PAHF - What does PAHF stand for? The Free Dictionary
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2a that both RPAHF and PAH samples show a similar characteristic broad absorption band of the amino group (--N[H.sub.2]) around at 3120 and 3300 [cm.sup.-1], a more significant absorption peak of -NH-N[H.sub.2] around at 1431 [cm.sup.-1], which further prove that RPAHF sample(regeneration from PAHF to PAH) recovers to its original structural features.
The 1H-NMR spectra of the PAHF. [Color figure can be viewed at wileyonlinelibrary.com]