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Use of a pH-sensitive polymer in a microextraction and preconcentration method directly combined with high-performance liquid chromatography

González-Martín, Raúl ; Pacheco-Fernández, Idaira ; Maiti, Binoy ; Ayala, Juan H. ; Afonso, Ana M. ; Díaz, David Díaz ; Pino, Verónica


A pH-sensitive polymer based on the poly(styrene-alt-maleic anhydride) co-polymer serves as basis to develop a microextraction method (pH-HGME) in direct combination with high-performance liquid chromatography (HPLC) and fluorescence detection (FD) for the determination of seven organic compounds, including three polycyclic aromatic hydrocarbons (PAHs), three monohydroxylated PAHs and one ...


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