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Figure 4 | Chemistry Central Journal

Figure 4

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

Figure 4

Analysis of dihydrocoumarate and p-coumarate by UPLC-Q-IMS-TOFMS. A) Selected ion UPLC-MS chromatogram of dihydrocoumarate ion ([M-H]-m/z = 165.0545; calculated = 165.0552, 4.24 ppm error) with MS/MS spectrum inset. B) Ion mobility spectrum of dihydrocoumarate ion ([M-H]-). C) Selected ion UPLC-MS chromatogram of p-coumarate ion ([M-H]-m/z = 163.0395; calculated = 163.0395, 0 ppm error) with MS/MS spectrum inset. D) Ion mobility spectrum of p-coumarate ion ([M-H]-). E) 2-D plot of drift time vs. m/z for combined mixture of dihydrocoumarate and p-coumarate. 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.

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BMC Chemistry

ISSN: 2661-801X

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