Hydrophobicity of polymer based anion-exchange columns for ion chromatography
The regularities of the retention of alkanoic and alkanesulfonic acids homologues were investigated for the set of 36 anion-exchange columns produced by various manufacturers. The role of hydrophobic and electrostatic interactions in the retention and separation of organic anions was studied. The me...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-06-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844021013931 |
| _version_ | 1818589463330160640 |
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| author | Pavel N. Nesterenko Ekaterina P. Nesterenko |
| author_facet | Pavel N. Nesterenko Ekaterina P. Nesterenko |
| author_sort | Pavel N. Nesterenko |
| collection | DOAJ |
| description | The regularities of the retention of alkanoic and alkanesulfonic acids homologues were investigated for the set of 36 anion-exchange columns produced by various manufacturers. The role of hydrophobic and electrostatic interactions in the retention and separation of organic anions was studied. The methylene selectivity increments α(CH2) were measured for the studied columns with 10 mM sodium hydroxide eluent. The influence of matrix, surface area, polar group structure, ion-exchange capacity, the density of charged functional groups on the surface and other characteristics of anion-exchangers on resin hydrophobicity was considered.A unified approach for the measurements of hydrophobic properties of anion-exchange resins is proposed and the ratio of chloride retention factor (kCl) to α(CH2) was introduced as mixed-mode factor. The synergetic effect of electrostatic and hydrophobic interactions was observed. |
| first_indexed | 2024-12-16T09:41:03Z |
| format | Article |
| id | doaj.art-ee15a260ed324bf48ebeb0c6ab5486e0 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-12-16T09:41:03Z |
| publishDate | 2021-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-ee15a260ed324bf48ebeb0c6ab5486e02022-12-21T22:36:17ZengElsevierHeliyon2405-84402021-06-0176e07290Hydrophobicity of polymer based anion-exchange columns for ion chromatographyPavel N. Nesterenko0Ekaterina P. Nesterenko1Corresponding author.; Department of Chemistry, Lomonosov Moscow State University, 1–3 Leninskie Gory, 119991 Moscow, Russian FederationDepartment of Chemistry, Lomonosov Moscow State University, 1–3 Leninskie Gory, 119991 Moscow, Russian FederationThe regularities of the retention of alkanoic and alkanesulfonic acids homologues were investigated for the set of 36 anion-exchange columns produced by various manufacturers. The role of hydrophobic and electrostatic interactions in the retention and separation of organic anions was studied. The methylene selectivity increments α(CH2) were measured for the studied columns with 10 mM sodium hydroxide eluent. The influence of matrix, surface area, polar group structure, ion-exchange capacity, the density of charged functional groups on the surface and other characteristics of anion-exchangers on resin hydrophobicity was considered.A unified approach for the measurements of hydrophobic properties of anion-exchange resins is proposed and the ratio of chloride retention factor (kCl) to α(CH2) was introduced as mixed-mode factor. The synergetic effect of electrostatic and hydrophobic interactions was observed.http://www.sciencedirect.com/science/article/pii/S2405844021013931Ion chromatographyMixed-mode chromatographyRetention mechanismIon-exchangeMethylene selectivityHydrophobicity |
| spellingShingle | Pavel N. Nesterenko Ekaterina P. Nesterenko Hydrophobicity of polymer based anion-exchange columns for ion chromatography Heliyon Ion chromatography Mixed-mode chromatography Retention mechanism Ion-exchange Methylene selectivity Hydrophobicity |
| title | Hydrophobicity of polymer based anion-exchange columns for ion chromatography |
| title_full | Hydrophobicity of polymer based anion-exchange columns for ion chromatography |
| title_fullStr | Hydrophobicity of polymer based anion-exchange columns for ion chromatography |
| title_full_unstemmed | Hydrophobicity of polymer based anion-exchange columns for ion chromatography |
| title_short | Hydrophobicity of polymer based anion-exchange columns for ion chromatography |
| title_sort | hydrophobicity of polymer based anion exchange columns for ion chromatography |
| topic | Ion chromatography Mixed-mode chromatography Retention mechanism Ion-exchange Methylene selectivity Hydrophobicity |
| url | http://www.sciencedirect.com/science/article/pii/S2405844021013931 |
| work_keys_str_mv | AT pavelnnesterenko hydrophobicityofpolymerbasedanionexchangecolumnsforionchromatography AT ekaterinapnesterenko hydrophobicityofpolymerbasedanionexchangecolumnsforionchromatography |