Differential Pulse Adsorptive Cathodic Stripping Voltammetry for the Simultaneous Determination of Pb and Zn in Seawater Using Calcon

Pardi, Hilfi; Deswati, D; Edelwis, Tri Widya; Willian, Nancy; Fitriyah, Dina

doi:10.4152/pea.202101045

Cited by 11 publications

(11 citation statements)

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“…The slope value was Ea/2.303 R. Table 2 shows that Ea with SLE was higher than without it. The high Ea suggests that the reaction was difficult to initiate, due to the layer formed by SLE adsorbsion onto St-37 S. This layer protected the metal against HCI attack and corrosion [20][21][22][23][24][25][26]. ∆H° value was positive, indicating that the occurred process was an endothermic reaction.…”

Section: Ea Determinationmentioning

confidence: 99%

Stainless 37 Steel Corrosion Inhibition in a Hydrochloric Acid Solution with Senggani (Melastoma Candidum D. Don) Leaf Extract

Anggraini¹,

Emriadi²,

Stiadi³

2023

Port. Electrochim. Acta

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SLE (Melastoma candidum D. Don) was tested as an inhibitor of St-37 S corrosion in a HCl solution, using WL, PDP and SEM analysis methods. CR has decreased with SLE addition, according to the WL method. The highest IE(%) was 67%, with 0.8% SLE addition. Rise in T had a decreasing effect on IE(%). PDP showed that the extract was a mixed inhibitor. SEM analysis showed changes in the St-37 S surface immersed in HCl, without and with the inhibitor. SLE adsorption onto the steel surface obeyed Langmuir's isotherm.

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Section: Ea Determinationmentioning

confidence: 99%

Stainless 37 Steel Corrosion Inhibition in a Hydrochloric Acid Solution with Senggani (Melastoma Candidum D. Don) Leaf Extract

Anggraini¹,

Emriadi²,

Stiadi³

2023

Port. Electrochim. Acta

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“…The status of the mangrove forest area around the former bauxite mining area does not prohibit its development based on usefulness values, especially for fisheries and environmental services. 16 The dependence of the community around the mangrove forest is still very low as some people choose to be entrepreneurs. Fishermen are the only group of people in the community whose livelihood depends on mangrove forests.…”

Section: Sustainability Indexmentioning

confidence: 99%

“…The attribute of community dependence on the role of mangrove forests as a source of livelihood can be used as social capital to encourage communities to participate in the sustainable management of mangrove forests. [16][17][18] A value of 65.40 obtained from the analysis of the sustainability status of mangrove forests based on the social dimension indicated sustainability in the management. The level of public health and public perception of mangrove management were the two attributes that are sensitive and can greatly affect the social dimension.…”

Section: Sustainability Indexmentioning

confidence: 99%

Sustainability of mangrove forest management in the former bauxite mining area on Bintan Island

et al. 2023

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Background : The bauxite mining area on Bintan Island continues to expand into the mangrove forest area. Mangrove forests have ecological, economic, and social importance, which must be managed accordingly to maintain their sustainability. This research was conducted to examine the sustainability of mangrove forest management in the former bauxite mining area on Bintan Island. Methods: The approach used is Multi Dimensional Scaling- Rapid Appraisal for Sustainability through the modified Rapfish ordinance software technique for the Mangrove Ecosystem. The type of data used is quantitative, covering five dimensions of sustainability, namely ecological, economic, social, legal and institutional as well as technology. Results: The results showed that the sustainability index status of the ecological, social, legal and institutional dimensions was quite sustainable, while the sustainability index of the economic dimension was unsustainable, and the technological dimension was less sustainable. Attributes of levers that are sensitive to the sustainability of mangrove forest management are: 1) Mangrove density, 2) Substrate fraction, 3) sedimentation, 4) Mangrove importance index, 5) Bio-concentration factor, 6) Benefit value direct, 7) Indirect benefit value, 8) Dependence on mangrove forest as a source of livelihood, 9) Corporate Social Responsibility funding support, 10) Community income, 11) Community health level, 12) Community perception, 13) Legality of mangrove area and mining, 14) Pollution monitoring technology in ex-mining areas and 15) Mangrove rehabilitation technology. Conclusions:The status of the mangrove forest sustainability index on Bintan Island is quite good. the economic and technological dimensions can be upgraded to sustainable status by carrying out management that is more focused on the lever attributes of the ecological, social, legal and institutional dimensions.

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“…These techniques also lack speciation and simultaneous detection [8]. In recent years, electrochemical or voltammetric methods using anodic stripping voltammetry (ASV) or cathodic stripping voltammetry (CSV) have shown a high ability to detect trace heavy metals like thallium in environmental and biological matrices [9] [10]. Mercury drop electrodes were the first applications in this field.…”

Section: E E + >mentioning

confidence: 99%

Nucleation and Growth of Thallium on Thin Film Mercury Electrode: Voltammetric, Scanning Electron Microscopy, Chronoamperometric and Electrochemical Impedance Studies

Mahamane¹,

Guel²,

Fabre³

2022

AJAC

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Thallium is a heavy metal highly toxic to the biosphere. It can be determined by anodic stripping voltammetry after deposition on mercury film. The aim of this work is to study the conditions and mechanisms of deposition of Hg on glassy carbon electrode and Tl on Hg film by cyclic voltammetry, scanning electron microscopy, chronoamperometry and impedance techniques. The results showed a germination and growth of a 3D Hg phase on glassy carbon electrode. Similarly, the electrodeposition of Tl on Hg follows a 3D three-dimensional nucleation with diffusion controlled growth. The impedance measurements reveal an easier charge transfer on the Tl film.

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Differential Pulse Adsorptive Cathodic Stripping Voltammetry for the Simultaneous Determination of Pb and Zn in Seawater Using Calcon

Cited by 11 publications

References 0 publications

Stainless 37 Steel Corrosion Inhibition in a Hydrochloric Acid Solution with Senggani (Melastoma Candidum D. Don) Leaf Extract

Stainless 37 Steel Corrosion Inhibition in a Hydrochloric Acid Solution with Senggani (Melastoma Candidum D. Don) Leaf Extract

Sustainability of mangrove forest management in the former bauxite mining area on Bintan Island

Nucleation and Growth of Thallium on Thin Film Mercury Electrode: Voltammetric, Scanning Electron Microscopy, Chronoamperometric and Electrochemical Impedance Studies

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