Effects in Differential Mobility Spectrometry

Increases in icm temperature by field heating is known to have several effects, including 

FIGURE 11.7 Dispersion plot for propyl acetate in a DMS analyzer at a temperature of 100°C, from 59 Td (500 V) to 176 Td (1,500 V). The CV range is -5 (-43 V) to 1.8 Td (15 V). The signal intensity is both shaded and contour coded, and the trajectory of RIP, M2H, MH, fragment (protonated acetic acid) are labeled as RIP, M2H, MH, and F, respectively. (From An et al.. Gas phase fragmentation of protonated esters in air at ambient pressure through ion heating by electric field in differential mobility spectrometry and by thermal bath in ion mobility spectrometry, Int. J. Mass Spectrom. 2011. With permission.) 

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FIGURE 8.6 Dispersion/compensation spectrum for DMMP at 1.55 atm. The spectrum shown below is the compensation voltage spectrum at a dispersion voltage of RF plus 1,470 peak voltage. (From Nazarov et al.. Pressure effects in differential mobility spectrometry. Anal. Chem. 2006, 78, 7697-7706. With permission.)... 

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