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. 2018 Dec 4;10(12):1911. doi: 10.3390/nu10121911

Figure 4.

Figure 4

Figure 4

MS/MS spectra of 2-Isopropylmalic acid at average collision energies (10, 20, 40 eV) of: a pure analytical standard (A); and in the urine sample (B); extracted ion chromatogram (EIC) (C); and Find by Formula spectrum (D).