USP L1 Octadecylsilane chemically bonded to porous or non-porous silica or ceramic microparticles, 1.5 to 10μm in diameter, or a monolithic rod Widely available

L1 Octadecylsilane chemically bonded to porous or non-porous silica or ceramic microparticles, 1.5 to 10μm in diameter, or a monolithic rod
Widely available