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GC Analysis of Phthalate Esters in Corn Oil (Spiked) on SLB®-5ms after SPME with a 100 μm PDMS Fiber

GC Analysis of Phthalate Esters in Corn Oil (Spiked) on SLB®-5ms after SPME with a 100 μm PDMS Fiber suitable for GC, application for SPME

Matériaux

Colonne analytique

Réf. du produit
Description
Tarif

28564-U

SLB®-5ms

L × I.D. 20 m × 0.18 mm, df 0.18 μm

Fibre SPME

Réf. du produit
Description
Tarif

57302

Fibres SPME Polydimethylsiloxane (PDMS)

df 7 μm(PDMS, needle size 24 ga, for use with manual holder

57341-U

Fibres SPME Polydimethylsiloxane (PDMS)

df 100 μm(PDMS, for use with autosampler, needle size 23 ga

57300-U

Fibres SPME Polydimethylsiloxane (PDMS)

df 100 μm(PDMS, needle size 24 ga, for use with manual holder

Produit(s) apparenté(s)

Réf. du produit
Description
Tarif

27162

Vials, screw top, clear glass (vial only)

volume 15 mL, clear glass vial, thread for 18-400, pkg of 100 ea

27165

Bouchon à vis, phénolique, avec orifice

black phenolic hole cap, for use with 15 mL vial with 18-400 thread, pkg of 100 ea

27166

Septa, PTFE havane/silicone

white tan PTFE/silicone, diam. × thickness 16 mm × 0.090 in., for use with 15 mL vial, pkg of 100 ea

57330-U

Support de fibres SPME

for use with manual sampling

57347-U

Support de fibres SPME

for use with CTC CombiPAL and Gerstel MPS2

Étalon

Réf. du produit
Description
Tarif

36617

Diphenyl phthalate

PESTANAL®, analytical standard

36908

Dicyclohexyl phthalate

PESTANAL®, analytical standard

36934

Bis(methylglycol) phthalate

analytical standard

40069

Dimethyl phthalate solution

certified reference material, 5000 μg/mL in methanol

67261

Phthalate de bis(2-éthylhexyl)

certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

18281

Dibutyl phthalate

certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

43540

Diisobutyl phthalate

certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

CONDITIONS

sample/matrix

corn oil spiked with phthalate esters at 500 μg/kg

SPME fiber

100 μm PDMS (57300-U)

extraction

headspace, 95 °C (measured in headspace)

desorption process

260 °C for 4 min

column

F.S. CAP. SLB-5ms 20 m x 0.18 mm I.D., 0.18 μm (28564-U)

oven

60 °C (1 min), 10 °C/min to 330 °C (10 min)

inj. temp.

260 °C

carrier gas

helium, 0.6 mL/min, constant

liner

0.75 mm I.D. SPME

sample

Corn oil

Description

Remarque sur l'analyse

In this application, SPME was used for the analysis of phthalate esters from oily samples, specifically the oil-based flavor packets included with ramen noodle kits. Spiked samples of corn oil and flavored oils included with ramen noodle kits were analyzed using high temperature SPME headspace extraction using a 100 μm PDMS fiber which was then directly desorbed into the GC/MS system. Calibration standards were prepared in corn oil, and spiked samples of chicken and beef oil-based flavors were analyzed. The SLB-5ms GC columns provide consistently low-bleed, inert, efficient, and durable separations.

Informations légales

SLB is a registered trademark of Merck KGaA, Darmstadt, Germany

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