Dual Polarity Ion Confinement and Mobility Separations
نویسندگان
چکیده
منابع مشابه
Gas-phase chiral separations by ion mobility spectrometry.
This article introduces the concept of chiral ion mobility spectrometry (CIMS) and presents examples demonstrating the gas-phase separation of enantiomers of a wide range of racemates including pharmaceuticals, amino acids, and carbohydrates. CIMS is similar to traditional ion mobility spectrometry, where gas-phase ions, when subjected to a potential gradient, are separated at atmospheric press...
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The performance of differential IMS (FAIMS) analyzers is much enhanced by gases comprising He, especially He/N2 mixtures. However, electrical breakdown has limited the He fraction to ~50%-75%, depending on the field strength. By the Paschen law, the threshold field for breakdown increases at shorter distances. This allows FAIMS using chips with microscopic channels to utilize much stronger fiel...
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ژورنال
عنوان ژورنال: Journal of The American Society for Mass Spectrometry
سال: 2019
ISSN: 1044-0305,1879-1123
DOI: 10.1007/s13361-019-02138-1