Showing papers on "Supporting electrolyte published in 2023"

The First Electroanalytical Study Of Umifenovir (Arbidol) Used As A Potential Antiviral Drug For The Treatment of SARS-CoV-2: A Voltammetric Quantification On The Boron-Doped Diamond Electrode By Using Anionic Surfactant Media

Abstract: In this work, an electroanalytical procedure for sensing umifenovir (arbidol) by square wave adsorptive stripping voltammetry (SW-AdSV) was developed utilizing an anodically pretreated boron-doped diamond electrode. Measurements of umifenovir using cyclic voltammetry with phosphate buffer solution (PBS, 0.1 M, pH 2.5) revealed irreversible behaviour, adsorption-controlled as well as an ill-defined (+1.13 V, PA1) and a well-defined (+1.47 V, PA2) two oxidation peaks. Umifenovir oxidations depend critically on supporting electrolytes and pH. The second oxidation peak (PA2) current of the umifenovir was enhanced by adding sodium dodecyl sulfate (SDS, anionic surfactant) in the chosen supporting electrolyte. Umifenovir was quantified using its second oxidation peak (PA2) at about +1.39 V. Using the optimized condition, the oxidation peak current of PA2 showed a linear relationship for umifenovir determination in the concentration range from 0.005 to 1.0 μg ml−1 (9.73 × 10−9−1.95 × 10−6 M), with a detection limit of 0.0014 μg ml−1 (2.72 × 10−9 M) in PBS (PH 2.5) with SDS. Finally, the developed approach was successfully utilized to determine umifenovir in the pharmaceutical formulation and urine samples. To the best of our knowledge, this is the first electroanalytical approach for voltammetric sensing of umifenovir.

Metal nanocomposites-based electrochemical sensor for the detection of vanillin (food additives): Experimental and theoretical approach

Abstract: A sensitive and selective electrochemical sensor was developed to detect Vanillin using Mn/Zn/V (MZV) nanocomposites. MZV nanocomposites were synthesized by modified Sol-gel technique and characterized by FT-IR, UV-VIS, SEM, and XRD techniques. Cyclic Voltammetry, Linear Sweep Voltammetry, and Differential Pulse Voltammetry experiments were performed on a three-electrode-based electrochemical system. A computational study (DFT) was used to support experimental data and understand chemistry at the working electrode/electrolyte interface. The specially designed working electrode showed a good sensing ability toward Vanillin in real and reference samples. The working electrode displays a linear response between the current density and concentration of Vanillin (20–120 μM) with a lowest detection limit of 120 μM. The characteristic oxidative (0.051 V) and reductive peak (0.47 V), formal potential (0.270 V), open circuit potential (−570 mV), current density, and Emid potential (0.025 V) of Vanillin help in qualitative estimation. Storage and stability of working electrodes were tested for 60 days.

Voltammetric Detection of Ascorbic Acid at Organic Conducting Polymers Electrodes and Flow Injection Analysis

Abstract: In this paper, a sensitive and rapid modified electrode for the determination of Ascorbic Acid (AA) is proposed. In this study, active compound AA was determined from commercial drug form based on electrochemical oxidation properties at various conducting polymer electrodes by voltammetric methods. Electrodes modified by the electrodeposition of conducting organic polymers such as poly(3-methylthiophene, PMT), polypyrrole (PPY) and polyaniline (PAN) were used as chemical sensors for voltammetric analysis and flow injection detection of AA. The electrochemical behavior of AA at conducting polymer electrodes was compared and the effects on behavior of electrolyte type and its pH and the film thickness were systematically examined. The results showed that the proposed modified surface catalyzes the oxidation of AA. Electrocatalytic efficiency decreases in order of PMT > PPY > PAN. Voltammetric peak positions were affected by the nature of the electrolyte and its pH. Also, the effect of increasing film thickness was to observe increased peak heights for oxidation potential of AA. The best results for the determination of AA were obtained by DPV in Na2SO4 (pH 2.0) and PMT electrodes. Polymer coated electrodes were also used in an amperometric detector for flow injection analysis of AA. The responses of the polymer electrode were 5–15 times larger as compared to those of bare platinum. PMT showed improved performance as an amperometric detector for flow injection analysis systems over other types of polymer electrodes. Detection limits as low as 1×10−9 M were achieved using the PMT, compared to 1×10−6 M using platinum electrodes.

Electrocatalytic Multicomponent Transformation of Aldehyde, 5‐Amino‐3‐methyl‐1‐phenylpyrazole and Dimedone: An Efficient Protocol for Substituted Pyrazolo[3,4‐ b ]quinolines

Abstract: A convenient, rapid and electrochemical one-pot protocol was developed successfully for the preparation of pyrazolo[3,4-b]-quinoline derivatives. The reaction is carried out in a 25 mL three neck flask equipped with graphite electrode as anode and iron electrode as cathode (electrode area of 1 cm2) with sodium bromide as supporting electrolyte at room temperature in ethanol. Fourteen pyrazolo-[3,4-b]-quinoline derivatives were synthesized by use of various aldehyde (including aryl aldehydes and aliphatic aldehydes), dimedone and 5-amino-3-methyl-1-phenylpyrazole as substrates in good yields (76–86 %) with a constant current of 30 mA after 0.14 F/mol of electricity passed. All aimed products were characterized by IR, 1H NMR and HRMS. Notably, the presented method features ecologically sound, simple experimental procedure and good yields.

Apparent and true mineralization during combined electro‐oxidation and electro‐coagulation on stainless steel anode

Abstract: Present study is a novel attempt to experimentally verify that electrochemical treatment of organic pollutants on stainless steel (SS) anode is a combination of electro-oxidation (EO) and electro-coagulation (EC) with quantitative estimation of individual contributions of the two mechanisms. Target organic pollutants, metformin HCl (MET-HCl) and lamotrigine (LAM), were electrochemically treated with SS anode for this purpose. Experiments were designed using central composite rotatable design (CCRD) to assess the effect of current density (CD) and supporting electrolyte concentration (SEC) as independent process parameters. Under all conditions, the process was experimentally verified to be a combination of EO and EC. For MET-HCl, true mineralization (TM) as a result of EO contribution varied between 50.13% and 66.64%. EO contribution and resulting TM for LAM ranged from 37.5% to 61.83%. EC contributed 30.6%–31.84% towards MET-HCl remediation causing the TOC to be transferred from the liquid to the sludge produced (SP). EC contribution was 23.68%–35.89% for LAM remediation. Thus, apparent mineralization (AM), the sum of EO and EC contributions, ranged from 80.63% to 97.79% for MET-HCl and 61.18% to 96.82% for LAM. Process parameters were statistically optimized using response surface methodology (RSM) to simultaneously maximize TM and AM with minimal energy consumption and maximal current efficiency. The optimized conditions were 0.83 mA/cm2 CD and 86.66 ppm SEC for MET-HCl. The corresponding values were 1.31 mA/cm2 CD and 79.51 ppm SEC for LAM.

Oxidation of 4-Methylbenzyl Alcohol by In-situ Generated Hypochlorous Acid Using NaCl AS Electro Catalytic Mediator: A Novel Biphasic Electrolysis Method Approach

Abstract: The objective of the present investigation is two-fold Procedure. Firstly to study the indirect electrochemical selective oxidation of 4-methylbenzylalcohol by biphasic electrolysis to get optimum operation conditions, and secondly to obtain reliable data on yields and selectivity of the corresponding parameters. Many electro-organic protocols focus on the use of a three-electrode setup for constant potential conditions. Although these experimental setups offer the possibility of achieving the selectivity of desired transformation by specific adjustment of the electric potential, they exhibit significant disadvantages over a constant current two-electrode setup. On an undivided beaker-type cell, optimization studies were carried out. The various 4- methylbenzyl alcohol parameters influencing the reactions, such as current density, mediator, acid, and solvent, have been investigated. A comparison study was conducted for the chemical and electrochemical methods. Under biphasic electrolysis, the chloride-containing mediator produced 96% of the desired 4-methylbenzaldehyde. The existence of High Quality of the Yield is confirmed by HPLC analysis. Scheme 2 depicts the likely mechanism for the chloride oxidation system. The biphasic electrolysis procedure has several advantages, including easy product separation, a simple work-up, room temperature reaction conditions, and the ability to reuse the electrolyte. The reactions are carried out under mild conditions using a simple electrochemical setup and offer several advantages such as the absence of secondary products, low production costs, high conversion and yield.

Square-Wave Voltammetric Detection of Zn(II) and Cd(II) with a Graphite/Carbon Paste Electrode Decorated with 2-Hydroxy-1,4-naphthoquinone

Abstract: The concentration of heavy metals (HMs) in rivers continues to increase beyond regional background values, thereby impacting human health and disrupting ecological balance. In this context, an electrochemical sensing device to detect HM ions Zn(II) and Cd(II) in river waters is herein reported. It consists of graphite (G) decorated with 2-hydroxy-1,4-naphthoquinone (HNFQ) incorporated in a carbon paste electrode (CPE), and the G surface modification with HNFQ was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronocoulometry (CC). The electroanalytical behavior and detection of Zn(II) and Cd(II) were evaluated by square-wave voltammetry (SWV) and CV. The developed sensor exhibits excellent stability, reproducibility, repeatability, and selectivity in the presence of interferents. The optimal G/HNFQ-CPE sensitivity is reflected by the limits of detection (LOD, 0.28 ± 0.02 μmol L–1 for Zn and 0.21 ± 0.03 μmol L–1 for Cd), limits of quantification (LOQ, 0.95 ± 0.09 μmol L–1 for Zn and 0.70 ± 0.11 μmol L–1 for Cd), and linear working range (0.47–93.8 μmol L–1). DFT calculations were performed to obtain molecular insights into the electrode/electrolyte solution interface. Finally, the sensor was validated using the atomic absorption technique, which places G/HNFQ-CPE as a promising electrode for Zn(II) and Cd(II) SWV detection.

Disposable Pencil Lead as an Electrochemical Transducer for Monitoring Catechol in River and Tap Water

Abstract: A cheap and disposable pencil graphite electrode (PGE) was developed by the incorporation of amine groups (Am-PGE-1). A further improvement in the performance was observed when the aminated electrode (Am-PGE-1) was activated by applying a negative potential scan (Am-PGE-2). The electrochemical transport properties were evaluated through cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The Nyquist plot showed a reduced charge transfer resistance value of 24.3 Ω for Am-PGE-2, while it was 95.1 Ω for bare PGE. Thus, Am-PGE-2 was used as a sensing platform for the detection of catechol. It was found that the electrochemical response of catechol oxidation at Am-PGE-2 was twice than the current obtained for bare PGE. Additionally, the effect of pH of the supporting electrolyte and reaction kinetic were studied. The heterogeneous electron transfer rate constant was calculated to be 0.01 s−1. Moreover, CV study revealed that the redox reaction of catechol was a quasi-reversible and diffusion-controlled process. The square wave voltammetry (SWV) technique was applied for the quantitative determination of catechol. The peak current showed a linear dependency on the concentration of catechol from 3 to 150 µM. Furthermore, the analyte could be detected as low as 3.86 µM. Likewise, the sensor demonstrates a good selectivity towards the target analyte than the other possible interfering molecules or ions. Aiming to examine practical applicability, real samples, such as river and household tap water, were tested by using the proposed transducer, and the satisfactory recoveries demonstrate the effectiveness of Am-PGE-2 in real life applications.

Effect of Magnesium Chloride in Supporting Electrolyte for Enhancing Sensitive and Selective Electrochemical Sensor: An Approach for Anti-Rheumatic Sulfasalazine Detection

Abstract: In this work, an electroanalytical evaluation for voltammetric sensing of the anti-rheumatic sulfasalazine (SSZ) at an unmodified screen-printed graphene electrode is demonstrated. By using the differential pulse technique, the SSZ produced a well-defined peak of around -0.3 V (versus Ag/AgCl) in Britton-Robinson (BR) buffer pH 4. Supporting electrolytes, pH, and salts all significantly impact SSZ reduction. Therefore, their impact on the working solutions was assessed. We discovered that using a mixture of BR buffer with pH 4 and MgCl2 as a supporting electrolyte can enhance SSZ sensitivity by approximately 1.7 times while simultaneously increasing detection selectivity. Under optimal conditions, the proposed assay demonstrated the ultrasensitive determination of SSZ with a broad linear detection range from 0.01 to 100 µM and a low detection limit of 4.7 nM (S/N = 3). To demonstrate the impact of the proposed method, the sensor has been successfully applied for the quantitative determination of SSZ in pharmaceutical, urine, and artificial serum sample. Therefore, this approach could offer simplicity, and rapidity, and serve as an alternative to the SSZ detection in practical applications.

Electrochemical behaviour of anthraquinone dyes in non-aqueous solvent solution. Part II. Controlled Potential Electrolysis of Alizarin

Abstract: This article is the second part of our already published research results (Caram, Banera, Martínez Suárez, Mirífico, 2017). The present work aims to characterise/identify reaction intermediates and final products of the cathodic electrolysis of alizarin (AH2) in solution of DMF and ACN with TBAP and NaClO4 as supporting electrolytes to corroborate the reaction mechanism previously published by us. Intermediates and reaction products are accumulated by controlled potential electrolysis (CPE) of AH2 performed at the potentials of the first, second, and third charge transfers. Progress of the electrolysis is followed by CV. The techniques employed for the characterisation/identification of the involved chemical species are CV, UV–Vis, FTIR, 1H and 13C NMR, ESR, elemental analysis, and quantum chemical computations based on density functional theory (DFT). Some aspects of the mechanism are corroborated, some details are modified, and new insights are obtained. Intermediates are detected by CV, and the structure of some of them (AH2● ─, AH3●, and AH─) is confirmed by ESR and by the identity of the isolated reaction products (1-hydroxy-2-methoxyanthracene-9,10-dione (AH-CH3) by adding an excess of CH3I at the end of the CPE in DMF/TBAP and NaClO4 as the electrolyte systems, and sodium 1-hydroxy-9,10-dioxo-9,10-dihydroanthracene-2-olate (AH-Na) in ACN/NaClO4). Ion pair formation between AH2● ─ semiquinone radical anion with Na+ is significant. The homogeneous dissociation equilibrium AH3─ ⇄AH22– + H+ does not occur, and AH2• – + AH2 ⇄ AH – + AH3• is a slow process more shifted to the right in DMF/TBAP electrolyte medium. AH-CH3 and AH-Na are clear evidence of the self-protonation reaction of AH2• –. Ca. 20 % of the initial moles of AH2 are converted into AH-CH3 in DMF/TBAP and NaClO4 as the electrolyte systems. CPE of AH2 in ACN/NaClO4 results in reaction products that are insoluble and are coating the electrode, ca. 80 % of the initial moles of AH2 are recuperated as pure AH-Na. AH-CH3 and AH-Na contain the carbonyl-quinone groups in their structures. The applied potential does not modify these results. AH-CH3 and AH-Na are electrochemically (CV) characterised. The acidity of the quinone dye, the homogeneous protonation/deprotonation equilibriums, the intramolecular hydrogen bonding, and the easy air oxidation and protonation of some of the intermediates have led to the obtained results.

A new sustainable approach using a composite material based on dimethylglyoxime and graphite immobilized on a 3D printed support for selective nickel detection

Abstract: In this work, the development of a low-cost electrochemical device (U$ 0.02 per electrode) from the immobilization of a composite material (CM) based on graphite powder, dimethylglyoxime (DMG) and nail polish, on a 3D printed acrylonitrile butadiene styrene (ABS) support was proposed for direct, sensitive and selective determination of Ni(II) by square-wave cathodic adsorptive stripping voltammetry (SWCAdSV) in a reduction potential of −1.15 V (vs Ag|AgCl|KCl(sat)). The CM was properly characterized by X-ray diffraction (XRD) and Raman spectroscopy, additionally, the electrode surface of the proposed device (3Ds-CM/DMG) was morphologically characterized through images obtained by scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The electrode was applied as a proof of concept for monitoring Ni(II) levels in spiked tap water and synthetic urine samples. Under optimal analysis conditions, the developed method showed a good linear working range with concentrations ranging from 5 to 100 µg L−1, detectability (limit of detection) of 1.693 µg L−1, and excellent precision with relative standard deviation (RSD) of 2.9%. The doped samples at three concentration levels presented recovery values from 93.8 to 103.1%, using as a sample preparation step a simple dilution in supporting electrolyte. Furthermore, the results were analytically validated by statistical comparison with results obtained by flame atomic absorption spectrometry (F AAS). Finally, the electrodes showed RSD of 6.1% for construction reproducibility, which allows inferring that the proposed electrode proves to be a promising analytical tool with wide applicability.

Leveraging graphical models to enhance in situ analyte identification via multiple voltammetric techniques

Abstract: Voltammetry is a powerful analytical technique for evaluating electrochemical reactions and holds particular promise for interrogating electrolyte solutions suitable for energy storage technologies, including examining features such as state-of-charge and state-of-health. However, individual voltammetry techniques are likely to be subcomponents of broader analytical workflows that incorporate complementary methods to diagnose evolving electrolyte solutions of uncertain composition. As such, we demonstrate that jointly evaluating electrolyte solutions with distinct voltammetric modes can enhance the capabilities and sensitivities of characterization protocols. Specifically, by considering both macroelectrode cyclic square wave and microelectrode cyclic voltammograms in sequential (“one after another”) and simultaneous (“all at once”) manners, the composition of an electrolyte solution may be estimated with greater accuracy, and analytes that exhibit near identical electrode potentials may be more readily differentiated. We additionally explore means of further improving this method, finding that protocol accuracy increases when multiple voltammetry techniques are included in the training dataset. We also observe that the algorithm typically becomes more confident—but not necessarily more accurate—when the number of data points increases. Overall, these studies show that the sequential and simultaneous methods may hold utility when evaluating multiple voltammetry datasets that, in turn, may be leveraged to streamline diagnostic workflows used to examine electrolyte solutions within electrochemical technologies.

Leveraging graphical models to enhance in situ analyte identification via multiple voltammetric techniques

Abstract: Voltammetry is a powerful analytical technique for evaluating electrochemical reactions and holds particular promise for interrogating electrolyte solutions suitable for energy storage technologies, including examining features such as state-of-charge and state-of-health. However, individual voltammetry techniques are likely to be subcomponents of broader analytical workflows that incorporate complementary methods to diagnose evolving electrolyte solutions of uncertain composition. As such, we demonstrate that jointly evaluating electrolyte solutions with distinct voltammetric modes can enhance the capabilities and sensitivities of characterization protocols. Specifically, by considering both macroelectrode cyclic square wave and microelectrode cyclic voltammograms in sequential ("one after another") and simultaneous ("all at once") manners, the composition of an electrolyte solution may be estimated with greater accuracy, and analytes that exhibit near identical electrode potentials may be more readily differentiated. We additionally explore means of further improving this method, finding that protocol accuracy increases when multiple voltammetry techniques are included in the training dataset. We also observe that the algorithm typically becomes more confident--but not necessarily more accurate--when the number of data points increases. Overall, these studies show that the sequential and simultaneous methods may hold utility when evaluating multiple voltammetry datasets that, in turn, may be leveraged to streamline diagnostic workflows used to examine electrolyte solutions within electrochemical technologies.

Application of Ion Chromatography for the Reliable Quantification of Ammonium in Electrochemical Ammonium Synthesis Experiments - A Practical Guide.

Abstract: Assessing novel electrocatalysts for the electrochemical ammonia synthesis (EAS) requires reliable quantitative trace analysis of electrochemically produced ammonia to infer activity and selectivity. In this study, we have developed and investigated an ion chromatography (IC) method for the quantitative trace analysis of ammonium in 0.1 M sulfuric acid electrolyte in detail and applied it successfully to EAS gas diffusion electrode (GDE) experiments with commercial chromium nitride as electrocatalyst. The developed IC method is highly sensitive, versatile and reliable achieving a limit of quantification (LOQ) of 6 µg l-1 (6 ppbmol) ammonium. The impacts of the sample matrix, dilution and neutralization as well as contamination on the quantitative analysis by IC were analyzed. Experimental constraints resulted in an effective LOQ including dilution of 60 µg l-1 for the determination of ammonium in 0.1 M sulfuric acid electrolyte due to necessary sample dilution. We believe that the practical guide presented here can be very relevant for the field of EAS as guideline and is applicable to both, a broad range of catalyst systems and ion chromatography devices.

Electrochemical Synthesis of β-Iodoesters by 1,2-Iodoesterization of Unactivated Alkenes with Carboxylic Acids and Tetrabutylammonium Iodide.

Abstract: We report a novel and highly selective electrochemical method for the synthesis of β-iodoesters via difunctionalization of alkenes. The reaction is carried out in an undivided cell under constant current conditions without any additives, catalysts, oxidants, and sacrificial reagents. Inexpensive and readily available tetrabutylammonium iodide not only acts as an electrolyte but also serves as an iodine source. The reaction shows high selectivity and good functional group tolerance, providing products in yields of up to 98%. This method is applicable not only to the iodofunctionalization of alkenes but also to the chloro- and bromofunctionalization of alkenes. The successful modification of drugs and natural products demonstrates the potential utility of this approach.

Some approximations on the effect of the supporting electrolyte towards electrochemical advanced oxidation degradation of Reactive Orange 84 (RO84)

Abstract: In this paper, some advanced oxidation electrochemical processes such as anodic oxidation (AO), electro-Fenton (EF), and photoelectro-Fenton (PEF) to carry out the degradation of the azo dye Reactive Orange 84 (RO84) are presented. For this, boron-doped diamond (BDD) electrodes were used, and different configurations were taken in a stirred tank cell, like BDD/graphite and BDD/BDD. The effect of different operating parameters on the discoloration process was evaluated, including the concentration of the supporting electrolyte, namely 50 and 75 mM of Na2SO4, along with 50 mM NaCl and mixtures of Na2SO4 + 25 mM NaCl. The effect of the applied current density at 25, 50, and 100 mA cm-2 over the loss of color was also analyzed using initial RO84 concentrations of 100 and 200 mg L-1. The production of free radicals was evaluated in the bulk solution. The decrease in chemical oxygen demand (COD) was determined and the evolution of oxalic acid, a nontoxic, short-chain carboxylic acid was quantified as a final product of all treatments by using ion-exclusion high-performance liquid chromatography.

Electrochemical Studies of Azulene Modified Electrodes

Abstract: Previous studies performed on 2-(azulen-1-yldiazenyl)-5-phenyl-1,3,4-thiadiazole (T) showed that T is a ligand with complexing properties towards heavy metals (HMs) in solution and can be attached to electrode surfaces. Films of T were deposited on glassy carbon to obtain chemically modified electrodes (T-CMEs), either through scanning or using controlled potential electrolysis in tetrabutylammonium perchlorate in acetonitrile. They were investigated using cyclic voltammetry (CV), differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS), and spectroelectrochemistry. All methods provided evidence for showing the formation of insulating films, with properties depending on their electropolymerization potential. CV and EIS studies of T-CMEs in tetrabutylammonium perchlorate in acetonitrile as supporting electrolyte, and in the presence of a ferrocene redox probe resulted in a thickness of ~10 µm, an active surface area about 6 times higher than the geometrical one, and conductivity of about 10−6 S/cm. This characterization performed using voltammetric techniques reveals the symmetry of the reversible anodic and cathodic redox CV peaks for the polymer, while spectroelectrochemistry shows the intensification of the charge transport process through polarons, due to the anodic polarization of the film.

The application of multi-walled carbon nanotubes modified pencil graphite electrode for voltammetric determination of favipiravir used in COVID-19 treatment

Abstract: This study describes the first application of an improved procedure on a pencil graphite electrode decorated with functionalized multi-walled carbon nanotubes (f-MWCNTs/PGE) for the determination of the COVID-19 antiviral drug, favipiravir (FVP). The electrochemical behavior of FVP at f-MWCNTs/PGE was examined by cyclic voltammetry and differential pulse voltammetry (DPV) methods, and it was noted that the voltammetric response significantly increased with the modification of f -MWCNTs to the surface. The linear range and limit of detection from DPV studies were determined as 1-1500 µM and 0.27 µM, respectively. In addition, the selectivity of the method was tested toward potential interferences, which can be present in pharmaceutical and biological samples, and it was found that f-MWCNTs/PGE showed high selectivity for the determination of FVP in the presence of probable interferences. The results with high accuracies and precisions from the obtained feasibility studies also revealed that the designed procedure can be used for accurate and selective voltammetric determination of FVP in real samples.

Electrochemical advanced oxidation processes: an efficient degradation method for the complete removal of Acid Blue 40

Abstract: Abstract Degradation of Acid Blue 40 (AB40) anthraquinone dye by electrochemical treatment was examined using a dimensionally stable anode (DSA) and stainless-steel cathodes as electrode materials, with NaCl as supporting electrolyte and current density of 50 and 100 mA cm -2 . To confirm if the electrolytic process was efficient in removing initial color and organic matter of the AB40 solution, spectrophotometric, chemical oxygen demand (COD) and biochemical oxygen demand (BOD 5 ) analysis were performed. COD removal kinects were studied to evaluate the velocity rate of the reaction. Also, chloroform analysis was realized using a GC-MS to verify if it was generated during the process. Bioassays with Artemia salina , Saccharomyces cerevisiae and Lactuca sativa were performed to verify if the process reduced the initial toxicity. The electrolytic treatment presented itself as a remarkable process degrading almost completely 96.96% of the color in 10 minutes of treatment, using of current density of 50 mA cm -2 . The AB40 solution became more degradable presenting an increase in the biodegradability index. A chloroform formation was observed with current density of 50 mA cm -2 , however, it presented concentrations below the EPA-USA regulations. Bioassays presented low toxicity for the treated solutions. The electrolytic treatment was shown to be highly effective for degradation of AB40 dye solution and DSA electrodes showed remarkable catalytic activity with applied current. It has environmental compatibility with low-cost and durable electrodes. In addition, it was observed high energy efficiency, no requirement for large quantities of chemicals and the process presented safety under soft conditions.