H-NMR Spectroscopy of Isolated Microbubble Surfactant

Chemical shift of protons in long-chain fatty acids and esters (expressed as 6 = parts per million relative to tetramethylsilane = 0.00). (Modified from ref. 388.) 

9 ch3 Terminal methyl remote from double bonds and side groups Unsymm. triplet 

0 CH3 Terminal methyl in fi-position to olefinic carbon Triplet 

0 =chch2 CH2 adjacent to isolated olefine group Apparent doublet 

35 CHjCOO Protons on 2-carbon in acid or ester Unsymm. triplet 

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