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PhytoChemia Acta

Tag: GC analysis

Oil Profiles: Mandarin (Expressed)

20 June 2017

Alexis St-Gelais, M. Sc., chimiste Mandarin fruit (Citrus nobilis) essential oil is an aromatic delicacy. By experience, we observe that it regularly is either adulterated or confused with other citruses. Chemically, there are a few good keypoints to look for that will tell if a mandarin oil is genuine. We also provide an annotated typical […]

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Synthetic Methyl Salicylate and You

12 June 2017

Alexis St-Gelais, chimiste Essential oils are worth quite a lot of money. It so happens that, in order to boost profits, unscrupulous people alter oils in various ways. This “Adulterants and you” series is there to introduce you to some of the adulterations we encounter. This is because not all of them are necessarily obvious, […]

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Do It Faster, Makes Us Stronger – Fast GC

11 May 2017

Benoit Roger, Ph. D., & Alexis St-Gelais, M. Sc., chimiste We have read many times on various oils-oriented Facebook groups indications that gas chromatographic columns should be as long as possible to achieve proper separation. Similarly, it is often stated that short analysis runs negatively impact the quality of data obtained. And under the most […]

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Oil Profiles: Frankincense, type serrata

18 April 2017

Alexis St-Gelais, M. Sc., chimiste Boswellia serrata grows in India, as opposed to most other commonly sold frankincense species which rather grow in the Horn of Africa and the southern Arabic peninsula. Frankincense serrata is not only segregated from a geographical point of view, but also differs from the other frankincenses chemically. This is reflected in […]

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