技術
gas chromatography (GC): suitable
solid phase extraction (SPE): suitable
測試參數
SPE tube/cartridge: Supelclean Sulfoxide SPE Tube, Glass 6 g/20 mL (55252-U)
sample preparation: SPE (Solid Phase Extraction)
column: 5% phenyl polysiloxane (Supelco equivalent, SLB-5ms, 28471-U)
sample addition: transformer oil spiked with PCBs
detector: QMS (For full method details, please see reference (1))
extraction process: Sample Pre-treatment: paraffin oil was spiked with a Kanechlor PCB mix at the total levels of 3.7 ppm (mg/kg) and diluted with hexane (1:1 v/v). (Commercial insulation oil (Japan Industrial Standard JIS C2320-1999, insulating oil, Class 1-2/4).)
condition: 20 mL acetone; 40 mL of hexane
sample addition: 0.4 mL diluted oil sample
elution: 12 mL hexane (elutes oil interferences); 25 mL hexane (elutes PCBs)
eluate post-treatment: concentrate under nitrogen
適合性
application for SPE
應用
environmental
應用
Commercial insulation oil (Japan Industrial Standard JIS C2320-1999, insulating oil, Class 1-2/4, paraffin oil) was spiked with a Kanechlor PCB mix at the total levels of 3.7 ppm (mg/kg) and diluted with hexane (1:1 v/v).
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