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. Author manuscript; available in PMC: 2018 Mar 27.
Published in final edited form as: Analyst. 2017 Mar 27;142(7):1010–1021. doi: 10.1039/c7an00031f

Figure 10.

Figure 10

(A) Agilent tuning mix ion current measured as a function of distance from the entrance to the TW SLIM module at a TW speed of 124 m/s, TW amplitude of 30 V, guard bias of 5 V, RF amplitude of 220 Vp-p at 650 kHz, and 2.75 mm gap at 4.00 Torr. Error bars represent standard deviations from triplicate measurements. (B) Total ion current (TIC) was measured over 8 h, and the mass spectrum was obtained by being averaged from 0 to 8 h with the above identical conditions.40 Adapted with permission from ref. 40, Copyright (2016) American Chemical Society.