EMILY KWONG, HOST: Hey, everybody. Emily Kwong here. Today we re going back to school, where we revisit something you may have learned in science class and go a bit deeper with it. Joining me in this is science correspondent Geoff Brumfiel.
GEOFF BRUMFIEL, BYLINE: And today, Emily, I ve got a good one for you. It s one of the most mysterious forces in the world, but you can find it on your fridge. I m talking about magnets and magnetism, which is a fundamental force of nature. It can feel a little bit like magic.
KWONG: Yeah.
BRUMFIEL: But how it works is really interesting. And I m going to tell you something else. We all should know how magnets work, Emily, because magnets matter.
Magnets: The Hidden Objects Powering Your Life : Short Wave npr.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from npr.org Daily Mail and Mail on Sunday newspapers.
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IMAGE: Skoltech scientists pin hopes on a new ion trap to create the world s most accurate mass spectrometer view more
Credit: Evgeny Nikolaev and Anton Lioznov/Skoltech
Mass spectrometers are widely used to analyze highly complex chemical and biological mixtures. Skoltech scientists have developed a new version of a mass spectrometer that uses rotation frequencies of ionized molecules in strong magnetic fields to measure masses with higher accuracy (FT ICR). The team has designed an ion trap that ensures the utmost resolving power in ultra-strong magnetic fields. The research was published in the journal
Analytical Chemistry.
The ion trap is shaped like a cylinder made up of electrodes, with electric and magnetic fields generated inside. The exact masses of the test sample s ions can be determined from their rotation frequencies. The electrodes must create a harmonized field of a particular shape such that the ions rotate predictably. A trap with such a fie
Skoltech Scientists Pin Hopes on a New Ion Trap to Create the World’s Most Accurate Mass Spectrometer
Written by AZoOpticsJan 27 2021
Mass spectrometers are widely used to analyze highly complex chemical and biological mixtures. Skoltech scientists have developed a new version of a mass spectrometer that uses rotation frequencies of ionized molecules in strong magnetic fields to measure masses with higher accuracy (FT ICR). The team has designed an ion trap that ensures the utmost resolving power in ultra-strong magnetic fields. The research was published in the journal Analytical Chemistry.
The ion trap is shaped like a cylinder made up of electrodes, with electric and magnetic fields generated inside. The exact masses of the test sample’s ions can be determined from their rotation frequencies. The electrodes must create a harmonized field of a particular shape such that the ions rotate predictably. A trap with such a field is called a Dynamically Harmonized Cell (DHC).