Abstract
Residual quantities of 12 phthalates have been monitored in edible salts (raw salts, refined salts, refined salts with additives and baked salts) available in Korean food markets. Liquid–liquid extraction followed by liquid chromatography time-of-flight mass spectrometry (LC-TOF/MS) was used to analyse the samples. The method was validated and showed linear correlation (R 2 > 0.996) in the range 0.5–100 ng g−1 for all target analytes. Recoveries were 85.9–108.4%, except for diethyl phthalate (DEP). Relative standard deviations (RSDs) were 2.7–6.0% and the limits of detection (LODs) were 1.2–2.8 ng g−1. Although the contamination of phthalates in salt would be trivial in comparison to those of other main foods and below the reference dose of the Chronic Oral Exposure recommended by US-EPA, the availability of reference data could be valuable for food chemists and salt manufacturers.
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