| 摘要 |
Preparation for haemoperfusion or consists of silica gel (I). The silica gel is reversed phase siliceous gel of about 10 nm pore size dia. and 40-60 micrometer particle size with a non-polar hydrophobic surface. The hydrophobic silica can be prepd. by reacting silica gel alkyl chlorosilanes to insert hydrophobic groups on its surface. Suitable alkylchlorosilanes are Cl2Si(CH3)2, Cl2Si(C4H9)2, Cl2Si(CH3)C10H21, Cl2Si(CH3) C18H37 and Cl3SiC18H37. A suitable available hydrophobic silica is Lichroprep RP-18 (RTM, Merck Co.).
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