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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2015 Dec 17;27(3):552–555. doi: 10.1007/s13361-015-1313-9

Figure 1.

Figure 1

Schematic of a custom-built flow system for carbene footprinting on an FPOP platform. A pulsed laser beam at 355 nm (Nd-YAG laser) was focused on a transparent window in silica tubing of 150 μm inner diameter.