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  • On-fiber furan formation from volatile precursors: a critical example of artefact formation during Solid-Phase Microextraction.

On-fiber furan formation from volatile precursors: a critical example of artefact formation during Solid-Phase Microextraction.

Journal of chromatography. B, Analytical technologies in the biomedical and life sciences (2012-05-01)
An Adams, Fien Van Lancker, Bruno De Meulenaer, Agnieszka Owczarek-Fendor, Norbert De Kimpe
ZUSAMMENFASSUNG

For the analysis of furan, a possible carcinogen formed during thermal treatment of food, Solid-Phase Microextraction (SPME) is a preferred and validated sampling method. However, when volatile furan precursors are adsorbed on the carboxen/PDMS fiber, additional amounts of furan can be formed on the fiber during thermal desorption, as shown here for 2-butenal and furfural. No significant increase in furan amounts was found upon heating the furan precursor 2-butenal, indicating that the furan amounts formed during precursor heating experiments are negligible as compared to the additional amounts of furan formed during fiber desorption. This artefactual furan formation increased with increasing desorption time, but especially with increasing desorption temperature. Although this effect was most pronounced on the Carboxen/PDMS SPME-fiber, it was also noted on two other SPME-fibers tested (PDMS and DVB/Carboxen/PDMS). The general impact on furan data from food and model systems in literature will depend on the amounts of volatile precursors present, but will probably remain limited. However, considering the importance of this worldwide food contaminant, special care has to be taken during SPME-analysis of furan. Especially when performing precursor studies, static headspace sampling should preferably be applied for furan analysis.

MATERIALIEN
Produktnummer
Marke
Produktbeschreibung

Supelco
SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 24 ga, for use with manual holder
Supelco
SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 24 ga, StableFlex
Supelco
SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with autosampler
Supelco
SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 23 ga, StableFlex, for use with manual holder or autosampler, fiber L 2 cm
Supelco
SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), needle size 24 ga, StableFlex, for use with autosampler
Supelco
ORBO Carboxen-564 Röhrchen, W,F,F separators, O.D. × L 6 mm × 75 mm, pkg of 25 ea, for analyte group MEK (methylethyl ketone)
Supelco
Carboxen® Adsorptionsmittel, matrix Carboxen® 1000, 60-80 mesh, bottle of 10 g
Supelco
ORBO 78 HBr auf Carboxen® 564 speziell gereinigt (20/45), 400/200 mg, W,W,W separators, O.D. × L 6 mm × 110 mm, pkg of 25 ea
Supelco
Carboxen®-1010 PLOT Kapillar-GC-Säule, L × I.D. 30 m × 0.53 mm, average thickness 30 μm
Supelco
SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), df 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga
Sigma-Aldrich
Crotonaldehyd, vorwiegend trans, ≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H2O as stabilizer
Sigma-Aldrich
Crotonaldehyd (cis+trans), ratio of cis- and trans-isomers (~1:20), ≥99.5% (GC)
Supelco
Carboxen®-1006 PLOT Kapillar-GC-Säule, L × I.D. 30 m × 0.53 mm, average thickness 30 μm
Supelco
SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), df 85 μm(CAR/PDMS, needle size 23 ga, StableFlex, for use with autosampler
Supelco
SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), df 75 μm(CAR/PDMS, needle size 24 ga, for use with autosampler
Supelco
SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), df 85 μm(CAR/PDMS, needle size 24 ga, StableFlex, for use with autosampler
Supelco
Carboxen®-1010 PLOT Kapillar-GC-Säule, L × I.D. 30 m × 0.32 mm, average thickness 15 μm
Supelco
SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), df 85 μm(CAR/PDMS, needle size 24 ga, for use with manual holder, StableFlex fiber
Supelco
SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), df 75 μm(CAR/PDMS, needle size 23 ga, for use with autosampler
Supelco
SPME-Faseranordnung Carboxen/Polydimethylsiloxan (CAR/PDMS), df 75 μm(CAR/PDMS, needle size 23 ga, for use with manual holder
Supelco
Carboxen® Adsorptionsmittel, matrix Carboxen® 572, 20-45 mesh, bottle of 10 g
Supelco
Carboxen®-1006 PLOT Kapillar-GC-Säule, L × I.D. 30 m × 0.32 mm, average thickness 15 μm
Supelco
Tenax® TA / Carboxen® 1018, glass TD tube, preconditioned, O.D. × L 1/4 in. × 3 1/2 in., Sealed with (Swagelok® End-Fittings), pkg of 10 ea
Supelco
Carboxen® 1000 Reversibles SPE-Röhrchen, 200 mg/mL, pk 30
Supelco
SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 2 cm
Supelco
Carboxen® Adsorptionsmittel, matrix Carboxen® 1000, 40-60 mesh, bottle of 50 g
Supelco
Carboxen® Adsorptionsmittel, matrix Carboxen® 569, 20-45 mesh, bottle of 10 g
Supelco
Carboxen® Adsorptionsmittel, matrix Carboxen® 1003, 40-60 mesh, bottle of 10 g
Supelco
ORBO-93 Sorbensröhrchen, ORBO tube I.D. × L 6 mm × 95 mm, Bed A 180 mg, Bed B 90 mg, 60/80 mesh, pkg of 25 ea
Supelco
SPME-Faseranordnung Divinylbenzol/Carboxen/Polydimethylsiloxan (DVB/CAR/PDMS), for use with autosampler, needle size 23 ga, metal alloy fiber, fiber L 1 cm