401440 Separation of benzoic acid derivatives used as preservatives

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Separation of benzoic acid derivatives used as preservatives

Summary

Type: TLC
Application #: 401440
Catalog#: 3114156 - Silica CN HPTLC Plates, w/UV254, glass backed, 200um, 10x10cm 25/pk
Detection: TLC scanner, UV 254 nm
Conditions: Eluent: ethanol / water / glacial acetic acid (20:80:0.2) with 0.1 mol/l
tetraethylammonium chloride
Migration distance: 7.3 cm in 30 min
Sample volume: 400 nl
Authors: TLC department
Source: TLC department


Details


Legend: Peaks: 1. Propyl p-hydroxybenzoate 2. Ethyl p-hydroxybenzoate 3. Methyl p-hydroxybenzoate 4. Benzoic acid 5. Sorbic acid