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|Type:||Artigo de periódico|
|Title:||Enhanced stability stationary phases based on poly(methyltetradecylsiloxane) immobilized onto doubly titanized silica particles|
|Abstract:||This work describes the preparation and characterization of two stationary phases based on the immobilization of poly(methyltetradecylsiloxane) onto doubly titanized silica particles. Chromatographic tests indicate that these metallized silica-based stationary phases present similar chromatographic performance for apolar and polar compounds to those obtained for their bare silica-based counterparts. Spectroscopic characterizations indicate high residual silanol quantities on titanized silica-based stationary phases; however, this fact does not contribute to a high asymmetry factor for basic compounds as is usually found with titania-based stationary phases. These stationary phases may be useful for analysis of pharmaceuticals.|
|Subject:||column liquid chromatography|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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