Determination of zinc by square-wave adsorptive stripping voltammetry using alizarin as a chelating agent

Al-Ghamdi, Ahmad

doi:10.1016/j.jscs.2009.12.002

Cited by 15 publications

(4 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Alizarin red S (1, 2-dihydroxy-9, 10-anthraquinone-3-sulfonate, ARS) is an anthraquinone dyestuff, which is commonly used to detect metal ions because of its vicinal diols and anthraquinone compositions [1][2][3]. With the rapid development of electrochemistry [4][5][6][7][8][9], various kinds of new materials including ARS have been used more frequently than before [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Development of a poly(alizarin red S)/ionic liquid film modified electrode for voltammetric determination of catechol

Zhang¹,

Pan²,

Zhang³

et al. 2014

Electrochimica Acta

View full text Add to dashboard Cite

a b s t r a c tA novel modified electrode for voltammetric catechol determination was fabricated by electroploymerization of alizarin red S (ARS) onto a glassy carbon electrode (GCE) in one kind of room-temperature ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate, BMIMBF 4 ). The polymeric ARS/ionic liquid (PARS/BMIMBF 4 ) film modified electrode was characterized by using scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and electrochemical methods. The EDX, XPS and FTIR results indicated that PARS/BMIMBF 4 film was successfully obtained. Compared with the GCE modified by electroploymerization of ARS in aqueous solution, the GCE modified by electroploymerization of ARS in BMIMBF 4 showed smoother and more compact morphology for coating and better electroanalytical properties. Given the combined electrochemical activity of PARS and excellent conductivity of BMIMBF 4 , the PARS/BMIMBF 4 /GCE has been successfully used for catechol determination by differential pulse voltammetry (DPV) with a linear range of 0.10 to 500 M. The sensitivity and detection limit are 42 nA/M and 0.026 M, respectively. The PARS/BMIMBF 4 modified electrode was successfully applied to the determination of catechol in real water samples and may serve as a simple but high-performance sensor for the determination of some environmental pollutants.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of a poly(alizarin red S)/ionic liquid film modified electrode for voltammetric determination of catechol

Zhang¹,

Pan²,

Zhang³

et al. 2014

Electrochimica Acta

View full text Add to dashboard Cite

show abstract

“…This peak corresponds to the reduction process of Zn(II) to Zn(0). The absence of an anodic peak at the reverse scan for this cathodic peak confirmed the irreversible nature of the evaluated reduction process . The shoulder observed at −0.770 V in the given cyclic voltammogram is more probably resulted from the cathodic reduction of the azomethine group of the imidazole moiety in the free molecule.…”

Section: Resultsmentioning

confidence: 99%

Experimental and Theoretical Investigations on Quadratic and Cubic Optical Nonlinearities of Cu(II), Co(II), Cd(II), Hg(II), Mn(II), and Zn(II) Transition Metal Coordination Complexes

Belahlou,

Karakas,

Waszkowska

et al. 2023

Crystal Growth & Design

View full text Add to dashboard Cite

A series of Cu(II), Co(II), Cd(II), Hg(II), Mn(II), and Zn(II) complexes (1−6) of (1-methyl-1H-imidazol-2yl)(phenyl)methanone ligand (L) have been prepared and structurally characterized using single-crystal X-ray diffraction. A study of electrochemical properties has been conducted by cyclic voltammetry. Transition metal coordination complexes are known to have promising optical nonlinearity behavior. So, to explore the quadratic and cubic nonlinear optical (NLO) phenomena of title transition metal coordination structures, several experimental and theoretical investigations have been introduced, and their results have been evaluated. The second-harmonic generation (SHG) and third-harmonic generation (THG) techniques by means of the Maker fringe setup have been performed to analyze and evaluate the quadratic (χ (2) ) and cubic (χ (3) ) susceptibilities on thin films of 1−6 at 1064 nm. The maximum one-photon absorption (OPA) wavelengths (λ max ) of 1−6 have been measured utilizing UV−vis spectral analysis. To acquire the electric dipole moment (μ), static dipole polarizability (α), and first hyperpolarizability (β) values of 1−6, we have taken advantage of the density functional theory (DFT) at the B3LYP level. The time-dependent Hartree−Fock (TDHF) that is known as a very productive quantum mechanical procedure has been chosen to achieve the static second hyperpolarizabilities (γ) and dynamic α, β, γ, χ (2) , and χ (3) for 1−6. The measured data on the χ (2) , χ (3) , and (λ max ) results for 1−6 have been confronted with their corresponding calculated values from the TDHF approach and the configuration interaction (CI) method including all doubly occupied molecular orbitals (MOs). Our calculation results of microscopic dipole polarizabilities and hyperpolarizabilities for 1−6 have also been crosschecked with similar structures given in the previous works and outcomes of several reference samples. The second-and third-order NLO efficiencies produced theoretically and experimentally of the title materials have been outlined, revealing that the complexes with closed-shell electronic states have turned out increments of second-and thirdorder susceptibility responses. This work has also elucidated that the substitutions of metallic cations (Cu 2+ , Co 2+ , Cd 2+ , Hg 2+ , Mn 2+ , and Zn 2+ ) have created favorable impacts upon χ (2) and χ (3) conclusions. Furthermore, we have surveyed the first and second frontier MOs and their energy gap values via DFT.

show abstract

“…Zinc or magnesium is liberated from fibers in the next stage because cysteine groups in wool reduce them. In this case, zinc or magnesium is substituted for aluminum (Al-Ghamdi, 2009). It is important to note that alizarin and purpurin create a water-insoluble coordination complex with aluminum, which precipitates in the dyebath (Clark, 2016).…”

Section: Resultsmentioning

confidence: 99%

Eco-friendly single bath dyeing of wool yarns with extracted cochineal dye: optimization and additives effect

Imani

Gharanjig

Ahmadi

2022

PRT

View full text Add to dashboard Cite

Purpose The purpose of this study is simultaneous dyeing and mordanting of wool yarns with extracted cochineal dye and aluminum sulfate to the reduction of consuming energy, water and time. Design/methodology/approach The dyeing process was optimized using the response surface methodology (RSM) approach. pH, dyeing duration and the presence of additives were chosen as variables and the color strength of samples as a response. The color characteristics and fastness attributes of samples dyed in the best condition were evaluated and compared to pre-mordant dyeing outcomes on wool yarns. Findings The best conditions for deep dyeing wool with cochineal dye were as follows: pH 2.5, time 110 min and the ratio of aluminum: additives 1:0 at 100 °C. Color strength of dyed wool yarns by one-bath and pre-mordant dyeing methods were approximately the same. Wool yarns can dye to the on-bath dyeing method such that the dyed samples have similar color strength and fastness properties to pre-mordant dyeing. Social implications Wool dyeing processes that use one-bath dyeing consume less water and produce fewer effluents. As a result, this strategy conserves water and energy for a higher quality of life. The findings of this study, in general, aid environmental protection. Originality/value A novel one-bath process for dyeing wool with cochineal dye at heavy depths is introduced. RSM was used to optimize the procedure and determine effective parameters on the color strength of dyed wools. Using extracted cochineal dye and aluminum sulfate in a simultaneous dyeing technique, good color fastness qualities on wool fibers were achieved.

show abstract

Determination of zinc by square-wave adsorptive stripping voltammetry using alizarin as a chelating agent

Cited by 15 publications

References 10 publications

Development of a poly(alizarin red S)/ionic liquid film modified electrode for voltammetric determination of catechol

Development of a poly(alizarin red S)/ionic liquid film modified electrode for voltammetric determination of catechol

Experimental and Theoretical Investigations on Quadratic and Cubic Optical Nonlinearities of Cu(II), Co(II), Cd(II), Hg(II), Mn(II), and Zn(II) Transition Metal Coordination Complexes

Eco-friendly single bath dyeing of wool yarns with extracted cochineal dye: optimization and additives effect

Contact Info

Product

Resources

About