GC Analysis of Phthalate Esters in Corn Oil (Spiked) on SLB®-5ms after SPME with a 100 μm PDMS Fiber
材料
SPME 光纤
SPME 纤维组件聚二甲基硅氧烷 (PDMS)
7 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, green hubSPME 纤维组件聚二甲基硅氧烷 (PDMS)
100 μm PDMS, Fused Silica (1 cm), needle size 23 ga, Autosampler, pk of 3, red hubSPME 纤维组件聚二甲基硅氧烷 (PDMS)
100 μm PDMS, Fused Silica (1 cm), needle size 24 ga, Manual Holder, pk of 3, plain red hub分析色谱柱
标准
邻苯二甲酸二(2-乙基己)酯
certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland邻苯二甲酸二丁酯（驱蚊叮）
certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland邻苯二甲酸二异丁酯
certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland相关产品
棕褐色 PTFE/硅胶隔垫
white tan PTFE/silicone, diam. × thickness 16 mm × 0.090 in., for use with 15 mL vial, pkg of 100 eaCONDITIONS
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
说明
分析说明
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.
法律信息
SLB is a registered trademark of Merck KGaA, Darmstadt, Germany