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. Author manuscript; available in PMC: 2020 Jun 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2020 Feb 11;31(3):642–650. doi: 10.1021/jasms.9b00081

Figure 2.

Figure 2.

Representative oscilloscope trace during acquisition. Each division represents 1 ms horizontally and 5 V vertically. (A) Agilent 6560 trapping funnel status readout. (B) Trigger signal from Arduino to laser. (C) Photodiode readback from one laser pulse.