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. 2023 Mar 31;13(4):920. doi: 10.3390/life13040920

Figure 6.

Figure 6

The relative abundances (%) of the phosphonylated and phosphorylated as well as amount of inorganic phosphate (oxidation product of phosphite) observed in each sample. Where Samples B, D, and F where with urea as an additive, and Samples A, C, and E were without urea. The relative abundances (%) were calculated using the peak integration method of 31P-NMR [24,25,26].