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. Author manuscript; available in PMC: 2012 Nov 11.
Published in final edited form as: Angew Chem Int Ed Engl. 2010 Nov 22;49(48):9215–9218. doi: 10.1002/anie.201003329

Figure 2.

Figure 2

A two-dimensional slice taken at F3=178.4 ppm from the NCOCX spectrum using: the full, uniform 2048 t1/t2-samples (top); the truncated 608 uniform samples corresponding to the shaded area in Figure 1b with zero-filling (middle, left); the same with linear prediction (middle, right); the 608 NUS samples corresponding to the dots in Figure 1b without SIFT processing (bottom, left); the last with SIFT processing (bottom, right). The spectrum without SIFT processing (bottom left, where FFT was used after the missing time points were filled with zeroes) corresponds to the classical discrete Fourier transform (DFT) of the NUS data[17]. The minimum contour line is at 18% of the tallest peak in each panel. 1D traces at dashed lines are also shown, for which the vertical scales are the same for all panels. The shown slice contains signals with about 1–2 times the median peak intensity and S/N ranging between 8.4 and 15.6. Slices with weaker signals are shown in Figure S1 of the Supporting Information.