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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: Magn Reson Chem. 2015 Jan 23;53(5):337–343. doi: 10.1002/mrc.4199

Figure 5. 1H{15N} HSQC spectra of QDA* adducts of an extract of A549 cells.

Figure 5

The A549 polar extract was prepared and derivatized as described in the Experimental Procedures. The dried sample was redissolved in 100% CD3OD. HSQC spectra were recorded at 14.1 T with acquisition times of 0.5 s in t2 and 25.6 ms in t1. The data tables were zero filled once in t2, linear predicted once in t1 and zero filled to 8192×2048 points. The free induction decays were processed using an unshifted Gaussian and a line broadening exponential of 4 Hz in both dimensions. 15N chemical shifts were referenced indirectly with respect to external liquid ammonia [20].

Some assignments are shown on the figure.