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This instrument is simple in design, easy to operate, and requires minimal sample volume. It offers high accuracy, durability, and fast measurement speed, with built-in temperature control to ensure results at 20°C. It is widely used in scientific research, food industry, and alcohol production.
Refractive Index Table for Ethanol:
Source: http://news.chinawj.com.cn
Editor: Hardware Business Network Information Center
Conducive to rapid measurement of refractive index to identify ethanol concentration
An alcohol concentration meter, also known as an alcohol meter, ethanol concentration meter, or alcohol tester, is a precision optical device used to measure the percentage of alcohol in aqueous solutions such as liquor and industrial alcohol. It is user-friendly, cost-effective, and provides quick results. To use it, simply place a few drops of the liquid on the prism and observe the light through the eyepiece to determine the concentration. Some models even include temperature compensation for more accurate readings.
Liquor is a popular beverage worldwide, but in recent years, some unscrupulous individuals in certain regions of China have been mixing industrial ethanol with water and other substances to mimic the appearance and taste of genuine liquor. In some cases, they even use substances similar to ethanol that are cheaper and harder to distinguish. These counterfeit products can cause serious health issues, including vision loss, blindness, and even death in severe cases. This has led to significant harm to public health and property, making the need for rapid and reliable identification of ethanol and methanol increasingly important.
Key words: refractive index, ethanol, liquor, rapid identification, quality control
China has established several national standards for alcohol content, such as GB/T 394.1-94 "Industrial Ethanol," GB 6820-92 "Industrial Synthetic Ethanol," GB 10343-89 "Edible Alcohol," and GB 298-92 "Industrial Methanol." These standards specify both ethanol and methanol content, along with measurement methods. However, testing for methanol typically requires specialized equipment and reagents, which can be time-consuming. As a result, many users rely only on alcohol meters to measure ethanol content. While the densities of ethanol (0.789–0.791 g/ml) and methanol (0.791–0.793 g/ml) are very close, their refractive indices differ significantly. The ATAGO alcohol meter uses this principle to quickly and accurately identify ethanol.
The Ethanol Refractometer (Liquor Series) is one of the most intuitive instruments for measuring ethanol concentration in aqueous solutions. It allows for fast determination of the alcohol percentage in solutions like wine and spirits. This model can also measure the sugar content of grape juice, helping to monitor the ripening process and improve wine quality. Its versatility makes it essential for scientific research, food production, and alcohol quality control.
An alcohol concentration meter, also known as an alcohol meter or ethanol tester, is a precise optical instrument designed to measure the alcohol content in various liquid solutions. It is easy to use, affordable, and delivers accurate results. Simply apply a few drops of the sample onto the prism and read the value by looking through the eyepiece. Some advanced models feature automatic temperature compensation (ATC), ensuring more consistent measurements. The PET-109 model is particularly versatile, capable of measuring alcohol concentrations from 0% to 45%.