A COMPARISON OF MASS SPECTROMETRIC TECHNIQUES IN THE STRUCTURE ELUCIDATION OF A NON-VOLATILE SECOIRIDOID GLYCOSIDE

1982 ◽  
Vol 34 (S12) ◽  
pp. 110P-110P
Author(s):  
A. O. Adeoye ◽  
R. D. Waigh
Keyword(s):  
Structure Elucidation ◽  
Mass Spectrometric ◽  
Secoiridoid Glycoside ◽  
Mass Spectrometric Techniques

Royleanumin, a New Phytotoxic neo-Clarodane Diterpenoid from Teucrium royleanum

2012 ◽  
Vol 7 (9) ◽  
pp. 1934578X1200700
Author(s):  
Shabir Ahmad ◽  
Muhammad Arfan ◽  
Naheed Riaz ◽  
Riaz Ullah ◽  
Ziarat Shah ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Ursolic Acid ◽  
Structure Elucidation ◽  
Environmentally Friendly ◽  
Mass Spectrometric ◽  
Spectral Studies ◽  
Strong Activity ◽  
Clerodane Diterpenoid ◽  
Reported Data ◽  
Mass Spectrometric Techniques

Here we report the isolation and structure elucidation of a new phytotoxic neo-clerodane diterpenoid, royleanumin (1), along with known constituents, ursolic acid and β-amyrin. Its structure was deduced by spectral studies including NMR spectroscopy, mass spectrometric techniques and by the comparison with reported data. The compound was assayed for its phytotoxicity against lettuce seedlings. Royleanumin (1) exhibit strong activity and can be proposed as lead chemical for the development of a new environmentally friendly herbicide.

Structure elucidation of mitomycin C metabolites. I. The applicability of various mass spectrometric techniques in metabolic studies on mitomycin C

1988 ◽  
Vol 17 (5) ◽  
pp. 377-382 ◽  
Author(s):  
C. E. M. Heeremans ◽  
R. A. M. Van Der Hoeven ◽  
W. M. A. Niessen ◽  
U. R. Tjaden ◽  
G. F. Lavos ◽  
...  
Keyword(s):  
Mitomycin C ◽  
Structure Elucidation ◽  
Mass Spectrometric ◽  
Metabolic Studies ◽  
Mass Spectrometric Techniques

Inorganic mass spectrometry

2018 ◽  
Vol 4 (3) ◽  
Author(s):  
Josefina Pérez-Arantegui ◽  
Francisco Laborda
Keyword(s):  
Mass Spectrometry ◽  
High Precision ◽  
Mass Spectrometric ◽  
Sample Introduction ◽  
Mass Separation ◽  
Analytical Technique ◽  
Good Spatial Resolution ◽  
Icp Ms ◽  
Analytical Properties ◽  
Mass Spectrometric Techniques

Abstract Inorganic mass spectrometry has been used as a well-known analytical technique to determine elemental/isotopic composition of very diverse materials, based on the different mass-to-charge ratios of the ions produced in a specific source. In this case, two mass spectrometric techniques are explained and their analytical properties discussed: inductively coupled plasma mass spectrometry (ICP-MS) and thermal ionisation mass spectrometry (TIMS), since they are the most used in art and archaeological material studies. Both techniques combine advantageous analytical properties, like low detection limits, low interferences and high precision. The use of laser ablation as sample introduction system in ICP-MS allows to avoid sample preparation and to perform good spatial-resolution analysis. The development of new instruments, improving the mass separation and the detection of the ions, specially multicollection detectors, results in high-precision isotopic analysis. A summary of the important applications of these mass spectrometric techniques to the analysis of art and archaeological materials is also highlighted.

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