@article {184, title = {P-type gradient-enhanced COSY experiments show lower t(1) noise than N-type}, journal = {Magnetic Resonance in Chemistry}, volume = {35}, number = {10}, year = {1997}, note = {Times Cited: 6}, pages = {680-686}, abstract = {Many of the perturbations that lead to t(1) noise in 2D NMR spectroscopy cause fluctuations in the relative phases of pulses and coherences. Because the sensitivity of the phase of a coherence to changes in the phase of a pulse depends on the change of coherence order, P-type signals in homonuclear correlation experiments are insensitive to errors in the phase of the mixing pulse, and hence they show less t(1) noise than N-type signals. This effect is illustrated for the gradient COSY experiment. (C) 1997 John Wiley \& Sons, Ltd.}, isbn = {0749-1581}, url = {://WOS:A1997YA18900004}, author = {Horne, T. J. and Morris, Gareth A.} }