Surface functionalization of silica microparticles for capillary electrochromatography (CEC)
- Sandia National Labs., Livermore, CA (United States)
We derivatized small (0.5 -3 {mu}m) silica particles by silating their surfaces with long-chain alkyl substituted silanes. These functionalized particles were packed into 100 {mu}m capillaries and used as stationary phases for capillary electrochromatography. The particles supported electroosmotic flow in mixtures of acetonitrile and aqueous buffer (4 mM sodium tetraborate or 2mM TRIS). The columns were used to separate mixtures of organic analytes demonstrating the effectiveness of the functionalized stationary phase.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 477613
- Report Number(s):
- SAND--97-8228; ON: DE97052190
- Country of Publication:
- United States
- Language:
- English
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