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A rapid method for the extraction, separation and quantification of the 4-hexylresorcinol from shrimp with high performance liquid chromatography (HPLC) is described. This modified method is faster than previously described methods with short pre–preparation and sharp reso-lution in HPLC procedures (sample preparation, extraction, separation and quantification total 40 min.). The coefficients of determinations (r2) measured for 4-hexylresorcinol were obtained over 0,999 in each curve. The confidence interval of the recovery working range of 1.5–2.5 mg/kg was approximately 95%. Limits of detection and quantitation were determined as 0.04 and 0.06 mg/kg for shrimp.
4-hexylresorcinol, Shrimp, Melanosis, Residue levels, HPLC, Fish genetics and genome, Fresh water fisheries, Aquatic (both freshwater and marine) systems