Mass Spectrometry Techniques and Applications

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• MEHMET SELİM HANAY

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• CEM ESEN

Protonated amino acids and derivatives RCH(NH2)C(+O)X · H(+) (X = OH, NH2, OCH3) do not form stable acylium ions on loss of HX, but rather the acylium ion eliminates CO to form the immonium ion RCH = NH 2 (+) . By contrast, protonated dipeptide derivatives H2NCH(R)C(+O)NHCH(R')C(+O)X · H(+) [X = OH, OCH3, NH2, NHCH(R″…

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• SALİH ÖZÇUBUKÇU

The unimolecular and low energy collision-induced fragmentation reactions of the MH(+) ions of N-acetyl-tri-alanine, N-acetyl-tri-alanine methyl ester, N-acetyl-tetra-alanine, tetra-alanine, penta-alanine, hexa-glycine, and Leu-enkephalin have been studied with a particular emphasis on the formation and fragmentation…

adsorption and thermogravimetric analysis. A decomposition mechanism was proposed and revealed using NMR spectroscopy. Solutions to avoid or overcome the limitations of the most common crosslinkers, functional monomers and extraction techniques were proposed and experimentally validated.

• SİBEL BÜYÜKTİRYAKİ

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• EZEL BOYACI

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• EZEL BOYACI

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• FUNDA AYDIN

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• ADİL DENİZLİ

The metastable ion fragmentation reactions of protonated α-amino acids were recorded. In addition, the low-energy collision-induced dissociation (CID) reactions were studied as a function of collision energy and breakdown graphs, expressing the energy dependence of the fragmentation reactions, were established for a v…

The rapid increase in the prevalence of chronic heart failure (CHF) worldwide underscores an urgent need to identify biomarkers for the early detection of CHF. Post-translational modifications (PTMs) are associated with many critical signaling events during disease progression and thus offer a plethora of candidate bi…