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More than Analyses, Advices.Plus que des analyses, des conseils.

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GC Analysis – Part VIII. Calibrated Compound Quantification

17 September 2015

Alexis St-Gelais, M. Sc., chimiste – Popularization Although it constitutes a large part of our activities at PhytoChemia, essential oils analyses are in fact a special case for chemists. Indeed, it is one of the only cases (along with hydrosols, fatty acids methyl esters and a handful of other applications) where the approximation “concentration ≈ %

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Ethylhexyl palmitate and you

31 August 2015

Alexis St-Gelais, M. Sc, Chimiste – Popularization 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

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Question from the public: Phthalates contamination in essential oil

4 June 2015

 Hubert Marceau, chemist, B.Sc. I have recently been asked if it was possible that diethyl phthalate be naturally present in an essential oil, more precisely in a Cyperus scariosus sample where about 5% of DEP was detected. Here is our answer:  Bioaccumulation of DEP in plant. There have been a nice review, a bit aged

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Aromatherapy: Is it easy to know if essential oils are safe ?

20 April 2015

Laurie Caron, chemist, M.Sc. – Popularization  In the last few weeks, I saw many discussions on LinkedIn/Facebook groups about aromatherapy. Some people seem to be highly concerned by this subject and they want to know how to use essential oils safely. So, I asked myself what was my knowledge about this topic? First of all,

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GC Analysis – Part VII. Hydrosol Analysis

15 March 2015

Alexis St-Gelais, M. Sc., chimiste – Popularization We have previously seen a worked example of essential oil analysis. Hydrosols can be analysed in about just the same way as essential oils. Yet, there is one huge difference between a pure essential oil and an hydrosol: the latter is always a solution. This implies some specific

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Quality Control 101, Part I. Third Party Testing is Good for You

14 February 2015

Alexis St-Gelais, M. Sc., chimiste – Popularization Any business in the field of natural substances production (encompassing health products, extracts, refined phytochemicals, herbs, essential oils, and anything comprising one of these ingredients) will eventually have to take a stand about the kind of quality control that should be performed on its products. In many cases,

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