On line coupling of a liquid-liquid extraction flow-reversal system to a spectrophotometric flow-through sensor for the determination of polyphenols in olive oil

Membrane extraction-preconcentration cel

Membrane extraction-preconcentration cell coupled on-line to flow-injection and liquid chromatographic systems. Determination of triazines in oils

✍ R.Carabias Martínez; E.Rodríguez Gonzalo; E.Hernández Fernández; J.Hernández Mén 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 847 KB

This study was initiated to investigate the potential of on-line liquid-liquid extraction with membrane barriers coupled to liquid chromatographic systems for the fully automated purification and enrichment of complex samples containing very low analyte concentrations. As an illustration, a routine