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23964-58-1
C21 Ring-C Monoaromatic sterane (5β(H)
CGPB1-125ML
8 mL each of blue 1
Alkylation
Retention gaps, phenylmethyl silylated, low–medium polar pH 7 YELLOW 23964-58-1The 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). Phenylmethyl (low medium polar) deactivated tubing as an additional choice of surface deactivation. Improve peak shape by
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