Development of magnetic micro-solid phase extraction for analysis of phthalate esters in packaged food | Health & Environmental Research Online (HERO)

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Citation
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HERO ID

2510813

Reference Type

Journal Article

Title

Development of magnetic micro-solid phase extraction for analysis of phthalate esters in packaged food

Author(s)

Makkliang, F; Kanatharana, P; Thavarungkul, P; Thammakhet, C

Year

2015

Is Peer Reviewed?

Yes

Journal

Food Chemistry
ISSN: 0308-8146
EISSN: 1873-7072

Volume

166

Page Numbers

275-282

Language

English

PMID

25053056

DOI

10.1016/j.foodchem.2014.06.036

Web of Science Id

WOS:000342654200037

URL

https://search.proquest.com/docview/1837303465?accountid=171501http://www.sciencedirect.com/science/article/pii/S0308814614009224
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Abstract

A novel, simple and low cost magnetic multi-walled carbon nanotubes-poly (vinyl alcohol) cryogel-micro-solid phase extraction (magnetic-MWCNTs-PVA cryogel-μ-SPE) sorbent was synthesized by incorporating magnetic particles and MWCNTs into a PVA cryogel. The magnetic-MWCNTs-PVA cryogel-μ-SPE sorbent developed, with a large surface area and macro-porous structure, provided good sorbent-to-sorbent reproducibility (%RSD<8) and each sorbent could be used up to 30 times (%RSD<6). This sorbent was applied for the extraction of dibutyl phthalate (DBP) and di-2-(ethylhexyl) phthalate (DEHP) in packaged food prior to analysis by gas chromatograph coupled with flame ionisation detector (GC-FID). The concentration of DBP and DEHP in hot-water samples from plastic bags were found in the range 0.04-0.15 μg mL(-1) and 0.03-0.20 μg mL(-1), respectively, but only DEHP was found in clear chicken soup samples in the range 0.02-0.07 μg mL(-1).

Keywords

Trace analysis; Phthalate esters; Magnetic-micro-solid phase extraction; Cryogel; Multi-walled carbon nanotubes