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DL-alpha-Tocopherol
5 g) adsorbent in aluminum bags + 50x filter elements (for NT20)
MSIN-100PPM-125ML
graduation at 15 mL
Calcium 100 mg/l for ICP-MS
Retention gaps, CW (carbowax, polyethylene glycol), polar 039513 DL-alpha-TocopherolThe 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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