Simultaneous determination of alkali and alkaline earth metals by ion chromatography with neutral carrier-based ion-selective electrode detector

Hong, Uk Sun; Kwon, Hye Kyong; Nam, Hakhyun; Sig, Geun; Kwon, Kyung-Hee; Paeng, Ki‐Jung

doi:10.1016/0003-2670(95)00336-x

Cited by 18 publications

(8 citation statements)

References 24 publications

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“…ISEs with limited selectivity were used as detectors in ion chromatography or electrophoresis [154]. To reduce the selectivity and obtain more similar responses for various ions, ionophores that enhance the response to very hydrophilic ions but have a smaller effect on the response to more lipophilic ions have been used [155]. However, arrays of a small number of quite selective ISEs appear to be a viable alternative to this approach [156] and deliver more speci®c information than one nonselective electrode alone.…”

Section: Do We Need Selectivity?mentioning

confidence: 99%

“…Leaching can be avoided by covalent attachment of membrane components to the polymer backbone [202,203]. Depending on the very system, the anchoring of both the ionophore and the ion exchanger sites may [202] or may not [155,203] affect the response slope. To obtain a robust inner reference system, use of the lipophilic complex of a redox-active ion, such as of Ag , in connection with a Ag wire as solid contact, has been proposed [204,205].…”

Section: Size Limitsmentioning

confidence: 99%

See 1 more Smart Citation

Polymer Membrane Ion-Selective Electrodes-What are the Limits?

Bakker¹,

Bühlmann²,

Pretsch³

1999

Electroanalysis

342

197

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This article reviews recent advances in the ®eld of potentiometric solvent polymeric membrane electrodes. These sensors have found widespread applications in a variety of ®elds, especially in the area of clinical diagnostics. Emphasis is given on the discussion of the theoretical and practical limits of ionophore-based ion-selective electrodes, with a special focus on electrode sensitivities, characterization of selectivities and dramatic improvements in detection limits. Advances in ionophore design and in the underlying model assumptions are also discussed. It is shown that a multitude of exciting new research possibilities have recently emerged in this well±established ®eld.

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Section: Do We Need Selectivity?mentioning

confidence: 99%

Section: Size Limitsmentioning

confidence: 99%

Polymer Membrane Ion-Selective Electrodes-What are the Limits?

Bakker¹,

Bühlmann²,

Pretsch³

1999

Electroanalysis

342

197

View full text Add to dashboard Cite

show abstract

“…So, it is necessary to establish a rapid and sensitive method that can quantitatively determine a variety of metal ions simultaneously. Up to now, many methods have been proposed to determine metal ions, such as atomic absorption spectrometry (AAS) [6][7][8][9][10], inductively coupled plasma atomic emission spectrometry (ICP-AES) [11][12][13][14][15][16], spectrophotometry [17,18], high performance liquid chromatography [19], reversed-phase liquid chromatography [20], and ion chromatography [21]. The reinto spectrophotometer method is widely used for its simpleness.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of Cu2+, Zn2+, Cd2+, Hg2+ and Pb2+ by using second-derivative spectrophotometry method

Han

et al. 2011

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…The use of weak, e.g. carboxylic-based silica cationexchangers allows the elution of Ba 2+ and Sr 2+ by mild acidic complexing agents such as tartaric acid as the eluents and nonsuppressed conductivity detection [8] or ion selective electrode detection [9], but with the high LOD imposed by the detection technique. Only new philosophies and technology in stationary phases development can answer to this demand [10] , spectroscopic techniques such as IPC-MS are usually preferred [11,12].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of alkali, alkaline earths and ammonium in natural waters by ion chromatography

Bruzzoniti

Carlo

Fungi

2008

J of Separation Science

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An ion chromatographic method has been developed for the determination of alkali (Li + , Na + , K + ), alkaline earths (Ca 2+ , Mg 2+ , Ba 2+ , Sr 2+ ) and ammonium ion in waters. The usual difficulties encountered during traditional cation-exchange separations (incomplete resolution for Na + and NH 4 + present in disproportionate concentration ratios) have been overcome tuning the selectivity of the separation by the introduction of 18-crown-6 ether in the mobile phase using an IonPac CS12A (15063 mm id) column. After a detailed study of the effect of mobile phase components on separation, a gradient elution from 26 mM methanesulphonic acid (MSA) with a step change at 9 min to 60 mM MSA (0.5 mM 18-crown-6) provided the required baseline separation for the eight selected analytes. The method developed provides the advantage of the determination, in the same analytical run, also of strontium and barium, which is usually performed by spectroscopic techniques. Within-day and between-day repeatability have been assessed, observing between-day RSD included between 0.3 and 1.8% for retention times and 0.6 and 7.2% for peak areas. The method has been finally tested for the analysis of water samples of different provenience (well, tanks, water system) and results compared with those obtained by the laboratory in charge of the control of drinking water for the city of Torino (Italy).

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Simultaneous determination of alkali and alkaline earth metals by ion chromatography with neutral carrier-based ion-selective electrode detector

Cited by 18 publications

References 24 publications

Polymer Membrane Ion-Selective Electrodes-What are the Limits?

Polymer Membrane Ion-Selective Electrodes-What are the Limits?

Simultaneous determination of Cu2+, Zn2+, Cd2+, Hg2+ and Pb2+ by using second-derivative spectrophotometry method

Simultaneous determination of alkali, alkaline earths and ammonium in natural waters by ion chromatography

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