Devices: Beckman system (p / ace system 2050) using geol software (version 7.11 U); Capillary: Silice (TSPO 50375), 50 [mu] m x 97 cm; Buffer: 2M formic acid; Coated solution, 5% p / v hexadimethrene bromide and 2% v / v ethylene glycol aqueous solution; Detector: UV (200 nm)...