Selectivity enhancement on a poly(butadiene-maleic acid)-coated cation phase induced by ethylene oxide-based complexing agents

Läubli, Markus W.; Kampus, Barbara

doi:10.1016/0021-9673(95)00262-l

Cited by 33 publications

(10 citation statements)

References 2 publications

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“…The chelation contribution is strongly depending on sample pH. As with many polymer-coated silica columns, manufacturing is not very reproducible, so eluant composition has to be optimized depending on the various column lots [26,27]. This stability problem was solved by the development of a polymer-based cation exchanger, which is traded as IonPac CS12 [28].…”

Section: Polymer-based Cation Exchangersmentioning

confidence: 99%

Modern stationary phases for ion chromatography

Weiss¹,

Jensen²

2003

Anal Bioanal Chem

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Due to the better understanding of the processes taking place at the surface of the stationary phases, the number of ion-exchange materials for ion chromatography (IC) has increased tremendously over recent years. As a result, the multitude of commercially available columns today with their different selectivities for anion and cation chromatography is almost confusing. Hence, the aim of this article is to describe the different principles determining selectivity and ion-exchange capacity and to classify the various ion-exchange materials accordingly. To ensure a fair comparison of these columns, the selectivity differences are illustrated by showing separations of standards rather than individual samples. Keywords Ion chromatography · Stationary phases · Support materials · Inorganic anions and cations · Organic anions and cations Anion exchangersPolymer-based anion exchangers Styrene/divinylbenzene copolymers, polymethacrylate, and polyvinyl resins are the most important organic polymers that are used as substrate materials in the manufacturing process for polymer-based anion exchangers.

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Section: Polymer-based Cation Exchangersmentioning

confidence: 99%

Modern stationary phases for ion chromatography

Weiss¹,

Jensen²

2003

Anal Bioanal Chem

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“…The addition of crown ethers (18-crown-6 and 15-crown-5) to acidic eluents in non-suppressed IC with conductimetric detection with columns packed with carboxylated silica and styrene-divinylbenzene copolymer resin to improve the peak resolution between mono-and divalent cations has recently been reported. 9,10 Therefore, the effect of these crown ethers added to 1.5 mmol dm 23 oxalic acid eluent was investigated for the complete separation of mono-and divalent cations on the Zorbax BP-SIL column.…”

Section: Effect Of Crown Ethers On the Retention Behavior Of Monoand ...mentioning

confidence: 99%

“…It has been reported that the addition of crown ethers, such as 1,4,7,10,13-pentaoxacyclopentadecane (15-crown-5) and 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6), to acidic eluents was very effective in improving the peak resolution between mono-and divalent cations on columns packed with carboxylated silica and styrene-divinylbenzene copolymer resin. 9,10 Therefore, the addition of these crown ethers to an acidic eluent was carried out in this work. Using a 1.5 mmol dm 23 oxalic acid-3 mmol dm 23 15-crown-5 as the eluent, both highly sensitive detection and excellent simultaneous separation of the mono-and divalent cations studied was achieved in 10 min.…”

mentioning

confidence: 99%

Ion chromatographic separation of common mono- and divalent cations on an unmodified silica gel column by elution with oxalic acid containing crown ethers

Ohta¹,

Tanaka²

1999

Analyst

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“…The addition of 18-crown-6 to an acidic eluent in IC-CD using carboxylated styrene-divinylbenzene co-polymer resin and carboxylated silica as the cation-exchange stationary phases is very effective for the improvement of peak resolution between these mono-and divalent cations [21,22]. Figure 3 shows the relationship between the concentration of 18-crown-6 in the eluent and the retention volumes of these mono-and divalent cations.…”

Section: Effect Of 18-crown-6 On Chromatographic Behavior Of Mono-andmentioning

confidence: 99%

Application of pure silica gel as cation-exchange stationary phase in lon chromatography with indirect photometric detection for common mono-and divalent cations using aromatic monoamines as eluents

et al. 2002

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SummaryA pure silica gel (Pia Seed 5S-60-SIL), synthesized by the hydrolysis of pure tetraethoxysilane [Si(OCH2CH3)4L was applied as a cation-exchange stationary phase in ion chromatography with indirect photometric detection for common mono-and divalent cations (Li +, Na +, NH4 +, K +, Mg 2+ and Ca 2+) using various protonated aromatic monoamines (tyramine [4-(2-aminethyl)phenolL benzylamine, phenylethylamine, 2-methylpyridine and 2,6-dimethylpyridine) as eluent ions. When using 0.75 mM tyramine-0.25 mM oxalic acid-l.5 mM 18-crown-6 (1,4, 7,10,13,16-hexaoxacyclooctadecane) at pH 5.0 as the eluent, excellent simultaneous separation and highly sensitive detection at 275 nm for these mono-and divalent cations were achieved on the Pia Seed 5S-60-SIL column (150 x 4.6 mm I.D.) in 20 min.

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Selectivity enhancement on a poly(butadiene-maleic acid)-coated cation phase induced by ethylene oxide-based complexing agents

Cited by 33 publications

References 2 publications

Modern stationary phases for ion chromatography

Modern stationary phases for ion chromatography

Ion chromatographic separation of common mono- and divalent cations on an unmodified silica gel column by elution with oxalic acid containing crown ethers

Application of pure silica gel as cation-exchange stationary phase in lon chromatography with indirect photometric detection for common mono-and divalent cations using aromatic monoamines as eluents

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