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CGPTN1-500ML
n-Decylcyclohexane
HPTLC aluminum sheets with "silanized silica" = dimethyl (RP2
AAHO1-500ML
Multi-mode (NP and RP)
Retention gaps, phenylmethyl silylated, low–medium polar 5190-8545 CGPTN1-500MLThe 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