英语词汇“time-of-flight mass analyser”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	time-of-flight mass analyser
释义	time-of-flight mass analyser time-of-flight mass analyser A mass analyser used in mass spectrometry that measures ion mass by determining the flight time of ions having the same kinetic energy over a fixed distance. Ions are formed in the same place at the same time, and given the same energy by an acceleration voltage as they pass into a flight tube. The TOF/MS acts as a “racetrack” for ions: lower mass ions move at higher speed; higher mass ions move at lower speed. Determination of the time of arrival of ions after the start signal serves to differentiate ion masses.
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