LC-TOF/MS determination of phthalates in edible salts from food markets in Korea

Title
LC-TOF/MS determination of phthalates in edible salts from food markets in Korea
Authors
Warnadi Dirwono남윤식박현미이강봉
Keywords
phthalate; edible salt; unrefined raw salt; baked salt; LC-TOF/MS
Issue Date
2013-08
Publisher
Food Additives and Contaminants Part B-Surveillance
Citation
VOL 6, NO 3, 203-208
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-offlight mass spectrometry (LC-TOF/MS) was used to analyse the samples. The method was validated and showed linear correlation (R2 > 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.
URI
http://pubs.kist.re.kr/handle/201004/45788
ISSN
19393210
Appears in Collections:
KIST Publication > Article
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