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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: Prostaglandins Leukot Essent Fatty Acids. 2018 May 16;134:1–6. doi: 10.1016/j.plefa.2018.05.002

Figure 3.

Figure 3

CACI-MS1 and CACI-MS2 spectra of 20:3 FAME. A) CACI-MS1 spectrum showing m/z 374, 321, 289, and 271 characteristic ions of 20:3 FAME. B) CACI-MS/MS spectrum of the m/z 374 ion positively identifying 5,11,14-20:3 based on the detection of diagnostic ions m/z 304 and 192 for the diene and m/z 272 vinylic to the isolated double bond, for the peak at the expected chromatographic retention time.