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Separation, preconcentration, and spectrophotometry in inorganic analysis
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The article was published on 2000-01-01 and is currently open access. It has received 297 citations till now. The article focuses on the topics: Spectrophotometry.read more
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Journal ArticleDOI
New hydrophilic 3-hydroxy-4-pyridinone chelators with ether-derived substituents: Synthesis and evaluation of analytical performance in the determination of iron in waters
Tânia Moniz,Luís Cunha-Silva,Raquel B. R. Mesquita,Joana L.A. Miranda,André M. N. Silva,Ana M. G. Silva,António O. S. S. Rangel,Baltazar de Castro,Maria Rangel +8 more
TL;DR: In this paper, three hydrophilic 3-hydroxy-4-pyridinone chelators containing ether-derived substituents were prepared by a more sustainable synthetic protocol that involves the use of microwave heating and commercially available amines.
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Ion pair-based liquid-phase microextraction combined with cuvetteless UV-vis micro-spectrophotometry as a miniaturized assay for monitoring ammonia in waters.
Sonia Senra-Ferreiro,Francisco Pena-Pereira,Isabel Costas-Mora,Vanesa Romero,Isela Lavilla,Carlos Bendicho +5 more
TL;DR: The proposed miniaturized method based on liquid-phase microextraction in combination with microvolume UV-vis spectrophotometry for monitoring ammonia in waters can be successfully applied to the determination of trace amounts of ammonia in several environmental water samples.
Journal ArticleDOI
Separation and Spectrophotometric Determination of Iron (III) and Mercury (II) via Cloud Point Extraction with New Azo-Derivative
TL;DR: In this paper, a coupled cloud point extraction (CPE) method was developed as prompt, easy and economical preconcentration technique for spectrophotometric determination of tiny amounts of Fe3+ and Hg2+ in real samples.
Journal ArticleDOI
Speciation Analysis of Osmium(VIII) and Osmium(IV) by UV‐VIS Spectrophotometry Using Quercetin as the Reagent
TL;DR: In this article, the UV-VIS spectrophotometric methods for the determination of Os(VIII) (as OsO4) and Os(IV)(as OsCl6 2− complex) in their mixtures were developed.
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Chitosan Functionalized with Carboxyl Groups as a Recyclable Biomaterial for the Adsorption of Cu (II) and Zn (II) Ions in Aqueous Media
A.M. Abu El-Soad,Giuseppe Lazzara,Mahmoud O. Abd El-Magied,Giuseppe Cavallaro,Jamelah S. Al-Otaibi,M.I. Sayyed,Elena G. Kovaleva +6 more
TL;DR: In this paper , the adsorption characteristics of chitosan modified with carboxyl groups (CTS-CAA) towards copper and zinc (II) ions have been tested.