New Essential Oil Reference Materials

Matthias Nold Global Product Manager Reference Materials
 

New Essential OilsEssential oils are volatile, hydrophobic liquids obtained from plant material by steam distillation or other extraction techniques. They have been used for centuries for personal care, as pharmaceutical products, or for aromatherapy. The world-wide demand for essential oils as natural fragrances is rapidly increasing, making them an attractive target for adulterations. Thus, cheaper essential oils or even synthetic compounds are added to a material to maximize profits. The detection of such adulterations can be quite challenging. Gas chromatography is most commonly used, but HPTLC is also a very efficient method for quick detection of compounds that are not supposed to be present in the product or to verify the product identity by fingerprint. For this purpose, we exclusively offer a range of essential oil reference materials from HWI pharma services. The products are graded as secondary reference materials, traceable to HWI primary reference materials quantified by qNMR (quantitative NMR). For each product, a mass percentage value is provided for at least one of the major components, while several other key components are qualitatively verified. The leaflet provided with the product also contains a GC method with chromatogram and peak assignment. For new lots, an HPTLC fingerprint of the material is also added.

Recently we added 10 new products to this portfolio, shown in the table below. For the entire product range, please visit SigmaAldrich.com/essentialoils.

 

Table 1. New essential oil reference materials

Cat. No. Description Quantitative Marker Qualitative Marker Package Size
05941501 Bergamot oil Limonene α-Pinene, β-Pinene, Linalool, Limonene, Geranyl acetate 1 mL
06031501 Cinnamon oil Eugenol Linalool, 1,8-Cineole, Eugenol 1 mL
06001501 Dwarf pine oil α-Pinene α-Pinene, β-Pinene, (+)-3-δ-Carene, Myrcene, Limonene 1 mL
05971501 Frankincense oil α-Pinene,
(+)-3-δ-Carene
α-Pinene, (+)-3-δ-Carene, β-Pinene, Limonene, γ-Terpinene, Sabinene hydrate, Terpinen-4-ol 1 mL
05981501 Lemon oil Limonene Limonene, β-Pinene, γ-Terpinene 1 mL
06011501 Mint oil (-)-Menthol,
(-)-Menthone
(-)-Menthol, (-)-Menthone, Limonene, Menthyl acetate, Isopulegol 1 mL
05991501 Pine needle oil α-Pinene α-Pinene, β-Pinene, (+)-3-δ-Carene, Myrcene, Limonene 1 mL
06021501 Sage oil α-Thujone α-Thujone, α-Pinene, D/L-Camphor, Bornyl acetate 1 mL
05961501 Spruce needle oil (-)-Bornyl acetate (-)-Bornyl acetate, α-Pinene, Camphene, (+)-3-δ-Carene, Limonene 1 mL
05951501 Ylang-ylang oil Geranyl acetate Geranyl acetate, Benzyl acetate, Linalool 1 mL