کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5484578 1522963 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laser Desorption/Ionization-Time of Flight (LDI-TOF) and Matrix-Assisted Laser Desorption/Ionization - Time of Flight (MALDI - TOF) mass spectrometry of an Algerian asphaltene
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Laser Desorption/Ionization-Time of Flight (LDI-TOF) and Matrix-Assisted Laser Desorption/Ionization - Time of Flight (MALDI - TOF) mass spectrometry of an Algerian asphaltene
چکیده انگلیسی
Both LDI-TOF and MALDI-TOF Mass spectroscopy experiments of an Algerian asphaltene derived from a deposit were performed. LDI mass experiments were conducted for both linear and reflectron modes under laser wavelength/attenuation variation. The different LDI-Mass spectra show that mass distribution depends on experimental condition for masses below 1000 amu and that the average molecular weight is around 650 for the polar fraction and beyond 1000 amu for non-polar ones. The use of different matrices as CHCA, HABA and Dithranol changes slightly the aspect of the spectra.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Egyptian Journal of Petroleum - Volume 26, Issue 3, September 2017, Pages 803-810
نویسندگان
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