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Abstract11Reduced mobility (K0Ion mobility spectrometry (IMS) separates gas-phase ions moving under an electric field according to their size to charge ratio. We used electrospray ionization IMS-mass spectrometry and computational chemistry to study the mobility shifts of the drugs dextromethorphan (Dx) and diphenhydramine (Dy) with the introduction of 2-butanol (B) as a shift reagent (SR) caused...
α-Trifluoromethyl benzyl alcohol (F) was introduced as a “shift reagent” in the buffer gas of an electrospray ionization ion mobility spectrometer coupled to a quadrupole mass spectrometer to explain the mobility shifts of selected compounds; ion mobilities depended on ion sizes and F-ion adducts binding energies calculated using Gaussian 09 at the X3LYP/6-311++G(d,p) level. The mobility shifts with...
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