Applications

Analgesics, Pharmaceutical Formulations

Isopropylphenazone, Ortho Ethoxybenzamide Caffeine, Mandelic Acid Benzyl Ester - Alumina

	Operating Conditions Sample Dissolved in: iso-octane/methylene chloride Adsorbent Used: DAI Alumina Stationary Phase: acetic acid 2% Eluent: iso-octane: methylene chloride = 95.5 Sample Volume: 0.2 ml Flow rate: 10 ml/min Operating Pressure: 28 psi Column Size: 9mm x 300 mm Temperature: 20ºC Detection: UV detector 251 nm
	Substances Separated Sample (mg) Retention Volume (ml) 1. isopropyl phenazone 0.05 35 2. o-ethoxybenzamide 0.30 55 3. caffeine 0.24 115 4. mandelic acid benzyl ester 0.40 ∞

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