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A reversed-phase high-performance liquid chromatographic method is described for a stability-indicating assay of folic acid in multivitamin preparations. This method shows excellent recovery and precision characteristics, allows the determinatio[...]
documento electrónico
In this book, I have tried to show the way in which high performance liquid chromatography–mass spectrometry (LC–MS) has developed, somewhat slowly it has to be said, into a powerful hybrid analytical technique.In the first chapter, I have discu[...]
Article : texto impreso
Un método rápido y fácil que utiliza la cromatografía líquida de alta presió ( HPLC) se ha propuesto para determinar almidón en papel: El almidón es convertido en dextrosa por hidrólisis del almidón con enzimas.Agregando una cantidad conocida de[...]Article : texto impreso
Determinación de Flufenoxuron en el aire y en el polvillo en interiores. Un preservante de madera curativo que contiene 0.02% de Flufenoxuron ( Flurox ) fué aplicado sobre una extensa área en una sala de ensayos. Varias aplicaciones originaron [...]Article : texto impreso
PLATEN, A., Autor ; HÖLBACHER, G., Autor ; WEGEN, H.-W., Autor |Determinación de Flufenoxuron en el aire y en el polvillo en interiores. Un preservante de madera curativo que contiene 0.02% de Flufenoxuron ( Flurox ) fué aplicado sobre una extensa área en una sala de ensayos. Varias aplicaciones originaron [...]
texto impreso
A rapid and simple method for the determination of taurine (2-aninoethanesulphonic acid) in complex samples is described. It is based on the HPLC separation of the dinitrophenyl (DNP) derivative of taurine. The reaction conditions are selected t[...]
texto impreso
Taurine (2-aminoethanesulfonic acid) was quantitated by reversed-phase chromatography on a C18. Resolve column using a linear gradient of 9-l 1% methanol in water. Glutamine was used as the internal standard. Pre-column derivatization of the am[...]
texto impreso
In the present paper the results of the determination of lactose in milk by polarimetry (POL), high-performance liquid chromatography (HPLC), enzymatic assay (ENZ) and reductometry (RED) have been compared.
documento electrónico
JAMES OLIVER, Autor ; MARIANNE GABORIEAU, Autor ; EMILY HILDER, Autor ; PATRICE CASTIGNOLLES, Autor | 2013Carbohydrates partially liberated by acid hydrolysis of plant fiber can be separated by hydrophilic interaction liquid chromatography (HILIC), ligand-exchange liquid chromatography or other forms of LC with ion-exchange columns. However, the rob[...]
texto impreso
A simple automated extraction method for the determination of alkylphenolic compounds in fish tissue is reported. Pressurized fluid extraction is used to extract ground fish tissue, and the resulting extract is purified on aminopropyl silica ([...]
texto impreso
An automated reversed phase high performance liquidchromatography (W-HPLC) method is described, for the simultaneous analysis of water soluble [ascorbic acid (C). nicotinic acid, nicotinamide. folic acid, cyanocobalaniine (BIZ). and riboflavin ([...]
texto impreso
A unified extraction and quantification procedure based on stable isotope-dilution liquid chromatography/tandem mass spectrometry (LC/MS/MS) has been developed for the simultaneous determination of total homocysteine and folate (5-methyltetrahyd[...]
texto impreso
DESMARCHELIER AURÉLIEN, Autor ; GUILLAMON CUADRA MIRIAM, Autor ; THIERRY DELATOUR, Autor ; PASCAL MOTTIER, AutorAn isotope dilution liquid chromatography-electrospray ionization tandem mass spectrometry method for the simultaneous determination of melamine and cyanuric acid in cow’s milk(range of 0-0.3 mg/kg)and milk-based infant formulas(ranges of 0-0.[...]
documento electrónico
SUN, JING, Autor ; YANG, Autor ; HSIAOWAN LEE, Autor ; LIN WANG, Autor | 2015The simultaneous separation and determination of As(III), As(V), monomethylarsenic acid (MMA), dimethylarsenic acid (DMA), Cr(III), Cr(VI) and Cd(II) in water samples have been carried out by anion exchange liquid chromatography with inductively[...]
