کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1251445 | 1496067 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrospray Ionization Mass Spectra of Amino Acid Methyl Ester 5â²-Phosphoramidates of 2â², 3â²-Isopropylideneuridine1
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Amino acid methyl ester phosphates were synthesized and determined by using positive-ion mode electrospray ionization mass spectrometry (ESIMS) in combination with multistage tandem mass spectrometry. The fragmentation pathways were investigated, and it was observed that most fragment ions contained the phosphoryl group. It was interesting to observe that the fragmentation pathways of the protonated molecule show some differences when compared with those of the sodium ion adduct. The methoxy group of amino acid methyl ester can migrate from the carbonyl group to the phosphoryl group in the sodium ion adduct.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Research in Chinese Universities - Volume 22, Issue 6, November 2006, Pages 732-737
Journal: Chemical Research in Chinese Universities - Volume 22, Issue 6, November 2006, Pages 732-737
نویسندگان
CHEN Wei-zhu, GAO Yu-xing, BAI Yong-gang, HAN Da-xiong, ZHAO Yu-fen,