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Separation of 8 different preservatives by TLC
Summary
Type: TLCApplication #: 401420
Catalog#: 3715126 - Silica-Cellulose Mix, glass backed, w/UV254, 250um, 20x20cm 25/pk
Detection: UV 254 nm
Conditions: Eluent: petroleum ether(40/60) / carbon tetrachloride / chloroform / formic acid / glacial acetic acid (50:40:20:8:2, v/v, upper phase) Migration distance: 16 cm ascending, 2-fold development, chambe
Authors: Gossele JAW
Source: J Chromatogr 63 (1971) 433
Details
Legend: Compound hRf UV detection limit [µg] Benzoic acid 70 10 Sorbic acid 63.5 0.6 Salicylic acid 56 1.2 Dehydracetic acid 50 5 Bromoacetic acid 30 not visible Propyl p-hydroxybenzoate 24