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Continue to ChatEvaluation of microextraction by packed sorbent, liquid-liquid microextraction and derivatization pretreatment of diet-derived phenolic acids in plasma by gas https://publicaciones.udt.cl/pub/evaluation-of-microextraction-by-packed-sorbent-liquid-liquid-microextraction-and-derivatization-pretreatment-of-diet-derived-phenolic-acids-in-plasma-by-gas/