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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2014 Jan;25(1):30–36. doi: 10.1007/s13361-013-0749-z

Figure 1.

Figure 1

Photo of a 2 μm i.d. chemically etched fused silica electrospray emitter similar to those used for MS measurements at low and ultralow (300 pL/min – 5 nL/min) liquid flow rates.