Solid-phase trapping of solutes for further chromatographic or electrophoretic analysis
JS Fritz, M Macka - Journal of Chromatography A, 2000 - Elsevier
Because of its simplicity, speed and effectiveness, solid-phase extraction (SPE) has become
the preferred technique for concentration of selected analytes prior to chromatographic or …
the preferred technique for concentration of selected analytes prior to chromatographic or …
Application of flowing stream techniques to water analysis: Part III. Metal ions: Alkaline and alkaline-earth metals, elemental and harmful transition metals, and …
In the earlier parts of this series of reviews [1, 2], the most relevant flowing stream techniques
(namely, segmented flow analysis, continuous flow analysis, flow injection (FI) analysis …
(namely, segmented flow analysis, continuous flow analysis, flow injection (FI) analysis …
Trends in preconcentration procedures for metal determination using atomic spectrometry techniques
M de Godoi Pereira, MAZ Arruda - Microchimica Acta, 2003 - Springer
Methods for metal preconcentration are often described in the literature. However, purposes
are often different, depending on whether the methods are applied in environmental, clinical …
are often different, depending on whether the methods are applied in environmental, clinical …
Preconcentration and separation with Amberlite XAD-4 resin; determination of Cu, Fe, Pb, Ni, Cd and Bi at trace levels in waste water samples by flame atomic …
A method for the preconcentration of Cu, Fe, Pb, Ni, Cd and Bi as their
diethyldithiocarbamate chelates was proposed using a column filled with Amberlite XAD-4 …
diethyldithiocarbamate chelates was proposed using a column filled with Amberlite XAD-4 …
Preconcentration and speciation of chromium in drinking water samples by coupling of on-line sorption on activated carbon to ETAAS determination
RA Gil, S Cerutti, JA Gásquez, RA Olsina, LD Martinez - Talanta, 2006 - Elsevier
An on-line flow injection (FI) preconcentration-electrothermal atomic absorption
spectrometry (ETAAS) method is developed for trace determination of chromium in drinking …
spectrometry (ETAAS) method is developed for trace determination of chromium in drinking …
Red-to-blue colorimetric detection of chromium via Cr (III)-citrate chelating based on Tween 20-stabilized gold nanoparticles
X Wang, Y Wei, S Wang, L Chen - Colloids and Surfaces A …, 2015 - Elsevier
In this work, a simple “red-to-blue” colorimetric method for highly sensitive and selective
determination of Cr (III) and Cr (VI) was presented, which was based on the aggregation of …
determination of Cr (III) and Cr (VI) was presented, which was based on the aggregation of …
Flame atomic absorption spectrometric determination of chromium (VI) by on-line preconcentration system using a PTFE packed column
AN Anthemidis, GA Zachariadis, JS Kougoulis… - Talanta, 2002 - Elsevier
A new, sensitive and robust time-based flow injection (FI) method for on-line
preconcentration and determination of ultra trace amounts of chromium (VI) by flame atomic …
preconcentration and determination of ultra trace amounts of chromium (VI) by flame atomic …
Voltammetric detection of Cr (VI) with disposable screen-printed electrode modified with gold nanoparticles
G Liu, YY Lin, H Wu, Y Lin - Environmental science & technology, 2007 - ACS Publications
Gold nanoparticle (Au-NP) enhanced voltammetric detection of Cr (VI) is developed for
determination of trace amounts of Cr (VI) in an acetate buffer media (pH 4.6). The Au-NPs …
determination of trace amounts of Cr (VI) in an acetate buffer media (pH 4.6). The Au-NPs …
Colorimetric determination of hexavalent chromium with ascorbic acid capped silver nanoparticles
X Wu, Y Xu, Y Dong, X Jiang, N Zhu - Analytical Methods, 2013 - pubs.rsc.org
A simple and sensitive colorimetric detection method for hexavalent chromium (Cr (VI)) was
described based on ascorbic acid (AA)-capped silver nanoparticles (AgNPs). The cross …
described based on ascorbic acid (AA)-capped silver nanoparticles (AgNPs). The cross …
Coupling on-line preconcentration by ion-exchange with ETAAS: a novel flow injection approach based on the use of a renewable microcolumn as demonstrated for …
J Wang, EH Hansen - Analytica chimica acta, 2000 - Elsevier
A novel way of exploiting flow injection/sequential injection (FIA/SIA) on-line ion-exchange
preconcentration with detection by electrothermal atomic absorption spectrometry (ETAAS) …
preconcentration with detection by electrothermal atomic absorption spectrometry (ETAAS) …