Simultaneous preconcentration and determination of sulfonamide antibiotics in milk and yoghurt by dynamic pH junction focusing coupled with capillary electrophoresis

• Main Authors: Semail, Nadhiratul Farihin, Abdul Keyon, Aemi Syazwani, Saad, Bahruddin, Kamaruzaman, Sazlinda, Mohamad Zain, Nur Nadhirah, Lim, Vuanghao, Miskam, Mazidatulakmam, Wan Abdullah, Wan Nazwanie, Yahaya, Noorfatimah, Chen, David D. Y.
• Format: Article
• Published: Elsevier B.V. 2022
• Subjects: QD Chemistry
• Online Access: http://eprints.utm.my/104551/; http://dx.doi.org/10.1016/j.talanta.2021.122833

A dynamic pH junction was used in capillary electrophoresis (CE-DAD) to on-line preconcentrate, separate, and determine trace amounts of sulfonamide antibiotics (SAs) in milk and yoghurt samples in this study. A sample matrix with 0.15% acetic acid and 10% methanol (MeOH) at a pH of 4.0, and a backg...