Electrochemical detection of selected heavy metals in water: a case study of African experiences

Okpara, Enyioma C.; Fayemi, Omolola E.; Wojuola, Olanrewaju B.; Onwudiwe, Damian C.; Ebenso, Eno E.

doi:10.1039/d2ra02733j

Cited by 17 publications

(7 citation statements)

References 204 publications

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“…As contamination in water is difficult to stop because it is caused by natural and man-made sources [111]. It has the risk of cancer and causes skin lesions [74,111].…”

Section: Arsenic (As)mentioning

confidence: 99%

“…As contamination in water is difficult to stop because it is caused by natural and man-made sources [111]. It has the risk of cancer and causes skin lesions [74,111]. The recordable value for As obtained in a fish sample of Heteropneustes fossilis (stinging catfish) is 5.64 mg/kg at Bangshi River, Savar [60] exceeds the set limit value by MOFL [23] in Bangladesh is 5.0 mg/kg.…”

Section: Arsenic (As)mentioning

confidence: 99%

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Heavy Metal Intake by Fishes of Different River Locations in Bangladesh: A Comparative Statistical Review

Sachchu,

Hossain,

Kobir

et al. 2024

Asian J. Fish. Aqu. Res.

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Bangladesh a nation with a high population density, gets all of the protein it needs from river fishes. The observation is very alarming that heavy metals polluted the major river water by the growing garment washing, dyeing and textile, fertilizer, cement, tannery, metal, electrochemical and pharmaceutical industries were the main culprits that don’t have proper effective effluent treatment plants (ETP). High-value heavy metals in industrial area river fish as chromium (Cr) 164.73 mg/kg in Heteropneustes fossilis (stinging catfish) at Buriganga River, Hazaribagh, zinc (Zn) 309.47 mg/kg in Mastacembelus armatus (Bain) fish at Bangshi river, Savar, copper (Cu) 26.33 mg/kg in Mastacembelus armatus (Bain) at Bangshi river, Savar, arsenic (As) 5.64 mg/kg in Heteropneustes fossilis (stinging catfish) at Bangshi river, Savar, lead (Pb) 18.16 mg/kg in Channa punctatus (Taki) at Buriganga river, Hazaribagh and cadmium (Cd) 2.03 mg/kg in Heteropneustes fossilis (stinging catfish) at Buriganga river, Hazaribagh were observed. The two rivers are identified as most contaminated by heavy metals one is the Bangshi River, Savar, Gazipur and another one Buriganga River, Hazaribagh. The main reason for the contamination of these two rivers was uncontrolled industrialization around Dhaka and in Hazaribagh, a huge number of tanneries have grown that use a huge quantity of Cr creating a threat to the ecosystem and even a serious health risk for humans. Heavy metals that fish consume are contaminating river water ecosystems. This contamination spreads to human bodies and is the cause of many serious ailments.

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“…As contamination in water is difficult to stop because it is caused by natural and man-made sources [111]. It has the risk of cancer and causes skin lesions [74,111].…”

Section: Arsenic (As)mentioning

confidence: 99%

Section: Arsenic (As)mentioning

confidence: 99%

Heavy Metal Intake by Fishes of Different River Locations in Bangladesh: A Comparative Statistical Review

Sachchu,

Hossain,

Kobir

et al. 2024

Asian J. Fish. Aqu. Res.

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“…As we have already mentioned, pollution from heavy metal ions is a significant issue, and, currently, the addition of NPs with electrochemical sensors has developed a significant and innovative analytical technique for the detection of heavy metal ions (HMs), as nanomaterials have been shown to offer remarkable properties as detection platforms. Nanomaterials could be considered as a promising tool for the scientific community to detect toxic heavy metal ions, due to their sensitivity and selectivity, fast response time, high sensitivity, and reproducibility, as well as the possibility of the simultaneous detection of HMs with very low detection and quantification limits [ 56 ]. Over time, many different modification techniques have been explored.…”

Section: Modifiersmentioning

confidence: 99%

New Prospects in the Electroanalysis of Heavy Metal Ions (Cd, Pb, Zn, Cu): Development and Application of Novel Electrode Surfaces

Keramari

Karastogianni

Girousi

2023

MPs

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The detection of toxic heavy metal ions, especially cadmium (Cd), lead (Pb), zinc (Zn), and copper (Cu), is a global problem due to ongoing pollution incidents and continuous anthropogenic and industrial activities. Therefore, it is important to develop effective detection techniques to determine the levels of pollution from heavy metal ions in various media. Electrochemical techniques, more specifically voltammetry, due to its properties, is a promising method for the simultaneous detection of heavy metal ions. This review examines the current trends related to electrode formation and analysis techniques used. In addition, there is a reference to advanced detection methods based on the nanoparticles that have been developed so far, as well as formation with bismuth and the emerging technique of screen-printed electrodes. Finally, the advantages of using these methods are highlighted, while a discussion is presented on the benefits arising from nanotechnology, as it gives researchers new ideas for integrating these technologies into devices that can be used anywhere at any time. Reference is also made to the speciation of metals and how it affects their toxicity, as it is an important subject of research.

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“…Given the severity of heavy metal contamination, there is a pressing need for highly effective methods to detect even low quantities of the metals. Various methods have been developed for this purpose, including UV–Vis spectrometry, inductively coupled plasma optical emission spectrometry (ICP-OES), electrochemical methods, atomic absorption spectroscopy, and laser-induced breakdown spectroscopy (LIBS) [ 11 ]. Among the methods, electrochemical detection was exceptional due to its high sensitivity, accuracy, cost-effectiveness, and speed.…”

Section: Introductionmentioning

confidence: 99%

Study of graphene incorporation into ZnO-PVA nanocomposites modified electrode for sensitive detection of cadmium

Ismardi,

Gunawan,

Suhendi

et al. 2024

Heliyon

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Electrochemical detection of selected heavy metals in water: a case study of African experiences

Abstract: The safety of water resources throughout the globe has been compromised by various human activities and climate change over the last decades.

Cited by 17 publications

References 204 publications

Heavy Metal Intake by Fishes of Different River Locations in Bangladesh: A Comparative Statistical Review

Heavy Metal Intake by Fishes of Different River Locations in Bangladesh: A Comparative Statistical Review

New Prospects in the Electroanalysis of Heavy Metal Ions (Cd, Pb, Zn, Cu): Development and Application of Novel Electrode Surfaces

Study of graphene incorporation into ZnO-PVA nanocomposites modified electrode for sensitive detection of cadmium

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