ChemInform Abstract: DETERMINATION OF THE THERMODYNAMIC MIXING FUNCTIONS OF THE LIQUID IRON-GERMANIUM ALLOY SYSTEM BY MASS SPECTROMETRIC MEASUREMENTS

1978 ◽  
Vol 9 (44) ◽  
Author(s):  
L. ERDELYI ◽  
J. TOMISKA ◽  
A. NECKEL ◽  
H. NOWOTNY
Keyword(s):  
Liquid Iron ◽  
Alloy System ◽  
Mass Spectrometric ◽  
Germanium Alloy ◽  
Spectrometric Measurements ◽  
Mixing Functions

Burnup Determination of High Burnup and Dry Processed Fuels Based on Isotope Dilution Mass Spectrometric Measurements

2007 ◽  
Vol 44 (7) ◽  
pp. 1015-1023 ◽  
Author(s):  
Jung Suk KIM ◽  
Young Shin JEON ◽  
Soon Dal PARK ◽  
Sun Ho HAN ◽  
Jong Goo KIM
Keyword(s):  
Isotope Dilution ◽  
Mass Spectrometric ◽  
Spectrometric Measurements ◽  
High Burnup

scholarly journals De novo sequencing of proteins and peptides: algorithms, applications, perspectives

2018 ◽  
Vol 1 (1) ◽  
pp. e00005 ◽  
Author(s):  
K.V. Vyatkina
Keyword(s):  
Mass Spectrometry ◽  
De Novo ◽  
De Novo Sequencing ◽  
Database Search ◽  
Mass Spectrometric ◽  
Spectrometric Measurements ◽  
Further Development ◽  
Structure Of Proteins ◽  
Proteins And Peptides

Determination of the primary structure of proteins and peptides constitutes an important step in studying their properties. Currently, mass spectrometry is commonly applied to this end. The results of mass spectrometric measurements can be interpreted by means of either a database search or de novo sequencing methods. The appeal of the latter is due to their applicability to investigating unknown proteins, as well as the ones that cannot be analyzed with genomics or transcriptomics methods. In this paper, we briefly review the existing approaches to de novo sequencing of proteins and peptides, along with the problems that can be solved using those, and indicate directions and perspectives for their further development.

Tandem Mass Spectrometric Evaluation of Core Structures of Aromatic Compounds after Catalytic Deoxygenation

2017 ◽  
Author(s):  
Xueming Dong
Keyword(s):  
Aromatic Compounds ◽  
Supported Catalyst ◽  
Mass Spectrometric ◽  
Spectrometric Method ◽  
Mass Spectrometric Method ◽  
Aromatic Rings ◽  
Tandem Mass Spectrometric ◽  
Catalytic Deoxygenation ◽  
Oxygen Atoms

Catalytic deoxygenation of coal enhances the stability and combustion performance of coal-derived liquids. However, determination of the selectivity of removal of oxygen atoms incorporated in or residing outside of aromatic rings is challenging. This limits the ability to evaluate the success of catalytic deoxygenation processes. A mass spectrometric method, in-source collision-activated dissociation (ISCAD), combined with high resolution product ion detection, is demonstrated to allow the determination of whether the oxygen atoms in aromatic compounds reside outside of aromatic rings or are part of the aromatic system, because alkyl chains can be removed from aromatic cores via ISCAD. Application of this method for the analysis of a subbituminous coal treated using a supported catalyst revealed that the catalytic treatment reduced the number of oxygen-containing heteroaromatic rings but not the number of oxygen atoms residing outside the aromatic rings.<br>

Tandem Mass Spectrometric Evaluation of Core Structures of Aromatic Compounds after Catalytic Deoxygenation

2017 ◽  
Author(s):  
Xueming Dong
Keyword(s):  
Aromatic Compounds ◽  
Supported Catalyst ◽  
Mass Spectrometric ◽  
Spectrometric Method ◽  
Mass Spectrometric Method ◽  
Aromatic Rings ◽  
Tandem Mass Spectrometric ◽  
Catalytic Deoxygenation ◽  
Oxygen Atoms

Catalytic deoxygenation of coal enhances the stability and combustion performance of coal-derived liquids. However, determination of the selectivity of removal of oxygen atoms incorporated in or residing outside of aromatic rings is challenging. This limits the ability to evaluate the success of catalytic deoxygenation processes. A mass spectrometric method, in-source collision-activated dissociation (ISCAD), combined with high resolution product ion detection, is demonstrated to allow the determination of whether the oxygen atoms in aromatic compounds reside outside of aromatic rings or are part of the aromatic system, because alkyl chains can be removed from aromatic cores via ISCAD. Application of this method for the analysis of a subbituminous coal treated using a supported catalyst revealed that the catalytic treatment reduced the number of oxygen-containing heteroaromatic rings but not the number of oxygen atoms residing outside the aromatic rings.<br>

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