Poly(ethylene oxide)-bonded stationary phase for separation of inorganic anions in capillary ion chromatography

Linda, Roza; Lim, Lee Wah; Takeuchi, Toyohide

doi:10.1016/j.chroma.2013.04.052

Cited by 16 publications

(13 citation statements)

References 17 publications

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“…All anions were separated completely in a run with total analysis time of 30 min. 4 2-and 1.5-10 mg/L Cl -. Тherelative standard deviation was less than 1 %and it proved that the increased concentration do not affect the peak position.…”

Section: Resultsmentioning

confidence: 99%

“…Due to the intensive technological development new molecules appeared in the environment, which imposes determination of new analytes in common matrices or standard anions in new matrices. Novel stationary phases with appropriate selectivity and high separation efficiency have been proposing din attempt to respond to this challenge [3,4]. The environmental and health authorities, as well as modern industrial technologies impose stringer and stringer demands to the water quality and methods for determination at trace levels are highly demanded [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Validation of Ion Chromatographic Method for Determination of Standard Inorganic Anions in Treated and Untreated Drinking Water

Ivanova

Surleva

Koleva³

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. An ion chromatographic method for determination of fluoride, chloride, nitrate and sulphate in untreated and treated drinking waters was described. An automated 850 IC Professional, Metrohm system equipped with conductivity detector and Metrosep A Supp 7-250 (250 x 4 mm) column was used. The validation of the method was performed for simultaneous determination of all studied analytes and the results have showed that the validated method fits the requirements of the current water legislation. The main analytical characteristics were estimated for each of studied analytes: limits of detection, limits of quantification, working and linear ranges, repeatability and intermediate precision, recovery. The trueness of the method was estimated by analysis of certified reference material for soft drinking water. Recovery test was performed on spiked drinking water samples. An uncertainty was estimated. The method was applied for analysis of drinking waters before and after chlorination.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Validation of Ion Chromatographic Method for Determination of Standard Inorganic Anions in Treated and Untreated Drinking Water

Ivanova

Surleva

Koleva³

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Some researchers have developed various stationary phases by modifying the silica surface. Poly(ethylene oxide)-bonded stationary phase was successfully prepared by chemically bonded with aminopropylsilica for anions separation by ion-exchange mode [3][4][5]. Kawase et al, have prepared a hyperbranched amine-modified capillary column by reacting aminopropylsilica with diepoxidemodification and ammonia repeatedly for separation of iodide, nitrate, and iodate, as well as hydrophobic compounds [6].…”

Section: Introductionmentioning

confidence: 99%

One-pot Facile Preparation of Amino-functionalized Silica Hybrid Monoliths for Mixed-mode Chromatography

2019

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Silica hybrid monolithic columns were prepared using two precursors, in which organo-functionalized trialkoxysilanes are mixed with tetraalkoxysilanes. In this study, several types of amino-functionalized silica hybrid monolithic columns were prepared via single-step "one-pot" approach, and the amount of silica precursors, porogens, as well as the reaction conditions were optimized. The preparation was carried out by mixing the silica precursors, i.e. tetraethoxysilane (TEOS) or tetramethoxysilane (TMOS) with amino precursors such as aminopropyltrimethoxysilane (APTES), aminoethylaminopropyl-trimethoxysilane (AEAPTMS), and phenylaminopropyltrimethoxysilane (PAPTMS) in a porogenic solution. The chromatographic performance of these hybrid monolithic columns was optimized by investigating several parameters through the separation of inorganic anions (IO3 -, BrO3 -, Br -, NO2 -, NO3 -, I -, SCN -) and some polar compounds (thymine, thymidine, adenosine, adenine, uridine). Results showed that the silica hybrid monolithic columns could be operated at higher flow-rate that favors rapid separation. The run-to-run repeatability of Si-APTES and Si-PAPTMS hybrid monolithic columns were satisfactory with relative standard deviations (n = 5) of less than 8% for all the analyte anions.Amino-functionalized silica precursors was used in the preparation of hybrid monolithic column to reduce the preparation time via one-pot approach. The amine groups in the structure can provide weak anion exchange interaction and also hydrophilic interaction. The synthesized hybrid monolithic columns revealed good mechanical stability and good separation repeatability.

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“…In this respect, Linda et al (2013) described the baseline separation of six inorganic anions in water and human saliva by means of tosylated-poly(ethylene oxide) bonded to aminopropylsilica packing material.…”

Section: Miscellaneousmentioning

confidence: 99%

Theory and Practice of UHPLC and UHPLC–MS

Guillarme

Veuthey

2017

Handbook of Advanced Chromatography /Mass Spectrometry Techniques

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Poly(ethylene oxide)-bonded stationary phase for separation of inorganic anions in capillary ion chromatography

Cited by 16 publications

References 17 publications

Validation of Ion Chromatographic Method for Determination of Standard Inorganic Anions in Treated and Untreated Drinking Water

Validation of Ion Chromatographic Method for Determination of Standard Inorganic Anions in Treated and Untreated Drinking Water

One-pot Facile Preparation of Amino-functionalized Silica Hybrid Monoliths for Mixed-mode Chromatography

Theory and Practice of UHPLC and UHPLC–MS

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