کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5407432 1393216 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Imaged deconvolution: A method for extracting high-resolution NMR spectra from inhomogeneous fields
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Imaged deconvolution: A method for extracting high-resolution NMR spectra from inhomogeneous fields
چکیده انگلیسی
We present a novel method for obtaining high resolution NMR spectra in the presence of grossly inhomogeneous magnetic fields, such as those encountered in one-sided access NMR. Our method combines the well-known principle of reference deconvolution with NMR imaging in order to resolve spectral features with frequency resolution orders of magnitude smaller than the prevailing line-broadening due to field inhomogeneity. We demonstrate that, in cases of inhomogeneous field line-broadening more than an order of magnitude larger than the spectral features to be resolved, rather than performing reference deconvolution on the sample as a whole, it is more favourable in terms of SNR to divide the target region of a sample into smaller sub-regions, by means of chemical shift imaging, and then to perform reference deconvolution on the individual sub-region spectra, finally summing the results In this way, significant resolution enhancements can be obtained in the presence of severe magnetic field inhomogeneity without an unacceptable loss in SNR.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetic Resonance - Volume 185, Issue 1, March 2007, Pages 130-137
نویسندگان
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