scholarly journals Review of the development in determination of 129I amount and the isotope ratio of 129I/127I using mass spectrometric measurements

2021 ◽  
pp. 106476
Author(s):  
Jihye Kim ◽  
Jong-Yun Kim ◽  
Sang-Eun Bae ◽  
Kyuseok Song ◽  
Jong-Ho Park
Keyword(s):  
Isotope Ratio ◽  
Mass Spectrometric ◽  
Spectrometric Measurements

Authenticity of sugar – Identification of plant source and determination of geographical origin of sucrose

2015 ◽  
pp. 40-43 ◽  
Author(s):  
Andreas G. Degenhardt
Keyword(s):  
Metabolic Pathways ◽  
Isotope Ratio ◽  
Geographical Origin ◽  
Hydrological Cycle ◽  
Isotope Ratios ◽  
Saccharum Officinarum ◽  
Mass Spectrometric ◽  
C3 And C4 Plants ◽  
Plant Source

The isotope ratios of water, organic matter and micronutrients from food are dependent on the circumstances and sites of their origin and production. Analytical methods, based on mass spectrometry, are established for routine determination of isotopes. Differentiation between metabolic pathways of C3 and C4 plants is realizable by determination 13C/12C ratios which can distinguish and identify sucrose from pure beet (Beta vulgaris) and pure cane (Saccharum officinarum). Influenced by the worldwide hydrological cycle the isotope ratios of 2H/1H and 18O/16O vary systematically, the variations give information about geographical origin. The exemplarily determination of authenticity is demonstrated by using mass spectrometric isotope ratio evaluation for identification of plant source and geographical origin with the help of selected sugar samples with known origin.

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.

Determination of boron isotope ratio in boron carbide using a laser mass spectrometric method

2004 ◽  
Vol 18 (2) ◽  
pp. 231-234 ◽  
Author(s):  
Mathew Joseph ◽  
Natrajan Sivakumar ◽  
Periasamy Manoravi ◽  
Rajagopalan Balasubramanian
Keyword(s):  
Boron Carbide ◽  
Isotope Ratio ◽  
Mass Spectrometric ◽  
Boron Isotope ◽  
Spectrometric Method ◽  
Mass Spectrometric Method
Sign in / Sign up

Export Citation Format

Share Document