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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2017 Dec 12;29(3):481–489. doi: 10.1007/s13361-017-1861-2

Figure 1.

Figure 1

a) Ozone formation and decomposition in ambient air near an LP-Hg lamp. b) Experimental setup for implementing UV-lamp induced ozonolysis on a static nanoESI source. Positive ion mode MS spectra of 5 μM PC 16:0/18:1(9Z) dissolved in 7:3 ACN:H2O, 1% acetic acid (c) before UV irradiation and (d) during UV irradiation. e) Structures of protonated PC 16:0/18:1(9Z) and the aldehyde product resulting from ozonolysis. (f) XIC of on/off ozonolysis depicting the baseline peak area intensities of precursor ion (m/z 760.6) and reaction product (m/z 650.4) as a function of time.