title: Liquid chromatographic determination of the processing aid 4-hexylresorcinol in shrimp.
abstract: A rapid, sensitive, liquid chromatographic (LC) method has been developed for determination of residuals of the processing aid, 4-hexylresorcinol, on shrimp meat. An aqueous homogenate of shrimp meat is extracted with ethyl acetate followed by precolumn preparation on a silica Sep-Pak cartridge. LC determination is preformed with a Nova-Pak C18 column, with UV detection at 214 nm. Sensitivity was 0.006 micrograms, and recovery from shrimp meat samples of known 4-hexylresorcinol addition was 94%. Shrimp treated with 4-hexylresorcinol under the recommended dip protocol had mean residuals of 1.18 ppm, with a standard deviation of 0.13 ppm.
authors.affiliation: Opta Food Ingredients, Inc., Cambridge, MA 02139.
authors.forename: J M
authors.initials: JM
authors.lastname: King
authors.forename: A J
authors.initials: AJ
authors.lastname: McEvily
authors.forename: R
authors.initials: R
authors.lastname: Iyengar
mesh_terms: D000818:Animals; D002853:Chromatography, Liquid / Q000379:methods*; D033364:Decapoda / Q000737:chemistry*; D005503:Food Additives / Q000032:analysis*; D006604:Hexylresorcinol / Q000032:analysis*
chemical_list: D005503:Food Additives; D006604:Hexylresorcinol