Figure 12 | Scientific Reports

Figure 12

From: In-situ detoxification of schedule-I chemical warfare agents utilizing Zr(OH)4@W-ACF functional material for the development of next generation NBC protective gears

Figure 12

(A) The first (1H) NMR spectrum demonstrates the mixture of compounds obtained after the degradation of sarin. The relevant degradation product(s) cannot be identified from the spectrum. (B) The second (31P{1H}) NMR spectrum clearly shows the presence of one phosphorus-containing compound. Signals for sarin and the characteristic P-F coupling (1043 Hz) is missing. The chemical shift is also observed to be to be in the region corresponding to that of O-alkyl aklylphosphonic acids. (C) The third (31P-1H) NMR spectrum clearly shows the presence of isopropyl methylphosphonic acid (IMPA). Conclusively identification was performed by recording the spectrum standard addition of IMPA to the reaction mixture (not shown in the figure).

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