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Extraction of PCBs from waste oil (hexane extract)
graduation at 15 mL
5 g) adsorbent in aluminum bags + 50x filter elements (for NT20)
ALUGRAM Xtra
Retention gaps, CW (carbowax, polyethylene glycol), polar 039513 Extraction of PCBs from wasteThe retention gap technique in combination with on column injection allows concentration of a large sample volume in the capillary column. Retention gaps consist of uncoated (no stationary phase), deactivated fused silica capillary tubing. A retention gap must be inert without any noticeable retention (analytes are not retained). Carbowax (CW, polyethyleneglycol, polar) deactivated is suitable for direct aqueous injection. Improve peak shape by
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