Skip to main content
Figure 2 | Chemistry Central Journal

Figure 2

From: Use of coupled ion mobility spectrometry-time of flight mass spectrometry to analyze saturated and unsaturated phenylpropanoic acids and chalcones

Figure 2

Analysis of dihydrocaffeate and caffeate by UPLC-Q-IMS-TOFMS. A) Selected ion UPLC-MS chromatogram of dihydrocaffeate ion ([M-H]-m/z = 181.0502; calculated = 181.0501, -0.55 ppm error) with MS/MS spectrum inset. B) Ion mobility spectrum of dihydrocaffeate ion ([M-H]-). C) Selected ion UPLC-MS chromatogram of caffeate ion ([M-H]-m/z = 179.0344; calculated = 179.0344, 0 ppm error) with MS/MS spectrum inset. D) Ion mobility spectrum of caffeate ion ([M-H]-). E) 2-D plot of drift time vs. m/z for combined mixture of dihydrocaffeate and caffeate. Arrows indicate position of the two compounds. Image resolution was set to 1000 bins in the MS dimension to allow for ease of viewing of the ions.

Back to article page