Spectrophotometric Determination of Trace Amount of Copper(II) Ion Based on Complexation with an Anthraquinone Derivative

Nejati-Yazdinejad, Massoud

doi:10.2116/analsci.22.617

Cited by 20 publications

(6 citation statements)

References 24 publications

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“…Spectrophotometric studies: The reaction mechanism of the present method was reported as earlier 27 . Job's method of continuous variation and the molar ratio method were applied to ascertain the stoichiometric composition of the complex.…”

Section: Methodsmentioning

confidence: 98%

A Simple Flow Injection Spectrophotometric Procedure for Direct Determination of Copper(II) in Environmental Samples

Akmeşe¹,

Aydin²,

Asan³

2014

Asian J. Chem.

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A new simple, rapid and sensitive flow-injection spectrophotometric detection method has been developed for the on-line determination of copper(II) in environmental water samples. The method is based on the measurement of the absorbance of the coloured complex formed by copper(II) with the Alizarin Red S (3,4-dihydroxy-9,10-dioxo-2-anthracenesulfonic acid sodium salt) in an acidic medium. The optimum conditions for the reaction of Cu(II) with Alizarin Red S is studied and the complex is selectively monitored at λmax 510 nm. With the reagent carrier solvent (3.5 × 10-5 M Alizarin Red S solution and 0.1 M acetate buffer, pH 5.0) flow-rate of 1 mL min-1. The calibration graph was linear in the Cu(II) concentration range 2-110 µg L-1 with the detection limit of 0.6 µg L-1 (RSD = 3.3 %, n = 6) was obtained at a sampling rate of 80 sample h-1. The detailed study of various interferences confirmed the high selectivity of the developed method. The proposed method was successfully applied to determination of copper(II) in real samples including river water and sea water. The accuracy of the method was demonstrated by the analysis of standard reference material MBH-C31XB20.

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Section: Methodsmentioning

confidence: 98%

A Simple Flow Injection Spectrophotometric Procedure for Direct Determination of Copper(II) in Environmental Samples

Akmeşe¹,

Aydin²,

Asan³

2014

Asian J. Chem.

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“…Alizarin Red S is an anthraquinone derivative used to identify calcium in tissue sections or whole mount embryos, where tissue calcium forms an AR-S-calcium complex in a chelation process, producing a birefringent end product (Nejati-Yazdinejad, 2006). The reaction is not strictly specific for calcium, since magnesium, manganese, barium, strontium, and iron may interfere, but these elements usually do not occur in sufficient concentration to interfere with the staining (Lievremont et al, 1982).…”

Section: Characterization Of (Ectopic) Mineralization Phenotypesmentioning

confidence: 99%

Zebrafish models for ectopic mineralization disorders: practical issues from morpholino design to post-injection observations

et al. 2013

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Zebrafish (ZF, Danio rerio) has emerged as an important and popular model species to study different human diseases. Key regulators of skeletal development and calcium metabolism are highly conserved between mammals and ZF. The corresponding orthologs share significant sequence similarities and an overlap in expression patterns when compared to mammals, making ZF a potential model for the study of mineralization-related disorders and soft tissue mineralization. To characterize the function of early mineralization-related genes in ZF, these genes can be knocked down by injecting morpholinos into early stage embryos. Validation of the morpholino needs to be performed and the concern of aspecific effects can be addressed by applying one or more independent techniques to knock down the gene of interest. Post-injection assessment of early mineralization defects can be done using general light microscopy, calcein staining, Alizarin red staining, Alizarin red-Alcian blue double staining, and by the use of transgenic lines. Examination of general molecular defects can be done by performing protein and gene expression analysis, and more specific processes can be explored by investigating ectopic mineralization-related mechanisms such as apoptosis and mitochondrial dysfunction. In this paper, we will discuss all details about the aforementioned techniques; shared knowledge will be very useful for the future investigation of ZF models for ectopic mineralization disorders and to understand the underlying pathways involved in soft tissue calcification.

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“…The spectrophotometric determination of metal ions using ARS and other anthraquinone derivatives continued to hold interest to scientists [16,17]. It is well known that the ease of formation of a complex with dye, thus stability of the complex decides its applicatory importance.…”

Section: Introductionmentioning

confidence: 99%

A Developed Spectrophotometric Method for Thorium Determination using Alizarin Red S Dye in Different Types of its Bearing Rocks

2015

IJSR

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The spectrophotometric determination of thorium from its different bearing rock types such as Thorite, Trachyte, and Ring complexes using the well known chromogenic alizarin red S (ARS) dye was proposed in the present work. Optimization of the formed thorium-alizarin red S complex was performed by studying several parameters such as different acid media, suitable buffer pH, dye concentration, duration time of the formed complex, and thorium concentration (calibration curve). The optimized method was applied to different rock types bearing thorium as well as standard phosphate (2). Interference due to major oxides was treated by partial decomposition of rock samples, which minimized their concentrations together with complete leaching of thorium facilitated the accurate determination of thorium in those samples. On the other hand, interference due to high uranium concentrations was overcome by its selective extraction using trioctylamine in xylene. Beer's law was obeyed from a concentration of 1 µg ml -1 till 80 µg ml -1 with a molar absorptivity value of 0.42 x 10 3 l mol -1 cm -1 . The percentage relative standard deviation (%RSD)for 10 replicate measurements of 10 µg ml -1 thorium was 2.23%.

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Spectrophotometric Determination of Trace Amount of Copper(II) Ion Based on Complexation with an Anthraquinone Derivative

Cited by 20 publications

References 24 publications

A Simple Flow Injection Spectrophotometric Procedure for Direct Determination of Copper(II) in Environmental Samples

A Simple Flow Injection Spectrophotometric Procedure for Direct Determination of Copper(II) in Environmental Samples

Zebrafish models for ectopic mineralization disorders: practical issues from morpholino design to post-injection observations

A Developed Spectrophotometric Method for Thorium Determination using Alizarin Red S Dye in Different Types of its Bearing Rocks

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