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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
Spectrophotometric Determination of Sulfadiazine via Diazotization and Coupling Reaction - Application to Pharmaceutical Preparations
TL;DR: In this paper, a simple, accurate and sensitive spectrophotometric method has been developed for the quantitative determination of sulfadiazine (SDz) in both pure and its dosage forms.
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Leaching and recovery of rare earth elements from altered alkaline granite rock from nusab el-balgum area, south western desert, egypt.
TL;DR: Taysser A. Lashen as mentioned in this paper, Saeyda A. Mohamed 2, Mohamed F. Cheira* 1, Doaa I. Zaki 1 and Eman M. Allam 1.
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Preconcentration of Zn, Cu, and Ni Ions from Coffee Infusions via 8-Hydroxyquinoline Complexes on Graphene Prior to Energy Dispersive X-ray Fluorescence Spectrometry Determination.
TL;DR: The proposed method was successfully applied to determination of Ni, Cu, and Zn in coffee infusions and accuracy and repeatability of the proposed procedure were confirmed by the standard addition method and compared to the results obtained by ICP-OES technique.
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Preconcentration of metal ions on aluminum oxide modified with tiron
Abstract: It is found that iron(III), titanium(IV), vanadium(V), copper(II), lead(II), and zinc(II) ions are adsorbed on aluminum oxide modified with Tiron. The adsorption of iron(III) is accompanied by the violet coloration of the adsorbent (560 nm), which indicates the formation of a 1: 2 complex on the adsorbent surface; copper forms a 1: 1 yellowish green complex (430 nm). The group preconcentration of metal ions on this adsorbent in a dynamic mode is possible; the preconcentration rate is 2.5 × 103. The method for the determination of metal ions is proposed based on the adsorption recovery of the elements followed by the direct determination by X-ray fluorescence spectroscopy on the adsorbent surface.
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A selective flotation-spectrophotometric method for the determination of nickel using dimethylglyoxime
TL;DR: In this article, a simple and selective method for separation and preconcentration of nickel has been developed based on the flotation of a complex of Ni and dimethylglyoxime (DMG) at the aqueous solution-nhexane interface.