## Abstract Ethoxylated alcohol sulfates were analyzed without derivatization by capillary electrophoresis (CE) using a borate buffer with 1 mM potassium dichromate and 30% (v/v) acetonitrile. The feasibility of using the technique for separation of raw materials (Neodol 23–2A) and commercial produ
Rapid characterization of fatty alcohol ethoxylates by non-aqueous capillary electrophoresis
✍ Scribed by Mónica Arias; Roberto Bauza; Juana Rodríguez; Gregorio Castañeda; Ángel Ríos
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 387 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0173-0835
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Buffer: 50 mM ammonium acetate-13.75 mM ammonia in water (1) or in methanol (2). Voltage: À25 kV in (1) and 25 kV in (2). Temperature: 25°C; wavelength: 280 nm; capillary: uncoated fused capillary (44 cm; 50 mm i.d.).
A non-aqueous capillary electrophoretic method was established for the determination of berberine in Rhizoma coptidis and its preparations. The effects of organic solvent and the concentrations of sodium acetate were studied, which showed that berberine in extracts of traditional Chinese medicine ca
A simple, rapid, reproducible, and universal non-aqueous capillary electrophoresis method has been developed for the separation and determination of three major active protoberberine alkaloids including berberine, palmatine, and jatrorrhizine within 7 min. The effects of the concentrations of acetic