| 초록 |
The ultrasonic-assisted extraction of three organic aicds from Salicornia herbacea was studied at various conditions. An amino imidazolium ionic liquid-based cartridge was prepared and developed for the selective extraction material. The optimum extraction condition was obtained: methanol extracted of 1 h, and ultrasonic power was 75 W. HPLC analysis occurred with mobile phase of acetonitrile/H2O/CH3COOH (15/85/0.05, v/v/v) and flow rate of 0.8 mL min-1. Solid phase extraction (SPE) recoveries of three organic acids were ranging from 76.5 % to 89.3 with inter- and intra-day relative standard deviations less than 5%. The results showed that, this SPE cartridge showed high affinity and selectivity to these organic acids. |
