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. Author manuscript; available in PMC: 2006 Mar 22.
Published in final edited form as: J Am Soc Mass Spectrom. 1997 Aug;8(8):771–780. doi: 10.1016/S1044-0305(97)84129-3

Figure 1.

Figure 1

Schematic diagram of the Berkeley external electrospray ion source Fourier-transform mass spectrometer showing the heated region of the vacuum chamber.