Determination and disposition of trifluralin in the rat. Separation by sequential high-pressure liquid chromatography and quantitation by field ionization mass spectrometry

1977 ◽  
Vol 25 (4) ◽  
pp. 901-908 ◽  
Author(s):  
Henry d'A. Heck ◽  
Robert L. Dyer ◽  
Arthur C. Scott ◽  
Michael Anbar
Keyword(s):  
Mass Spectrometry ◽  
High Pressure ◽  
Liquid Chromatography ◽  
High Pressure Liquid Chromatography ◽  
Ionization Mass Spectrometry ◽  
Field Ionization ◽  
Ionization Mass

Thermal fragmentation analysis of neutral polysaccharides and the presence of 1,6-anhydrooligosaccharides

1990 ◽  
Vol 68 (7) ◽  
pp. 1038-1043 ◽  
Author(s):  
R. J. Helleur ◽  
P. Jackman
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
High Pressure ◽  
Liquid Chromatography ◽  
High Pressure Liquid Chromatography ◽  
Chemical Ionization ◽  
Ionization Mass Spectrometry ◽  
Chemical Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Desorption Chemical Ionization

Small quantities of pyrolysates were obtained from micro-scale off-line pyrolysis of the neutral polysaccharides: cellulose, amylose, laminaran, nigeran, and a mannan from ivory nut. The pyrolytic fragments were analyzed by desorption chemical ionization – mass spectrometry, trimethylsilyl derivatization – capillary gas chromatography (– ammonia chemical ionization mass spectrometry) and benzoyl derivatization – high pressure liquid chromatography. Intact 1,6-anhydrohexosemonosaccharide, and -disaccharide fragments were identified as major products. By using off-line analytical pyrolysis information on saccharide composition can be obtained from the formation of anhydromonosaccharide products while linkage information is obtainable from distinctive anhydrodisaccharide products. Keywords: pyrolysis, polysaccharides, 1,6-anhydrooligosaccharides, desorption chemical ionization, mass spectrometry, gas chromatography, high pressure liquid chromatography.

scholarly journals Ethoxylated Butoxyethanol-BADGE Adducts—New Potential Migrants from Epoxy Resin Can Coating Material

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3682
Author(s):  
Monika Beszterda ◽  
Małgorzata Kasperkowiak ◽  
Magdalena Frańska ◽  
Sandra Jęziołowska ◽  
Rafał Frański
Keyword(s):  
Mass Spectrometry ◽  
High Pressure ◽  
Liquid Chromatography ◽  
Epoxy Resin ◽  
Diglycidyl Ether ◽  
Ionization Mass ◽  
Coating Materials ◽  
Oxyethylene Unit ◽  
Bisphenol A Diglycidyl Ether ◽  
Product Ions

The acetonitrile extracts of can-coating materials have been analyzed by using high-pressure liquid chromatography/electrospray ionization-mass spectrometry (HPLC/ESI-MS). On the basis of detected ions [M + H]+, [M + NH4]+, [M + Na]+ and product ions, the ethoxylated butoxyethanol-bisphenol A diglycidyl ether adducts were identified in two of the analyzed extracts. Although the oxyethylene unit-containing compounds are widely used for the production of different kinds of materials, the ethoxylated species have not been earlier detected in epoxy resin can-coatings.

ChemInform Abstract: A Liquid Chromatography-Thermospray Ionization-Mass Spectrometry Guided Isolation of a New Sesquiterpene Aryl Ester from Armillaria novae-zelandiae.

ChemInform ◽  
2000 ◽  
Vol 31 (48) ◽  
pp. no-no
Author(s):  
Peadar Cremin ◽  
Patrick J. Guiry ◽  
Jean-Luc Wolfender ◽  
Kurt Hostettmann ◽  
Dervilla M. X. Donnelly
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Aryl Ester
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