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On-line derivatization with on-line coupled normal phase liquid chromatography-gas chromatography using the through oven transfer adsorption desorption interface: Application to the analysis of total sterols in edible oils
(Elsevier Science, 2012-07)
In the present work on-line derivatization is combined with on-line normal phase liquid chromatography-gas chromatography (NPLC-GC) to analyze total sterols in edible oils. The method uses the TOTAD interface with an ...
Improvements in cobalt determination by thermospray flame furnace atomic absorption spectrometry using an on-line derivatization strategy
(Elsevier Science BvAmsterdamHolanda, 2008)
Determination of fluoxetine in plasma by gas chromatography-mass spectrometry using stir bar sorptive extraction
(ELSEVIER SCIENCE BV, 2008)
This article presents a method employing stir bar sorptive extraction (SBSE) with in situ derivatization, in combination with either thermal or liquid desorption on-line coupled to gas chromatography-mass spectrometry for ...
On-line identification of minor flavones from sugarcane juice by LC/UV/MS and post-column derivatization
(Sociedade Brasileira de Química, 2009)
This work describes the on-line characterization of minor flavones from sugarcane (Saccharum officinarum) juice by high-performance liquid chromatography coupled to diode array UV detection and mass spectrometry (LC/UV/MS) ...
On-line solid phase extraction CZE for the simultaneous determination of lanthanum and gadolinium at picogram per liter levels
(Wiley VCH Verlag, 2009-08)
A non-specific on-line method is presented for the extraction and preconcentration of two rare earth elements using a microcartridge containing C18-derivatized silica particles prior to their analysis by CZE. The microcartridge, ...
Automatized flow-batch method for fluorescent determination of free glycerol in biodiesel samples using on-line extraction
(Elsevier Science, 2012-01)
An automatic method, based on flow-batch (FB), for determining glycerol in biodiesel was developed. The FB systems draw upon the useful features of flow, batch and multi-commutation approaches. The standards and samples ...
Multicomponent approach to silica-grafted peptide catalysts : A 3 D continuous-flow organocatalytic system with on-line monitoring of conversion and stereo-selectivity
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Química - PPGQCâmpus São Carlos, 2014-11-28)
The derivatization of organocatalysts with functional appendages suitable to anchor onto solid supports is usually achieved by stepwise syntheses. As an alternative to such a strategy, this work describes a one-pot approach ...