کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1194049 1492337 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Metal dicarbides as intermediate species in thermal ion formation mechanisms
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Metal dicarbides as intermediate species in thermal ion formation mechanisms
چکیده انگلیسی

Lanthanide elements (lanthanum to lutetium) and actinide elements (uranium and plutonium) adsorbed onto resin beads and mounted on rhenium filaments were studied as thermal ionization sources. Temperatures at which these ion sources gave maximum intensities were measured for each of these elements. The temperature trends correlate with the dissociation energies of the corresponding metal dicarbide compounds. The metal dicarbide functions as a carrier to take the lanthanide and actinide elements to higher temperatures than would be attainable otherwise. This results in release of the atomic species at a higher temperature where ionization probability is significantly increased.

A systematical study of the ion emission temperature from thermal ion sources containing lanthanide elements using thermal ionization mass spectrometry.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mass Spectrometry - Volume 286, Issue 1, 1 September 2009, Pages 7–10
نویسندگان
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