Reversed-Phase Chromatomembrane Extraction as a Novel Approach for Automated Sample Pretreatment: Anions Determination in Biodiesel by Ion Chromatography with Conductivity Detection Full article
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Analytica Chimica Acta
ISSN: 0003-2670 , E-ISSN: 1873-4324 |
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| Output data | Year: 2019, Volume: 1087, Pages: 62-68 Pages count : 7 DOI: 10.1016/j.aca.2019.08.031 | ||
| Tags | Automated sample pretreatment; Reversed-phase chromatomembrane extraction; Chromatomembrane cell; Biodiesel; Anions; Ion chromatography with conductivity detection | ||
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Abstract:
In this study, a reversed-phase chromatomembrane extraction (RP-CME) method as a novel approach for automated sample pretreatment was suggested for the first time. The RP-CME was applied to automated separation of anions (formate, chloride, nitrate, phosphate and sulfate) from biodiesel samples as a proof-of-concept example. The novel design of chromatomembrane cell was developed for on-line RP-CME. The RP-CME procedure assumed mass-transfer of water-soluble analytes from organic sample phase (biodiesel sample) to aqueous phase supported in a porous composite mass-transfer block. The composite mass-transfer block based on microporous hydrophobic poly (tetrafluoroethylene) and hydrophilic glass fiber was developed for the RP-CME implementation. The block provided the effective retention of aqueous phase into the cell and simultaneous penetration of organic phase. The hydrophilic membrane-based sheet was used for the on-line separation of hydrophilic emulsion (biodiesel in water) containing target analytes obtained during analytes elution by aqueous phase from the mass-transfer block. The RP-CME was successfully coupled with an ion chromatography with conductivity detection. The limits of detection, calculated from a blank test based on 3σ, were 5 μg kg−1 for sulfate, 6 μg kg−1 for nitrate, 3 μg kg−1 for chloride, 5 μg kg−1 for phosphate and 1 μg kg−1 for formate.
Cite:
Shishov A.
, Stolarova E.
, Moskvin L.
, Bulatov A.
Reversed-Phase Chromatomembrane Extraction as a Novel Approach for Automated Sample Pretreatment: Anions Determination in Biodiesel by Ion Chromatography with Conductivity Detection
Analytica Chimica Acta. 2019. V.1087. P.62-68. DOI: 10.1016/j.aca.2019.08.031 WOS Scopus РИНЦ ANCAN OpenAlex
Reversed-Phase Chromatomembrane Extraction as a Novel Approach for Automated Sample Pretreatment: Anions Determination in Biodiesel by Ion Chromatography with Conductivity Detection
Analytica Chimica Acta. 2019. V.1087. P.62-68. DOI: 10.1016/j.aca.2019.08.031 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Jun 8, 2019 |
| Accepted: | Aug 12, 2019 |
| Published online: | Aug 21, 2019 |
| Published print: | Dec 9, 2019 |
Identifiers:
| Web of science: | WOS:000488462400008 |
| Scopus: | 2-s2.0-85071247228 |
| Elibrary: | 41658623 |
| Chemical Abstracts: | 2019:1667903 |
| Chemical Abstracts (print): | 171:403949 |
| OpenAlex: | W2969983977 |