Assessment of the performance of various search systems for mass spectra files of steroids

 
see the original item page
in the repository's web site and access all digital files if the item*
share




1993 (EN)
Assessment of the performance of various search systems for mass spectra files of steroids (EN)

Statheropoulos, M (EN)
Georgakopoulos, C (EN)

N/A (EN)

The performance of six similarity indices in combination with five encoding modes of mass spectra files of steroids, using forward searching, was tested. The evaluation was based on a number of criteria that compare the effectiveness, the resolution and the ability to retrieve structurally similar compounds. The results of searching are presented and discussed. It seems that the criteria used can differentiate sufficiently the performance of searching systems. In the particular steroid files used, it appears that search systems that use the Euclidean distance as a similarity index give a better overall performance, especially when combined with the abbreviated modes two masses every fourteen and sixteen most significant masses. (EN)

journalArticle

androsterone (EN)
drostanolone (EN)
unclassified drug (EN)
methyltestosterone (EN)
gas chromatography-mass spectrometry (EN)
similarity indices (EN)
human tissue (EN)
anabolic agent (EN)
athlete (EN)
doping (EN)
gas chromatography (EN)
article (EN)
urinalysis (EN)
controlled study (EN)
Euclidean distance (EN)
mass spectrometry (EN)
steroids (EN)
human (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Analytica Chimica Acta (EN)

1993


ELSEVIER SCIENCE BV (EN)



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)