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Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography

An analytical method has been developed for the simultaneous determination of plasticizers belonging to the classes of phthalates, adipates, sebacates, azelates, phosphates, glycolate, citrates, and trimellitates which are often present in plastic food packaging. Sample extraction consists of sol...

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Main Author: Nasir, Zalilah
Format: Thesis
Language:English
Published: 2008
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/18000/1/ZalilahNasirMFS2008.pdf
http://eprints.utm.my/id/eprint/18000/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:1122?queryType=vitalDismax&query=Development+of+method+for+simultaneous+determination+of+plasticizers+in+plastic+food+packaging+by+gas+chromatography&public=true
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spelling my.utm.180002018-07-25T08:01:20Z http://eprints.utm.my/id/eprint/18000/ Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography Nasir, Zalilah QD Chemistry An analytical method has been developed for the simultaneous determination of plasticizers belonging to the classes of phthalates, adipates, sebacates, azelates, phosphates, glycolate, citrates, and trimellitates which are often present in plastic food packaging. Sample extraction consists of solvent dissolution, precipitation, centrifugation, and concentration steps before analysis by gas chromatography with flame ionization detector (GC-FID). The developed analytical procedure makes possible the simultaneous determination of 20 compounds in common plastic materials for food packaging industry, namely dimethyl phthalate, diethyl phthalate, diisopropyl phthalate, di-n-propyl phthalate, diisobutyl phthalate, di-n-butyl phthalate, dipentyl phthalate, din- butyl sebacate, acetyl-tri-n-butyl citrate, butylphthalyl butyl glycolate, butylbenzyl phthalate, dihexyl phthalate, di-2-ethylhexyl adipate, tri-2-ethylhexyl phosphate, dichlorohexyl phthalate, di-2-ethylhexyl phthalate, tri-n-butyl trimellitate, di-2- ethylhexyl azelate, di-n-octyl phthalate and tri-2-ethylhexyl trimellitate within 35 minutes of gas chromatographic separation. Performance characteristics of the method such as linearity range, detection and quantification limit, specificity, trueness and precision were studied and were found to be within the acceptable limit for each plasticizer type. With the limit of detection between 0.61 to 2.88 mg/kg, the method was successfully applied to the determination of plasticizers in plastic food packaging made of polyvinyl chloride, polyvinylidene chloride, polystyrene and polycarbonate. The method was found to be reliable, not labor intensive, suitable for general use and offer considerable time savings over the individual methods available to date. Thus, the proposed method could be used by many agencies including industries’ own quality control laboratories and enforcement authorities in charge with ensuring plastic food packaging meet applicable regulations. 2008 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/18000/1/ZalilahNasirMFS2008.pdf Nasir, Zalilah (2008) Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography. Masters thesis, Universiti Teknologi Malaysia, Faculty of Science. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:1122?queryType=vitalDismax&query=Development+of+method+for+simultaneous+determination+of+plasticizers+in+plastic+food+packaging+by+gas+chromatography&public=true
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Nasir, Zalilah
Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography
description An analytical method has been developed for the simultaneous determination of plasticizers belonging to the classes of phthalates, adipates, sebacates, azelates, phosphates, glycolate, citrates, and trimellitates which are often present in plastic food packaging. Sample extraction consists of solvent dissolution, precipitation, centrifugation, and concentration steps before analysis by gas chromatography with flame ionization detector (GC-FID). The developed analytical procedure makes possible the simultaneous determination of 20 compounds in common plastic materials for food packaging industry, namely dimethyl phthalate, diethyl phthalate, diisopropyl phthalate, di-n-propyl phthalate, diisobutyl phthalate, di-n-butyl phthalate, dipentyl phthalate, din- butyl sebacate, acetyl-tri-n-butyl citrate, butylphthalyl butyl glycolate, butylbenzyl phthalate, dihexyl phthalate, di-2-ethylhexyl adipate, tri-2-ethylhexyl phosphate, dichlorohexyl phthalate, di-2-ethylhexyl phthalate, tri-n-butyl trimellitate, di-2- ethylhexyl azelate, di-n-octyl phthalate and tri-2-ethylhexyl trimellitate within 35 minutes of gas chromatographic separation. Performance characteristics of the method such as linearity range, detection and quantification limit, specificity, trueness and precision were studied and were found to be within the acceptable limit for each plasticizer type. With the limit of detection between 0.61 to 2.88 mg/kg, the method was successfully applied to the determination of plasticizers in plastic food packaging made of polyvinyl chloride, polyvinylidene chloride, polystyrene and polycarbonate. The method was found to be reliable, not labor intensive, suitable for general use and offer considerable time savings over the individual methods available to date. Thus, the proposed method could be used by many agencies including industries’ own quality control laboratories and enforcement authorities in charge with ensuring plastic food packaging meet applicable regulations.
format Thesis
author Nasir, Zalilah
author_facet Nasir, Zalilah
author_sort Nasir, Zalilah
title Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography
title_short Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography
title_full Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography
title_fullStr Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography
title_full_unstemmed Development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography
title_sort development of method for simultaneous determination of plasticizers in plastic food packaging by gas chromatography
publishDate 2008
url http://eprints.utm.my/id/eprint/18000/1/ZalilahNasirMFS2008.pdf
http://eprints.utm.my/id/eprint/18000/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:1122?queryType=vitalDismax&query=Development+of+method+for+simultaneous+determination+of+plasticizers+in+plastic+food+packaging+by+gas+chromatography&public=true
_version_ 1643646770012487680
score 13.211869

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