected. At the same time, the quantitative determination method of GB / T5009.48 was used for comparative experiments. The batches of positive samples are the same, and no false positive or false negative phenomenon is found in the detection method of the present invention;

[0045] Table 2 positive data control result table

[0046]

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Abstract

The invention relates to the technical field of detection of cyanide in Chinese liquor, in particular to a rapid detection kit for cyanide in Chinese liquor. The rapid detection kit comprises tartaric acid, picric acid test strip, sodium carbonate, and a glass tube. The detection method includes: taking a liquor sample and putting it in the scale equipped glass tube, adding tartaric acid, conducting plugging with a plug loaded with the sodium carbonate wetted picric acid test strip, putting the glass tube in 45DEG C water bath, performing heating for 30min, and observing the test strip color change. The detection limit of the method provided by the invention is 0.06mg / L. The method is simple and fast, and the whole operation time is 30min. The kit and the method can screen cyanide in mass Chinese liquor, greatly improve the detection efficiency of cyanide in Chinese liquor, lower the detection cost of Chinese liquor enterprises and inspection agencies, and have very important significance in actual inspection work.

Description

technical field [0001] The invention relates to the technical field of detection of cyanide in liquor, in particular to a rapid detection kit for cyanide in liquor and a detection method using the kit. Background technique [0002] Cyanide refers specifically to compounds with a cyano group (CN). Those that release hydrogen cyanide or cyanide ions after heating or reacting with acid have the same highly toxic effect as hydrogen cyanide. In plants, cyanide is usually combined with sugar molecules and exists in the form of cyanogenic glycosides. For example, cassava and fruit cores usually contain cyanide or cyanogenic glycosides. [0003] Cyanide in wine mainly comes from the hydrolysis of cyanogenic glycosides contained in raw materials (such as cassava, substitutes, beans and other fruit stones or mixed with some wild plants) during the fermentation process (such as HCN, etc.). Therefore, Cyanide is a very important safety indicator of alcohol. [0004] The detection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 车明秀胡明燕王骏刘睿毕会芳任雪梅
Owner SHANDONG INST FOR FOOD & DRUG CONTROL
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