What is the gas that puts the fizz into fizzy drinks
Carbonated drink Carbonated drink Carbonated drinks are beverages that contain dissolved carbon dioxide. The dissolution of CO in a liquid, gives rise to "fizz" or "effervescence". The process usually involves carbon dioxide under high pressure. When the pressure is removed, the carbon dioxide is released from the solution as small bubbles, which causes the solution to become effervescent, or fizzy. A common example is the dissolving of carbon dioxide in water, resulting in carbonated water. Carbon dioxide is only weakly soluble in water, therefore it separates into a gas when the pressure is released. Carbonated beverages are prepared by mixing flavored syrup
Fizzy extraction Fizzy extraction Fizzy extraction is an extraction technique developed by Paweł Urban's group for analysis of semivolatile species dissolved in liquid matrices. It is used to extract semivolatile compounds from liquid samples. Unlike in sparging methods, such as "purge-closed loop", effervescence plays the key role in fizzy extraction. A liquid sample is subjected to a small overpressure (ca. 150 kPa) of a carrier gas (e.g. CO) under stirring. An abrupt decompression of the extraction chamber leads to effervescence. The resulting bubbles with volatiles/semivolatiles are liberated into the headspace of the extraction chamber within few seconds, and transferred to an online