Journal ArticleDOI
Speciation of Cr(III) and Cr(VI) by nanometer titanium dioxide micro-column and inductively coupled plasma atomic emission spectrometry
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In this paper, a sensitive and selective method has been developed for the speciation of Cr(III) and Cr(VI) in natural water using a nanometer titanium dioxide micro-column (20 mm×3.0 mm i.d.).About:
This article is published in Spectrochimica Acta Part B: Atomic Spectroscopy.The article was published on 2003-09-26. It has received 96 citations till now. The article focuses on the topics: Inductively coupled plasma atomic emission spectroscopy & Inductively coupled plasma.read more
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Nanoadsorbents: classification, preparation, and applications (with emphasis on aqueous media).
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Nanometer titanium dioxide immobilized on silica gel as sorbent for preconcentration of metal ions prior to their determination by inductively coupled plasma atomic emission spectrometry.
Yan Liu,Pei Liang,Li Guo +2 more
TL;DR: A new method using a microcolumn packed with immobilized nanometer TiO(2) as sorbent has been developed for the preconcentration of trace amounts of Cd, Cr, Cu and Mn prior to their determination by inductively coupled plasma atomic emission spectrometry (ICP-AES).
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Removal of chromium (VI) from aqueous solutions using Lewatit FO36 nano ion exchange resin
TL;DR: In this paper, the removal of the chromium (VI) ion from aqueous solutions with the Lewatit FO36 ion-exchange resin is described at different conditions, including the effects of adsorbent dose, initial metal concentration, contact time and pH.
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New Materials for Solid‐Phase Extraction of Trace Elements
Valfredo Azevedo Lemos,Leonardo S. G. Teixeira,Marcos A. Bezerra,Antonio Celso Spinola Costa,Jacira Teixeira Castro,Luiz Augusto Martins Cardoso,Djane Santiago de Jesus,Elenir Souza Santos,Patrícia Xavier Baliza,Luana Novaes Santos +9 more
TL;DR: In this paper, the development of new sorbents and their application in preconcentration methods for determination of trace elements is a subject of great interest, and several analytical methods involving the preparation and use of new solid phase materials are discussed.
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Ultrasound assisted-deep eutectic solvent based on emulsification liquid phase microextraction combined with microsample injection flame atomic absorption spectrometry for valence speciation of chromium(III/VI) in environmental samples
Erkan Yilmaz,Mustafa Soylak +1 more
TL;DR: The chromium concentration in DES rich phase (extraction phase) was determined by using microsample injection flame atomic absorption spectrometer (FAAS) and the detection limit (LOD), the quantification limit (LOQ), preconcentration factor and relative standard deviation were found as 5.5µgL(-1), 20 and 6%, respectively.
References
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Small-particle research: physicochemical properties of extremely small colloidal metal and semiconductor particles
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The speciation of trace elements in waters.
TL;DR: The importance of speciation measurements and the various factors leading to changes in speciation are discussed in this review.
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Determination of chromium(III) and chromium(VI) in water using flow injection on-line preconcentration with selective adsorption on activated alumina and flame atomic absorption spectrometric detection
TL;DR: In this paper, a method for the species-selective determination of chromium (III) and chromium(VI) in water samples by flame atomic absorption spectrometry using online preconcentration on a microcolumn packed with activated alumina (acidic form) has been developed.
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The role of speciation in analytical chemistry
Agata Kot,Jacek Namiesnik +1 more
TL;DR: In this paper, the main types and areas of application of speciation analysis, and the use of sequential extraction in speciation studies are described, along with examples of their applications and the usage of various analytical techniques.
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Immobilized Cyanobacteria for Online Trace Metal Enrichment by Flow Injection Atomic Absorption Spectrometry
TL;DR: In this paper, the authors used an on-line flow injection atomic absorption spectrometry system to determine the degree of metal binding depending on the pH of the solution and the breakthrough capacity was determined from the breakthrough curve.