酒精中甲醇含量检测方法

Determination of Methanol Content in Alcohol

酒精是酒的主要成分,也是酿酒的重要原料,甲醇含量的多少已经成为衡量白酒质量的一个重要标准。这是因为现在很多白酒都是直接用甲醇或者串香等材料配制而成的。国家对食用酒精中的甲醇含量有明确规定,即每100 m L中的酒精含量不能超过0.06 g,否则就会危害人体健康。因为甲醇本身具有一定的毒性,长期饮用不符合标准的白酒容易使甲醇在体内积累,超过一定的程度之后就会出现积蓄性中毒现象。而且甲醇经过人体的新陈代谢会生成甲酸和甲醛。甲醛能够对视网膜中的氧化磷酸化作用进行破坏,导致失明。

Alcohol is the main ingredient of wine, but also an important raw material for brewing, the amount of methanol has become an important measure of the quality of liquor. This is because a lot of liquor is now directly with methanol or chuanxiang and other materials from the preparation. The state of edible alcohol in the methanol content is clearly defined, that every 100 ml of alcohol content can not exceed 0.06 grams, otherwise it will endanger human health. Because methanol itself has a certain toxicity, long-term drinking does not meet the standard of alcohol is easy to make methanol accumulation in the body, more than a certain degree after the accumulation of poisoning phenomenon. And methanol through the body's metabolism will produce formic acid and formaldehyde. Formaldehyde can destroy the oxidative phosphorylation in the retina, leading to blindness.