Skip to main content
Journal of Analytical Science and Technology
Fig. 3 | Journal of Analytical Science and Technology

Fig. 3

From: Organic polymer monolithic columns with incorporated bare and cyano-modified fumed silica nanoparticles for use in hydrophilic interaction liquid chromatography

Fig. 3

Chromatograms of some food additives (a), vitamins (b), and biological amines (c) obtained on FSNPs-poly(GMM-co-EDMA) monolithic column. Separation conditions: column, 10 cm × 4.6 mm i.d. at 0.6 mg of FSNPs/cm; flow rate, 1 mL/min; injection volume, 20 μL; column temperature, room temperature. For a, mobile phase, 90% ACN (v/v), 10% of 10 mM ammonium acetate, pH 3.0 (v/v); solutes: 1, benzoic acid; 2, maleic acid; 3, ascorbic acid; t0, phenyl heptane. For b, mobile phase, 90% ACN (v/v), 10% of 10 mM ammonium acetate, pH 6.0 (v/v); solutes: 1, nicotinamide; 2, riboflavin; 3, thiamine; t0, toluene. For c, mobile phase, 95% ACN (v/v), 5% of 200 mM ammonium acetate, pH 5.0 (v/v); solutes: 1, (±)-phenylpropanolamine; 2, (±)-propranolol; 3, (±)-ephedrine; t0, phenyl heptane

Back to article page