A polymeric membrane electrode for the detection of perchlorate in water at the sub-micro-molar level

Wang, Po-Yen; Shah, S. İsmat; Huang, Chin‐Pao

doi:10.1039/c3ay40522b

Cited by 8 publications

(4 citation statements)

References 38 publications

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“…Ionophores based on bis(dibenzoylmethanato)nickel(II) have also been developed, enabling the quantification of perchlorates even in rainwater. However, the limit of detection in this case was relatively high, in the range of 7 × 10 −7 M [230], being higher than the regulatory limits.…”

Section: Perchlorate Detectionmentioning

confidence: 55%

Ion-Selective Electrodes in the Food Industry: Development Trends in the Potentiometric Determination of Ionic Pollutants

Ruiz-Gonzalez

2024

Electrochem

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Food quality assessment is becoming a global priority due to population growth and the rise of ionic pollutants derived from anthropogenic sources. However, the current methods used to quantify toxic ions are expensive and their operation is complex. Consequently, there is a need for affordable and accessible methods for the accurate determination of ion concentrations in food. Electrochemical sensors based on potentiometry represent a promising approach in this field, with the potential to overcome limitations of the currently available systems. This review summarizes the current advances in the electrochemical quantification of heavy metals and toxic anions in the food industry using potentiometric sensors. The healthcare impact of common heavy metal contaminants (Cd2+, Hg2+, Pb2+, As3+) and anions (ClO4−, F−, HPO4−, SO42−, NO3−, NO2−) is discussed, alongside current regulations, and gold standard methods for analysis. Sensor performances are compared to current benchmarks in terms of selectivity and the limit of detection. Given the complexity of food samples, the percentage recovery values (%) and the methodologies employed for ion extraction are also described. Finally, a summary of the challenges and future directions of the field is provided. An overview of technologies that can overcome the limitations of current electrochemical sensors is shown, including new extraction methods for ions in food.

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Section: Perchlorate Detectionmentioning

confidence: 55%

Ion-Selective Electrodes in the Food Industry: Development Trends in the Potentiometric Determination of Ionic Pollutants

Ruiz-Gonzalez

2024

Electrochem

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“…However, membrane use in removal of oxychlorine species has not yet been investigated in a dairy matrix. Membrane fouling and treatment costs associated with these methods are major technical difficulties faced by membrane separation techniques (Wang, Shah, & Huang, ).…”

Section: Established Methods Of Removal and Reduction Of Oxychlorine mentioning

confidence: 99%

Chlorate and Other Oxychlorine Contaminants Within the Dairy Supply Chain

McCarthy

O’Callaghan

Danahar

et al. 2018

Comp Rev Food Sci Food Safe

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The presence of chlorate in milk and dairy products can arise from the use of chlorinated water and chlorinated detergents for cleaning and sanitation of process equipment at both farm and food processor level. Chlorate and other oxychlorine species have been associated with inhibition of iodine uptake in humans and the formation of methemoglobin, with infants and young children being a high‐risk demographic. This comprehensive review of chlorate and chlorine derivatives in dairy, highlights areas of concern relative to the origin and/or introduction of chlorate within the dairy supply chain. This review also discusses the associated health concerns, regulations, and chemical behavior of chlorate and chlorine‐derived by‐products, and provides a summary of mechanisms for their detection and removal.

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“…However, in the presence of medium-length chains, namely, BTBA and MTBA, steric effect takes effect to inhibit the interaction between perchlorate and nitrogen center. It is also worth to mention that MTOA which was used to prepare perchlorate selective electrode [48] showed insignificant K ClO À 4 ;NO À 3 and K ClO À 4 ;SO 2 À 4 values (⪡1) indicating small perchlorate permselectivity. MTBA membrane showed significantly superior perchlorate permselectivity than BTBA membrane as shown in Fig.…”

Section: Polymer Mass Contentmentioning

confidence: 99%

Preparation and characterization of functionalized poly(vinyl chloride) membranes for selective separation of perchlorate from water

Wang

Shah

Huang

2015

Journal of Membrane Science

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A polymeric membrane electrode for the detection of perchlorate in water at the sub-micro-molar level

Cited by 8 publications

References 38 publications

Ion-Selective Electrodes in the Food Industry: Development Trends in the Potentiometric Determination of Ionic Pollutants

Ion-Selective Electrodes in the Food Industry: Development Trends in the Potentiometric Determination of Ionic Pollutants

Chlorate and Other Oxychlorine Contaminants Within the Dairy Supply Chain

Preparation and characterization of functionalized poly(vinyl chloride) membranes for selective separation of perchlorate from water

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