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Research notes

Analysis of Hydrosol of Quaking Aspen

17 June 2014

Alexis St-Gelais – Research Notes Two batches of young male flowers of quaking aspen (Populus tremuloides) were submitted to hydrodiffusion. The resulting hydrosol was analysed by gaz chromatography. The main constituents of sample #1 were 1,2-cyclohexanedione, characteristic of poplars, as well as benzyl alcohol and benzoic acid, while sample #2 was dominated by benzyl benzoate.

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Popularization

Chromatography

30 May 2014

Alexis St-Gelais – Popularization Chromatography refers to a wide range of separation techniques, frequently used in the field of analytical chemistry . The principles of chromatography allow PhytoChemia to achieve several of its analyzes. Chromatography is, for every chemist working in organic chemistry, a valuable tool. It brings together all techniques used for separating mixtures of

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Popularization

The importance of plant identification – Part 2

24 January 2014

Hubert Marceau – Popularization Figure 1: A. ursinum (source) In 2004, in the canton of Neufchâtel, Switzerland, clients from a restaurant who ordered fish with a bear’s garlic sauce, Allium ursinum (Figure 1), went on a painful adventure. Shortly after eating they started to have severe gastrointestinal troubles. After analysis, it was found that the sauce contained colchicine, a toxic alkaloid.

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