| Determination of 2,6-diisopropylnaphthalene (DIPN) and n-dibutylphthalate (DBP) in food and paper packaging materials from US marketplaces. | |
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MedLine Citation:
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PMID: 19680850 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A gas chromatography-ion-trap tandem mass spectrometry procedure was developed for the determination of 2,6-diisopropylnaphthalene (DIPN) and n-dibutylphthalate (DBP) in domestic and imported paper packages and food sold in US marketplaces. The procedure involved ultrasonic extraction with dichloromethane, followed by analysis with the gas chromatography-ion-trap tandem mass spectrometry. Calibration curves for DIPN and DBP were achieved with concentrations ranging from 0.01 to 10 microg ml(-1) and the corresponding r(2) values were 0.9976 and 0.9956, respectively. In most of the fortified samples the recoveries were higher than 80% with a relative standard deviation (RSD) <10%. Using this procedure, it was found that less than 20% of the tested domestic packages and more than 60% of the tested imported food packages contained both DIPN and DBP. The concentrations of DIPN and DBP ranged from 0.09 to 20 mg kg(-1) and 0.14 to 55 mg kg(-1), respectively, with most of the DINP and DBP levels lower than 20 mg kg(-1). DIPN was not detected (<0.01 mg kg(-1)) in 41 food samples and DBP was only detected in two domestic and four imported food samples with concentrations ranging from <0.01 to 0.81 mg kg(-1). |
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Authors:
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K Zhang; G O Noonan; T H Begley |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment Volume: 25 ISSN: 1944-0057 ISO Abbreviation: Food Addit Contam Part A Chem Anal Control Expo Risk Assess Publication Date: 2008 Nov |
Date Detail:
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Created Date: 2009-08-14 Completed Date: 2010-01-21 Revised Date: 2013-01-28 |
Medline Journal Info:
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Nlm Unique ID: 101485040 Medline TA: Food Addit Contam Part A Chem Anal Control Expo Risk Assess Country: England |
Other Details:
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Languages: eng Pagination: 1416-23 Citation Subset: IM |
Affiliation:
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US Food and Drug Administration, Centre for Food Safety & Applied Nutrition (CFSAN), MD, USA. kai.zhang@fda.hhs.gov |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Commerce Dibutyl Phthalate / analysis* Food Analysis / methods Food Contamination / analysis* Food Packaging* Gas Chromatography-Mass Spectrometry / methods Naphthalenes / analysis* Paper Plasticizers / analysis* Tandem Mass Spectrometry / methods United States |
| Chemical | |
Reg. No./Substance:
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0/Naphthalenes; 0/Plasticizers; 1X71YEU9QB/2,6-diisopropylnaphthalene; 84-74-2/Dibutyl Phthalate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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