کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5420675 | 1395461 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved pulse schemes for separated local field spectroscopy for static and spinning samples
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Improved pulse schemes for separated local field spectroscopy for static and spinning samples Improved pulse schemes for separated local field spectroscopy for static and spinning samples](/preview/png/5420675.png)
چکیده انگلیسی
An improved pulse sequence for SLF experiments based on the magic sandwich (MS) scheme for homo-nuclear dipolar decoupling is proposed. The sequence incorporates a double MS, both on I and S spins and has been named as EXE-MS2. The proposed scheme which has a scaling factor of 1 is observed to be free from low intensity artifacts and provides better line-widths particularly for S spins labeled at multiple sites. The pulse sequence which has been applied on static oriented samples incorporates the EXE scheme where direct polarization of the S spin in the B0 field is utilized in the place of polarization inversion and is observed to perform well without any loss of sensitivity while ensuring considerable reduction in rf power input into the sample. The EXE scheme has also been tested for solid samples under MAS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Nuclear Magnetic Resonance - Volume 33, Issue 3, March 2008, Pages 57-63
Journal: Solid State Nuclear Magnetic Resonance - Volume 33, Issue 3, March 2008, Pages 57-63
نویسندگان
Bibhuti B. Das, T.G. Ajithkumar, K.V. Ramanathan,