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  • Multiple headspace-solid-phase microextraction as a powerful tool for the quantitative determination of volatile radiolysis products in a multilayer food packaging material sterilized with γ-radiation.

Multiple headspace-solid-phase microextraction as a powerful tool for the quantitative determination of volatile radiolysis products in a multilayer food packaging material sterilized with γ-radiation.

Journal of chromatography. A (2012-05-23)
Cristiane Patrícia de Oliveira, Angel Rodriguez-Lafuente, Nilda de Fátima Ferreira Soares, Cristina Nerin
ABSTRACT

A method consisting of multiple headspace solid-phase microextraction followed by gas chromatography-mass spectrometry analysis was developed and used to determine the main volatile radiolysis products formed by γ-irradiation of flexible multilayer food packaging samples. The developed method allows the use of solid-phase microextraction in the quantification of compounds from plastic solid samples. A screening of volatiles in the γ-irradiated and non-irradiated films was performed and 29 compounds were identified in the irradiated packaging, 17 of which were absent in the non-irradiated samples. The main volatile radiolysis products identified were: 1,3-di-tert-butylbenzene; 2,6-di-tert-butyl-1,4-benzoquinone; 4-tert-butyl-phenol and the off-odor compounds butanoic acid and valeric acid. These volatile radiolysis compounds were determined with the proposed method and the results are shown and discussed. Solid-liquid extraction and headspace solid-phase microextraction methods were also studied for comparative purposes. The automated solvent-free multiple HSPME technique here presented can be used to quantify the radiolysis compounds in irradiated plastic solid samples in a simple way with the advantages of being free from matrix influence and environmentally friendly.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
4-tert-Butylphenol, 99%
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200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), needle size 24 ga, StableFlex
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), needle size 24 ga, StableFlex, for use with autosampler
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), needle size 24 ga, for use with manual holder
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with autosampler
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with manual holder or autosampler, fiber L 2 cm
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 2 cm
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Supelco
SPME fiber assembly Divinylbenzene/Carboxen/Polydimethylsiloxane (DVB/CAR/PDMS), for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 1 cm
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Supelco
Valeric acid, analytical standard
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Sigma-Aldrich
Valeric acid, ≥99%, FCC, FG
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00
Sigma-Aldrich
Valeric acid, ≥99%
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SKUPack SizeAvailabilityPriceQuantity
200 μg
Estimated to ship on March 23, 2025
A recombinant, preservative-free antibody is available for your target. Try ZRB1226
$660.00