کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5406702 | 1393185 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrafast 2D COSY with constant-time phase-modulated spatial encoding
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Recently ultrafast techniques enable 2D NMR spectra to be obtained in a single scan. They have been successfully applied for 2D COSY, TOCSY, DOSY, HMQC, and J-resolved spectra. In this paper, two alternative ultrafast 2D COSY methods (g-COSY and gDQF-COSY) based on continuous constant-time phase-modulated spatial encoding were proposed. Theoretical expressions of the resulting signals were deduced. Experiments were performed to verify our theoretical analysis and the feasibility of the methods. Comparisons between the experimental results of our methods and those of the previous real-time phase-modulated spatial encoding method demonstrate that the signal-to-noise ratio and resolution of the 2D COSY spectra are improved, and a good 2D COSY spectrum is easier to achieve by using our methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetic Resonance - Volume 204, Issue 1, May 2010, Pages 82-90
Journal: Journal of Magnetic Resonance - Volume 204, Issue 1, May 2010, Pages 82-90
نویسندگان
Can Wu, Mingfang Zhao, Shuhui Cai, Yulan Lin, Zhong Chen,