Sensitive adsorptive stripping voltammetric method for determination of trace concentration of titanium in the presence of chloranilic acid as a complexing agent

Grabarczyk, Malgorzata; Wasąg, Joanna

doi:10.1016/j.talanta.2015.03.002

Cited by 12 publications

(22 citation statements)

References 27 publications

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“…Introductory studies using Hg(Ag)FE and chloranilic acid in aceticacetate solution for determination Ti(IV) showed that it is possible to obtain a reduction peak of complex Ti(IV)-chloranilic acid at the differential pulse voltammogram [5]. Consequently, the optimization of experimental parameters in the determinations of titanium in Tytanit (such as pH and concentration of supporting electrolyte, chloranilic acid concentration, potential and time of accumulation) was performed.…”

Section: Resultsmentioning

confidence: 99%

“…Next, after sedimentation of resin the solution was transferred to a voltammetric cell and the measurements were performed by standard addition method. Previous studies have shown that the examined environmental samples do not contain titanium or its content is below the detection limit, so not obtained analytical signals [5]. All results were obtained in three replicates to ensure reproducibility.…”

Section: Analytical Applicationmentioning

confidence: 99%

“…The procedure exploit chloranilic acid like a complexing agent and mercury film silver base electrode (Hg(Ag)FE) as a working electrode [4]. During accumulation step Ti(IV)-chloranilic acid complexes were adsorbed onto electrode surface and next differential pulse voltammogram was recorded, while the potential was scanned from -0.4 V to -0.9 V, with the intensity of the obtained peak directly proportional to the concentration of Ti(IV) in the sample [5].…”

Section: Introductionmentioning

confidence: 99%

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The determination of titanium contained in Tytanit biostimulant employed to improve crops performance in natural environmental samples

Wasąg

Grabarczyk

2017

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<p>The purpose of this work was to determinate the amount of titanium in different environmental water samples spiked with crop biostimulant Tytanit. The measurements were conducted using adsorptive stripping voltammetry (AdSV). The titanium complex with chloranilic acid was accumulated on mercury film silver based electrode (Hg(Ag)FE) at the potential -0.3 V. The analysis of natural water samples enriched with Tytanit, collected in the eastern part ofPolandconfirms that this procedure is fast and essential for the determination of titanium in environmental water samples.</p>

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Section: Resultsmentioning

confidence: 99%

Section: Analytical Applicationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The determination of titanium contained in Tytanit biostimulant employed to improve crops performance in natural environmental samples

Wasąg

Grabarczyk

2017

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“…Chloranilic acid was also applied as a complexing agent in the AdSV determination of vanadium [52], uranium [53], and titanium [54] at the Hg(Ag)FE-c. Both procedures featured extremely low LODs of 0.01 nM V(V) (t acc = 90 s) and 0.05 nM (12 ng l −1 ) U(VI) (t acc = 120 s) and 3.5 nM Ti(IV) (t acc = 30 s), respectively.…”

Section: Adsorptive Stripping Voltammetrymentioning

confidence: 99%

Renewable silver amalgam film electrodes in electrochemical stripping analysis—a review

Bobrowski

Królicka

Bobrowski³

2016

J Solid State Electrochem

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The success of a voltammetric sensing procedure depends mainly on the proper choice of the working electrode. This is because its ability to accumulate the analyte determines the sensitivity of the method. The main criterion of the selection of the proper working electrode is the available potential window. A variety of conductive materials have been used for the preparation of working electrodes. Of these, two kinds of mercury electrodes-hanging mercury drop and film-were used because of their excellent voltammetric performance and, in particular, their high overpotential of hydrogen reduction. The significant drawbacks of mercury electrodes, however, are the toxicity of the material and the instability of liquid mercury films. To overcome these disadvantages, less toxic mercury-containing materials have been used, such as amalgams and amalgam film electrodes. This group includes renewable silver amalgam film electrodes used for electrochemical stripping sensing purposes. These electrodes have successfully been applied for anodic, adsorptive, cathodic, catalytic voltammetric, and potentiometric stripping determination of trace amounts of inorganic cations and organic compounds in various natural matrices. In this review, the electrode design, characteristics, and application of two kinds of renewable silver amalgam film electrodes are discussed in detail.

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“…The usage of mercury is negligibly small, but the performance of the electrode is as excellent as traditional HMDE. In the past, Hg(Ag)FE was successfully applied for determination of organic and inorganic analytes. In order to improve sensitivity of voltammetric methods used for Fe(III) determination different catalytic systems have been already applied.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive AdSV Method for Fe(III) Determination in Presence of Solochrome Violet RS on Renewable Amalgam Film Electrode

2019

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The new DP AdSV method for high sensitive Fe(III) determination in the presence of Solochrome Violet RS was developed. The use of an innovative renewable amalgam film electrode Hg(Ag)FE allowed to obtain high sensitivity and significantly minimize the mercury consumption. The best results were obtained for surface area of Hg(Ag)FE equal to 11.8 mm2. Instrumental parameters were optimized. The optimal results were obtained using differential pulse technique for the following values: sampling and waiting time ts=tw=10 ms, step potential Es=5 mV, pulse amplitude ΔE=50 mV. Measurements were conducted in 0.05 M acetate buffer (pH 5.6), the concentration of SVRS was equal to 5 μM. Deposition step was carried out at the potential −400 mV for 20 s. Calculated detection limit for 40 s preconcentration time was equal to 1.4 nM (78 ng L−1). The influence of the common in environment, organic and inorganic interferences was studied. The developed method for Fe(III) determination was successfully applied and validated by investigation of certified reference material SPS‐SW2 Batch 118 and recovery of Fe(III) from various spiked samples as snow, tap water and bottom sediments. The repeatability (for 50 nM of Fe(III)) of the developed method expressed as CV was equal 3.1 % (n=5).

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Sensitive adsorptive stripping voltammetric method for determination of trace concentration of titanium in the presence of chloranilic acid as a complexing agent

Cited by 12 publications

References 27 publications

The determination of titanium contained in Tytanit biostimulant employed to improve crops performance in natural environmental samples

The determination of titanium contained in Tytanit biostimulant employed to improve crops performance in natural environmental samples

Renewable silver amalgam film electrodes in electrochemical stripping analysis—a review

Highly Sensitive AdSV Method for Fe(III) Determination in Presence of Solochrome Violet RS on Renewable Amalgam Film Electrode

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