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The analysis of highly hydrophilic, ionic, and polar compounds has been performed by HILIC-ESI-MS for the last few years. The use of low aqueous/high polar organic solvent content in HILIC separation mobile phase is almost ideal for ESI-MS detec[...]texto impreso
Atomic spectroscopy and mass spectrometry are important tools for identifying and quantifying trace elements in food products-elements that may be potentially beneficial or potentially toxic. The Determination of Chemical Elements in Food: Appli[...]Article : texto impreso
Paneles contrachapados para la construcción fabricados en cinco pantas de contrachapados fueron analizados para detectar los compuestos fenólicos y el fenol libre. Pequeñas muestras de contrachapados fueron molidos a polvo detexto impreso
FRANK VANHAECKE, Autor ; LIEVE BALCAEN, Autor ; DMITRY MALINOVSKY, Autor | 2009This article is intended as a tutorial review on the use of single-collector and multi-collector ICPMS for isotope ratio determination. The monitoring and quantification of both induced and natural differences in the isotopic composition of targ[...]Article : texto impreso
XIE, CHANGSHI, Autor ; RUDDICK, JOHN N.R., Autor |El duramen del abeto Douglas a menudo se vuelve muy oscuro cuando es tratado con preservantes de cobre amoniacal. La causa de esta coloración negra es desconocida. El examen de los extractos solubles en acetona presentes en el duramen del abeto[...]