Polyallylamine-coated capillary electrophoresis with capacitively coupled contactless conductivity detection for rapid analysis of functional anions in bread
This coating approach enables stable and reproducible CE-C<sup>4</sup>D analysis of anions with a capillary coated with 0.01 % PAA reagent. The covalently bonded PAA suppresses cathodic EOF, eliminates buffer additives, and ensures consistent migration times over 80 separation cycles. Compared with conventional CTAB coatings, the PAA-coated capillary offers higher stability, improved sensitivity with larger peak areas, and enhanced reproducibility, enabling identification of 20 anions in bread samples within ∼10 min for high-throughput food analysis.
Authors
- Nadia Mira Kusumaningtyas
- Apinya Obma (ORCID: https://orcid.org/0000-0001-6485-7685)
- Rattikan Chantiwas (ORCID: https://orcid.org/0000-0002-3788-0908)
- Supa Wirasate (ORCID: https://orcid.org/0000-0002-0566-8750)
- Peter C. Hauser (ORCID: https://orcid.org/0000-0002-7506-5971)
- Sukumaporn Saengsuk
Institutions
- University of Basel (CH)
- Mahidol University (TH)
- University of Darussalam Gontor (ID)
Publication Details
- Journal
- Analytica Chimica Acta
- Published
- 2025-10-29
- DOI
- https://doi.org/10.1016/j.aca.2025.344833
- Primary Topic
- Microfluidic and Capillary Electrophoresis Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00