Ion selective electrodes in environmental analysis

Radu, Aleksandar; Radu, Tanja; McGraw, Christina M.; Dillingham, Peter W.; Anastasova-Ivanova, Salzitsa; Diamond, Dermot

doi:10.2298/jsc130829098r

Cited by 50 publications

(31 citation statements)

References 79 publications

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“…An identical procedure as that for the synthesis of 1propargyl-3-methylimidazolium chloride was used with the following proportions of starting materials: 1-butyl imidazole (2.25 g, 0.018 mol) was reacted with propargyl chloride (1.5 g, 0.02 mol). 3…”

Section: -Propargyl-3-butylimidazolium Chloride (2)mentioning

confidence: 99%

Robust, Bridge‐less Ion‐selective Electrodes with Significantly Reduced Need for Pre‐ and Post‐application Handling

Schazmann¹,

Demey²,

Ali³

et al. 2018

Electroanalysis

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We are demonstrating robust, single‐layer ion‐selective electrode (ISE) utilizing simple Ag/AgCl electrode as solid support without the need for intermediate polymer layer. We have created and chemically linked a family of imidazolium ionic liquids (ILs) with poly (vinyl chloride) (PVC) using click chemistry, resulting in hybrid materials with tunable characteristics. The resultant material inherently contains chloride ion thus offering the ability to stabilize interfacial potential. This allowed us to construct very simple, single‐layer membranes with significantly reduced need for conditioning as an added bonus compared to traditional sensors. Chemical immobilization of ISE membrane components also led to extended lifetime as the potential for material loss is reduced and detection limits are lowered. In our characterization we focused on perchlorate as a model ion. It's levels of around 10−7 M could be repeatedly quantified over a 100 day period despite constant exposure of ISEs to aqueous solution over this time. Most importantly, the electrodes exhibited stable and reproducible signal with significantly simplified pre‐ and post‐operation handling protocols. This offers potential for in situ applications as well as to advanced fabrication techniques and miniaturization. Simplicity of construction and operation, and low cost of the solid substrate allows for disposable ISE formats.

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Section: -Propargyl-3-butylimidazolium Chloride (2)mentioning

confidence: 99%

Robust, Bridge‐less Ion‐selective Electrodes with Significantly Reduced Need for Pre‐ and Post‐application Handling

Schazmann¹,

Demey²,

Ali³

et al. 2018

Electroanalysis

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“…Since the discovery of graphite paste electrodes for electroanalytical applications by Adam, they have attracted much attention due to their advantages such as ease of preparation, stable response, and loss of internal electrolyte (Svancara, Kalcher, Walcarius, & Vytras, 2012;Bobacka, Ivaska, & Lewenstam, 2008;Radu et al, 2013). Development of all-solid-state ion-selective electrodes for determination of environmental important ions is of great interest in many application fields (Wang, Chou, & Liu, 2003;Abramova, Moral-Vico, Soley, Ocana, & Bratov, 2016;Enseleit et al, 2018;Yin, Li, & Qin, 2017;Bomar, Owens, & Murray, 2017;Wardek, 2014).…”

Section: Introductionmentioning

confidence: 99%

All-Solid-State Ion-Selective Electrodes Based on Graphite Paste for Determination of Calcium(II) and Nitrate

Schwarz¹,

Enseleit²,

Trommer³

et al. 2019

IJC

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Robust and easy-to-handle ion-selective electrodes in all-solid-state configurations based on graphite paste have been developed for applications in environmental samples. The electrode consists of different functional layers (graphite paste, conducting polymer, ion-selective membrane). The ion-selective compounds have been incorporated in polyvinylchloride (PVC) membranes. Polypyrrole (PPy) acts as a solid contact and an intermediate layer between the ion-selective membrane and the graphite paste. As ion-complexing compounds tridodecylmethylammonium nitrate (TDMA-NO3) for nitrate, N,N,N’,N’-tetra[cyclohexyl]diglycolic acid diamide and N,N-dicyclohexyl-N‘,N‘-dioctadecyl-diglycolic diamide for calcium(II) determinations have been used. The electrodes have been tested in drinking and well water samples by direct potentiometric determination and by titrations. The results have been compared to ion chromatography as the reference method. Both ion selective electrodes exhibit linear response from 10-5 mol/L to 10-1 mol/L respectively. The detection limits for the target ions are below 10-6 mol/L based on the respective ion.

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“…Ion selective electrodes (ISEs) are an alternative chemical sensor to detect the analytes which are easy to manufacture, show excellent sensitivity and selectivity, and ability to connect to simple communication devices [ 8 , 9 , 10 ]. ISEs are have been widely used in many fields (most significantly in clinical analysis, although applications in agriculture, food processing, and pollution monitoring are relevant too).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Detection of Ammonium and Nitrate in Environmental Samples Using on Ion-Selective Electrode and Comparison with Portable Colorimetric Assays

Choosang

Numnuam

Thavarungkul

et al. 2018

Sensors

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Simple, robust, and low-cost nitrate- and ammonium-selective electrodes were made using substrate prepared from household materials. We explored phosphonium-based ILs and poly (methyl methacrylate)/poly(decyl methacrylate)(MMA-DMA) copolymer as matrix materials alternative to classical PVC-based membranes. IL-based membranes showed suitability only for nitrate-selective electrode exhibiting linear concentration range between 5.0 × 10−6 and 2.5 × 10−3 M with a detection limit of 5.5 × 10−7 M. On the other hand, MMA-DMA—based membranes showed suitability for both ammonium- and nitrate-selective electrodes, and were successfully applied to detect NO3− and NH4+ in water and soil samples. The proposed ISEs exhibited near-Nernstian potentiometric responses to NO3− and NH4+ with the linear range concentration between 5.0 × 10−5 and 5.0 × 10−2 M (LOD = 11.3 µM) and 5.0 × 10−6 and 1.0 × 10−3 M (LOD = 1.2 µM), respectively. The power of ISEs to detect NO3− and NH4+ in water and soils was tested by comparison with traditional, portable colorimetric techniques. Procedures required for analysis by each technique from the perspective of a non-trained person (e.g., farmer) and the convenience of the use on the field are compared and contrasted.

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Ion selective electrodes in environmental analysis

Cited by 50 publications

References 79 publications

Robust, Bridge‐less Ion‐selective Electrodes with Significantly Reduced Need for Pre‐ and Post‐application Handling

Robust, Bridge‐less Ion‐selective Electrodes with Significantly Reduced Need for Pre‐ and Post‐application Handling

All-Solid-State Ion-Selective Electrodes Based on Graphite Paste for Determination of Calcium(II) and Nitrate

Simultaneous Detection of Ammonium and Nitrate in Environmental Samples Using on Ion-Selective Electrode and Comparison with Portable Colorimetric Assays

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