کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5407745 1393229 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
ELISE NMR: Experimental liquid sealing of NMR samples
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
ELISE NMR: Experimental liquid sealing of NMR samples
چکیده انگلیسی
We present a simple, generally applicable approach to prevent sample evaporation when working at elevated temperatures in high resolution NMR. It consists of experimentally sealing the NMR sample by a second liquid (Experimental Liquid Sealing, ELISE). For aqueous samples, we identified the mineral oil commonly used in PCR application as the best candidate, because it contains only a very limited amount of water-soluble contaminants, is stable over time and heat resistant. The procedure does not interfere with shim settings, and is compatible with a wide variety of samples, including oligosaccharides and proteins. For chloroform samples, a simple drop of water allows to efficiently seal the sample, avoiding solvent evaporation even over lengthy time periods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetic Resonance - Volume 181, Issue 2, August 2006, Pages 199-202
نویسندگان
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