The two-phase amphiphilic preconcentration based on surfactants to enrich phenolic compounds from diluted plant extracts and rat urine by micellar electrokinetic chromatography.
MEKC
Salvia miltiorrhiza Bge
phenolic compounds
preconcentration
two-phase affinity
Journal
Electrophoresis
ISSN: 1522-2683
Titre abrégé: Electrophoresis
Pays: Germany
ID NLM: 8204476
Informations de publication
Date de publication:
09 2022
09 2022
Historique:
revised:
18
05
2022
received:
21
02
2022
accepted:
21
06
2022
pubmed:
26
6
2022
medline:
9
9
2022
entrez:
25
6
2022
Statut:
ppublish
Résumé
A novel technology by two-phase amphiphilic preconcentration based on surfactants was established for enriching phenolic compounds by micellar electrokinetic chromatography (MEKC). The cationic surfactant cetyltrimethylammonium chloride (CTAC) was combined with the anionic analytes that existed in the sample solution before injection. The boundary was formed between CTAC and sodium dodecyl sulfate (SDS) in the background solution when the sample solution was injected into the capillary, where the analytes bound inside micelles were released due to the stronger electrostatic force between SDS and CTAC. This procedure accelerated the separation of analytes from CTAC and greatly improved the enrichment efficiency. The optimal conditions were obtained after a series of optimizations, and the sensitivity enrichment factors of the four analytes were in the range of 39-93 compared to typical injections in capillary zone electrophoresis. Good linearity for matrix-matched calibrations was established for all analytes with R
Identifiants
pubmed: 35751616
doi: 10.1002/elps.202200044
doi:
Substances chimiques
Micelles
0
Phenols
0
Plant Extracts
0
Surface-Active Agents
0
Sodium Dodecyl Sulfate
368GB5141J
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1735-1745Informations de copyright
© 2022 Wiley-VCH GmbH.
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