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. Author manuscript; available in PMC: 2015 Sep 29.
Published in final edited form as: Analyst. 2015 Sep 28;140(20):6845–6852. doi: 10.1039/c5an00844a

Figure 2.

Figure 2

a) Left panel shows the contours of effective potential (100 V0-p, 1 MHz rf, 5 V guard bias, m/z 622, +1) in the YZ plane at the potential minima point between the surfaces (X = 1 mm from the center of X = 1.4 mm for SLIM surface) and right panel shows the potential contour between the surfaces (Supplementary Information Figure S2 shows the potential profile between the surfaces). A single ion trajectory (dark-blue line) calculated by SIMION and the board layout are superimposed for clarity. The ion plume width from simulations (not shown) was ~2 mm. b) SIMION simulation of ion turn (m/z 622) in SLIM tee at 10 V guard bias resulting in a plume width ~1.6 mm. c) SIMION simulation of ion turn (m/z 622) in SLIM tee at 25 V guard bias resulting in an ion plume width of ~0.8 mm, but where significant ion losses occur at the turn.