Separation, preconcentration and speciation of metal ions by solid phase extraction

AR Türker - Separation & Purification Reviews, 2012 - Taylor & Francis
This review presents the most recent applications of solid phase extraction for the
separation, preconcentration and speciation of metals, metalloids, and organometals. The …

Recent developments in solid phase extraction in elemental speciation of environmental samples with special reference to aqueous solutions

D Das, U Gupta, AK Das - TrAC Trends in Analytical Chemistry, 2012 - Elsevier
The literature on the use of solid-phase extraction (SPE) as a tool for trace-element
speciation is highly significant. Among methods of pretreatment, SPE is unique because of …

Preparation of chromium (III) ion-imprinted polymer based on azo dye functionalized chitosan

NH Elsayed, M Monier, RAS Alatawi, MA Albalawi… - Carbohydrate …, 2022 - Elsevier
The main aim of this work is the preparation of azo dye modified chitosan that was
subsequently used in the ion-imprinting of Cr (III) ions to finally obtain ion-selective sorbent …

Tea-industry waste activated carbon, as a novel adsorbent, for separation, preconcentration and speciation of chromium

C Duran, D Ozdes, A Gundogdu, M Imamoglu… - Analytica Chimica …, 2011 - Elsevier
Activated carbon was produced from tea-industry wastes (TIWAC) and employed as a low
cost and effective solid phase material for the separation, preconcentration and speciation of …

Photo-oxidation of Cr (III)− citrate complexes forms harmful Cr (VI)

R Dai, C Yu, J Liu, Y Lan, B Deng - Environmental science & …, 2010 - ACS Publications
Photo-oxidation is a potential pathway for the transformation of Cr (III) to Cr (VI) in natural
environments. In this study, the Cr (III)− citrate complex (Cr (III)− cit) was prepared and its …

3D printed device for the automated preconcentration and determination of chromium (VI)

C Calderilla, F Maya, V Cerdà, LO Leal - Talanta, 2018 - Elsevier
A 3D printed device for the fully automated disk-based solid-phase extraction (SPE) of Cr
(VI) from water samples has been fabricated. The compatibility of the use of organic solvents …

[HTML][HTML] Enhanced removal of Cr (III)-EDTA chelates from high-salinity water by ternary complex formation on DETA functionalized magnetic carbon-based adsorbents

J Wang, Y Chen, T Sun, A Saleem, C Wang - … and Environmental Safety, 2021 - Elsevier
A novel amino-functionalized magnetic adsorbent (Fe 3 O 4@ C@ DETA) was developed for
adsorption of Cr (III) and Cr (III)-EDTA from wastewater. Fe 3 O 4@ C@ DETA were …

Synthesis of polyethyleneimine capped carbon dots for preconcentration and slurry sampling analysis of trace chromium in environmental water samples

Y Liu, J Hu, Y Li, HP Wei, XS Li, XH Zhang, SM Chen… - Talanta, 2015 - Elsevier
Carbon dots capped with polyethyleneimine (CD-PEI) were synthesized and applied in
selective separation and preconcentration of trace Cr (VI). Dispersed particle extraction …

Fluorescent silver nanoclusters for ultrasensitive determination of chromium (VI) in aqueous solution

JR Zhang, AL Zeng, HQ Luo, NB Li - Journal of hazardous materials, 2016 - Elsevier
In this work, a simple and sensitive Cr (VI) sensor is proposed based on fluorescent
polyethyleneimine-stabilized Ag nanoclusters, which allows the determination over a wide …

Speciation of chromium in water samples and lettuce extracts in the unified bioaccessibility method (UBM) saliva solution by vortex assisted-dispersive solid phase …

Ş Tokalıoğlu, S Shahir, BF Şenkal, ET Akgül - Journal of Food Composition …, 2023 - Elsevier
In this study, a new sulfonamide based polymeric adsorbent (5ATT-CSPS) was prepared
with reaction between 5-Amino-1, 3, 4-thiadiazole-2-thiol and chlorosulfonated polystyrene …