[Identification methods of XXXX gum bases using TLC and GC/ @entity15 ].

@entity6399 @entity5730 @entity14521 @entity5498 @entity25164 @entity15
Simple chromatographic methods were applied to @entity25164 resins used as gum bases. Five @entity14521 resins, mastic, dammar resin, olibanum, benzoin gum and elemi resin, and two @entity5730 resins, rosin and copal resin, were separated with normal-phase TLC. Characteristic patterns were observed for all resins. Different samples of the same resin gave identical patterns. The TLC method is a candidate for a simple identification test for @entity6399 resins. Samples were then @entity5498 -esterified and analyzed with GC/ @entity15 . All resins exhibited characteristic chromatograms for total ion current. Major constituents of all resins were detected. Unique constituents that can be used as indicators were found in every resin. Therefore, GC/ @entity15 of @entity5498 -esterified @entity25164 resins is a valuable identification method.
