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A new member of the pyrazoline family, 3‐naphthyl‐1‐(4‐trifluoromethyl)‐5‐(4‐carboxy phenyl)‐2‐pyrazoline has been evaluated as a precolumn derivatization reagent for the analysis of primary alcohols using HPLC. The simultaneous separation of eight alcohol derivatives (C1–C8) within 15 min was achieved on a reverse‐phase C8 column with an isocratic elution mode. The derivatives were detected with...