Aeroscena® Quality Standards
Chromatography, Spectrometry and Aromatography
Gas Chromatography (GC):
Gas phase chromatography is carried out by a gas chromatograph (shown on the left), which enables the identification of molecules present in an essential oil. The machine analyzes the oil by passing it as a vapor through the machine. The resulting graph provided by the chromatograph includes a series of peaks, each of which represents a specific aromatic molecule that has been identified by the chromatograph's software.
Mass Spectrometry (MS):
The mass spectrometer determines the relative proportion of each of the molecules that make up an essential oil (its quantitative composition).
This photo shows a mass spectrometer that has been paired with a gas chromatograph, which enables our labs to determine the types of molecules present in an essential oil, as well as the amount of each molecule. Any oil that does not meet our stringent purity standards will not make it into an Ascents®-branded product.
The aromatogram measures the anti-bacterial power of essential oils. It is the same process used to measure the bactericide activity of antibiotics. The oil is introduced into the center of a bacteria-laden petri dish. A clear zone indicates the bactericidal activity of the oil. The greater the diameter of the zone, the higher the efficacy of the oil.