Fragrances Case Studies

Our automotive odour testing is thorough and comprehensive. We will evaluate the whole vehicle interior, to determine the overall odour character of the vehicle.


The ChallengeOur strategy
  • One of our clients wanted to characterise twin fragrances using the olfactometric detection technique (GC-O) by combining chemical and sensory detectors in a single analysis.
  • We had to identify and compare the volatile organic compounds (VOCs) responsible for generating odours in each of the twin fragrances.

Chemical and sensory detection by GC-ToFMS and GC-O.


Results

GC-O analysis made it possible to identify the differences in the VOCs identified in both fragrances such as a-Pinene, α-Acetoxytoluene and D-Limonene/C10H16 terpene. At the sensory level, fragrance A stands out for its sweeter, fruity, citrus, floral and woody olfactory notes.

By means of this analysis technique, the client has the information to reduce cost of product without loss of sensory quality, make fragrance more attractive, change the formula or replace ingredients by cheaper alternatives.

Table 1. Peak area and odour descriptors of VOCs in both fragrances

                        (*) Scale from 1 to 5: 1, very low; 2, low; 3, medium; 4, strong; 5, extremely strong

Figure 2. Quantitative graph of compounds associated with an odour in both fragrances

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