• British Pharmacopoeia Volume V
  • Appendices
  • Appendix I A. General Reagents

Silica Gel for Chromatography R1, Octadecylsilyl
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Silica Gel for Chromatography R1, Octadecylsilyl

A very finely divided ultrapure silica gel, chemically modified at the surface by the bonding of octadecylsilyl groups. The particle size, the pore size and the carbon loading are indicated after the name of the reagent in the tests where it is used. Less than 20 ppm of metals.