Results 21 to 30 of about 745,109 (408)

High pressure liquid chromatography of benzimidazolcs

Pesticide Science, 1976
AbstractA laboratory‐assembled high pressure liquid chromatograph with variable wavelength ultraviolet detector is described. The chromatography of the systemic fungicides benomyl, thiabendazole, thiophanate, related fungicides and benzimidazoles (13 compounds in all) is described using reverse phase and adsorption systems.
Austin, D. J., Lord, K. A., Williams, I. H.   +2 more
openaire   +2 more sources

Rapid Characterization and Identification of Flavonoids in Radix Astragali by Ultra-High-Pressure Liquid Chromatography Coupled with Linear Ion Trap-Orbitrap Mass Spectrometry.

Journal of Chromatographic Science, 2015
A simple and effective method was established for separation and characterization of flavonoid constituents in Radix Astragali (RA) by combination of ultra-high-pressure liquid chromatography with LTQ-Orbitrap tandem mass spectrometry (u-HPLC-LTQ ...
Jing Zhang, Xiao-jie Xu, Wen Xu, Juan Huang, Da-yuan Zhu, Xiao-hui Qiu   +5 more
semanticscholar   +1 more source

STRUCTURE OF METHYLPHEOPHORBIDE-RCI [PDF]

, 1986
he methanolic extract of the cyanobacterium (blue-green alga) Spirulina geitleri has been treated with methanolic acid to convert all chlorophyllous pigments to their methylpheophorbides.
Budzikiewicz H., Dismukes G. C., Dornemann D., Dornemann D., Dornemann D., Feher G., Fischer H., Fuhrhop J.H., Harrison J. E., Hynninen P. H., Hynninen P. H., Klimov V. V., Knaff D. B., Moore R. E., Norris J.R., O'Malley P. J., Schaffernicht H., Schatz G. H., Scheer H., Scheer H., Senger H., Svec W. A., Thomas J. A., Vacek K., Vierling E., Wasielewski M., Wu S.M., Yuasa M.   +27 more
core   +1 more source

Analysis of total urinary catecholamines by liquid chromatography: methodology, routine experience and clinical interpretations of results [PDF]

, 1983
A simple routine method is described for simultaneous assay of total urinary adrenaline, noradrenaline and dopamine. The catecholamines are pre-purified on a small ion-exchange column, separated by reversed phase ion-pair liquid chromatography, and are ...
Kees, Frieder K., Schleicher, E. D., Wieland, O. H.   +2 more
core   +1 more source

Enricher for Fraction of High-Pressure Liquid Chromatography [PDF]

Journal of Chromatographic Science, 2005
A device is developed for concentrating a dilute solution without losing the components with boiling points slightly higher than the solvent. The device consists of an evaporator, receptor, and approximately 100 capillaries. A dilute solution is introduced into the evaporator and heated at a lower temperature than the boiling point of the solvent with ...
Masayuki Matsui, Tadao Ogawa, Takanori Mizuno   +2 more
openaire   +3 more sources

Design, fabrication and characterization of monolithic embedded parylene microchannels in silicon substrate [PDF]

, 2006
This paper presents a novel channel fabrication technology of bulk-micromachined monolithic embedded polymer channels in silicon substrate. The fabrication process favorably obviates the need for sacrifical materials in surface-micromachined channels and
Chen, Po-Jui, Shih, Chi-Yuan, Tai, Yu-Chong   +2 more
core   +2 more sources

Validation of a chromatographic method to routine analysis of trans-resveratrol and quercetin in red wines [PDF]

Pesquisa Agropecuária Brasileira, 2017
: The objective of this work was to validate a fast method with low-solvent use, for the analysis of trans-resveratrol and quercetin in red wines. The wines were prepared, using a classical method, from the grape (Vitis vinifera) cultivars Cabernet Franc,
Letícia Flores da Silva, Celito Crivellaro Guerra, Ana Beatriz Costa Czermainski, Leonardo Ferrari, Ana Maria Bergold   +4 more
doaj   +1 more source

Ultra-High-Pressure Liquid Chromatography ☆ [PDF]

, 2017
One decade has passed since the introduction of commercial ultra-high-pressure liquid chromatography (UHPLC) technology and columns packed with sub-2-μm particles, which has led to significant improvements in separation efficiency and sample throughput. This article outlines fundamental and practical aspects of UHPLC.
Eeltink, Sebastiaan, De Vos, Jelle
openaire   +2 more sources

Use of superheated liquids for the extraction of non-volatile compounds from wood: HPLC studies [PDF]

, 2004
A study of the extraction of oak wood compounds using superheated water-ethanol mixtures ranging from 10 to 60% ethanol is reported. Identification and characterization of the extracted compounds have been made by high performance liquid chromatography ...
Chatonnet, Cutzach, Cutzach, Delgado, Giménez Martı́nez, González-Rodrı́guez, J González-Rodrı́guez, M.D Luque de Castro, P Pérez-Juan, Sarni, Scalbert, Tricard, Viriot   +12 more
core   +1 more source

Superheated liquids for the extraction of solid residues from winemaking processes [PDF]

, 2003
Solid residues from winemaking process have been subjected to extraction with superheated water-ethanol mixtures. Identification and characterisation of the extracted compounds have been made by spectrophotometry, gas chromatography with either flame ...
Gonzalez-Rodriguez, Jose, Luque de Castro, Maria Dolores, Perez Juan, Pedro   +2 more
core   +1 more source