Chromatographic Fingerprinting Based on Column Switching Technology for Quality Evaluation of Tianmeng Oral Liquid

Figure 2

Separation results of different coupled columns by column switching technology. (a) Phenomenex Synergi Hydro-RP C18 (4 μm, 250 × 4.6 mm) and JADE-PAK C8 (3.5 μm, 50 × 4.6 mm), (b) ACE EXCEL C18 (5 μm, 250 × 4.6 mm) and JADE-PAK C8 (3.5 μm, 50 × 4.6 mm), (c) JADE-PAK C8 (5 μm, 150 × 4.6 mm) and JADE-PAK ODS-AQ (5 μm, 150 × 4.6 mm), (d) JADE-PAK C8 (5 μm, 150 × 4.6 mm) and Sharpsil-U C4 (5 μm, 150 × 4.6 mm), and (e) ACE EXCEL C18 (5 μm, 250 × 4.6 mm) and JADE-PAK C8 (5 μm, 150 × 4.6 mm).