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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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Simple, rapid and cost-effective method for the determination of zirconium in different samples
Mostafa M. Hamed,Refaat F. Aglan +1 more
TL;DR: In this paper, a quick, simple and cost-effective spectrophotometric procedure is investigated for microgram estimation of zirconium ions, which is based on the reaction of Zr(IV) with Mordant blue 2RL (MBR) as complexing agent.
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Comparative study for measurement of environmental natural radioactivity in the crude phosphoric acid using nuclear and non-nuclear techniques
TL;DR: In this paper, the authors developed a rapid and accurate alternative analytical method for measuring naturally occurring radioactivity in the crude phosphoric acid (CPA), which was achieved using nuclear method based on the non-destructive γ-ray measurements; and non-nuclear methods, including the ICP-OES and UV-vis colorimetric method.
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Sensitive fluorometric determination of gold in geological samples using fire assay pre-concentration coupled with microfluidic paper-based analytical device
Akram Hajinia,Tahereh Heidari +1 more
TL;DR: In this article, a micro fluidic paper-based analytical device (µPAD) was developed for analysis of gold in geological samples, which consists of different zones, including detection, pH adjustment, reaction and elution.
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Sensitive Assessment of Hexavalent Chromium Using Various Uniform and Non-uniform Color Space Signals Derived from Digital Images
TL;DR: In this paper, an aliquot sample containing Cr(VI) is reacted with diphenylcarbazide to yield a characteristic violet color, and the violet-colored product gave the red, green, and blue (RGB) intensities that are converted into ten uniform and non-uniform color spaces and two color difference parameters, which are used and compared here, for the first time, as analytical signaling tools for the assessment of hexavalent chromium.
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Novel approach for the determination of zirconium by solid-phase spectrophotometry
TL;DR: In this article, solid phase spectrophotometry was used to determine trace amounts of zirconium[IV] in water, soil, plant materials and ore samples, where Zr was sorbed in a dextran-type lipophilic gel as a complex with 2-benzothiazolylazo)-3-hydroxyphenol.