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Why is litchi detected? What about driving after eating litchi

4hw.com.cn: summer is the season for eating litchi. Many people like it very much. But recently, there is a rumor that after eating litchi, they are found to be drunk driving. Why can alcohol be detected after eating litchi? Let's have a look.

It's true or false to drive with litchi wine

It's possible, so it's not advisable to drive right after eating litchi.

If you eat litchi and drive immediately, and then be stopped by the traffic police for alcohol test, it is likely to check the alcohol content. Therefore, it is generally recommended not to eat litchi before driving, or take a rest after eating litchi and then drive, so as to avoid the trouble of alcohol driving.

Why can alcohol be detected after eating litchi

Litchi is a kind of fruit with high sugar content. When the mature litchi fruit is removed from the tree, it will no longer participate in photosynthesis. The cells inside the litchi fruit will start to lack oxygen and increase the speed of cell anaerobic respiration. During the process of litchi anaerobic respiration, the sugar will ferment out ethanol. After human consumption, it is easy to detect that the alcohol exceeds the standard.

Eating litchi can't detect alcohol

differ from man to man.

Everyone's physical fitness is not the same, and the test results are not the same. Some people will have a strong reaction after eating litchi, some people will not; moreover, this has a great relationship with the maturity of litchi. Generally speaking, the higher the maturity of litchi, the greater the alcohol content of the test.

How to drive after eating litchi

Cooperate with the test after the explanation is clear.

If you drive after eating litchi, you can explain it to the traffic police when checking the drunk driving, take a few minutes off, wash your mouth with water, and then carry out the test again. If the result is not very accurate, you can carry out the blood test, and the real or fake drunk driving will come out.

Did you eat litchi after drinking and driving

It can be detected.

There are two levels of alcohol driving test, one is breath test, the other is blood test. After eating litchi, the alcohol content can't be detected after ten minutes, but alcohol driving is different. It takes a long time to detect. Moreover, breath test is off and there is blood test!

So the editor will introduce a variety of alcohol testing methods for you!

Alcohol test

Determination of potassium permanganate

This method should be seen in high school textbooks, presumably not unfamiliar. According to the principle that the color of purple potassium permanganate solution will become lighter after reacting with alcohol, the higher the alcohol concentration is, the lighter the color of the solution will be.

With the development of science and technology, this detection method was replaced by the gas alcohol detector invented by Dr. Robert borkenstein in 1954.

Gas alcohol detector

The principle of the gas alcohol detector is to identify the alcohol concentration through the reaction of potassium dichromate and alcohol, in which the conversion degree of chromium ion represents the alcohol concentration.

Infrared alcohol detector

An infrared beam is emitted from one end of the air inlet. If alcohol is contained in the gas, some wavelengths in the beam will be absorbed by alcohol, so as to detect the concentration of alcohol in the gas.

This type of detector has the advantages of good stability and strong anti-interference ability.

Fuel cell alcohol detector

In the process of alcohol catalysis, the chemical energy is released. The energy converter converts the chemical energy into current. The current flows through the voltmeter. The higher the value, the stronger the alcohol concentration.

However, this type of detector has an obvious disadvantage: the same alcohol substances may also be detected, which leads to the deviation of the specificity and accuracy of the detection.

Semiconductor alcohol detector

Taking the resistance value of semiconductor materials with high sensitivity to some gases as the detection index, when the concentration of the sensitive gas increases, the resistance value of the semiconductor contacting the gas will decrease, so as to detect the alcohol concentration in the gas.

This type of detector has a fatal disadvantage: weak anti-interference ability, can affect the test results through smoking and other means, and therefore does not meet the standards formulated by the Ministry of public security. Its results can not be used as the basis for law enforcement, and in most cases can only be used for self inspection.

Although the reaction processes of the above detection methods are different, the substances detected are all the same - ethanol in the gas.