GC Analysis of PCBs in Transformer Oil on SPB^®-5 after SPE using Supelclean^™ LC-Florisil^® and LC-Si

Name: GC Analysis of PCBs in Transformer Oil on SPB®-5 after SPE using Supelclean™ LC-Florisil® and LC-Si
Brand: SUPELCO

suitable for GC, application for SPE

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About This Item

技术

gas chromatography (GC): suitable
solid phase extraction (SPE): suitable

试验参数

sample preparation: SPE (Solid Phase Extraction)
sample/matrix: used transormer oil containing 50 ppb Aroclor 1254.
SPE tube/cartridge: Supelclean LC-Florisil, 1.0 g/6 mL (57057)
SPE tube/cartridge: Supelclean LC-Si, 1.0 g/6 mL (57051)
condition: 0.5 mL isooctane (Florisil tube)
sample addition: 0.2 g transformer oil or 0.1 g waste oil
washing: 5 x 2 mL isooctane
column: SPB-5, 30 m × 0.32 mm I.D., 0.25 μm film (24048)
oven: 40 °C (4 min) to 300 °C at 10 °C/min, hold 5 min
detector: ECD
carrier gas: nitrogen
injection: 1 μL, splitless (30 sec delay), then split (50:1)

适用性

application for SPE

应用

environmental

应用

Connect Supelclean LC-Si SPE tube (1 g/6 mL) in series to male luer outlet of Supelclean LC-Florisil SPE tube (1 g/6 mL) using an SPE Tube Adapter (57020-U). Apply up to 0.2 g transformer oil or 0.1 g waste oil to upper frit of Florisil SPE tube. Pass 5 x 2 mL isooctane through both Florisil and LC-Si SPE tubes. Oil interferences will be retained on SPE tubes whereas PCBs will elute with isooctane fractions. Collect and combine isooctane fractions using 10 mL volumetric flask. Analyze isooctane extract using GC-ECD.