Perfume Analysis

FACH2702 Practical Analysis of dupery marrows Aim To determine which out of 4 unknow try outs ar genuine smells, and which are sham/fake odourises. This will be done by analysing gas chromatography plots, and comparison the components in the samples to that of a known stock(a) perfume. Results To determine which of the quad sample perfumes where postiche and which were substantial, components present in each perfume were analysed apply gas chromatography and compared to the known real perfume sample. The components identified for comparison include vanillin, 3-penten-2-one, diethyl phthalate and cyclopentanaecetic acid.The sex act concentration of each of the components in the samples was calculated for comparison. In the defy sample, the intercourse concentration of each of these components were calculated using the area under each of the peaks (appendix 3) The akin was done for unknown perfume sample 1 and it was found that while the relative concentrations of eac h component were close to the control perfume, they were not close enough to shut that the sample was a real perfume, (however a really good rip off). (appendix 4)After analysing perfume sample 2, we could conclude that this sample was an imposter perfume as there was a significant increase in some(prenominal) 3-pentan-2-one and cyclopentanaecetic acid, to substitute for the loss in diethyl phthalate. (appendix 5). warning 3 showed relative concentrations of each tangled that were really close to the control sample, therefore it was classed as a real perfume (appendix 6) It was found that sample 4s relative concentrations of each component were whole off that of the control perfume, hence it is an imposter perfume. appendix 7) Discussion There werent many areas for flaws in this practical that would be attributed to our own human error. The gas chromatographer itself was very repeatable and hence the only error in the computers results would be due to a calibration error. Another error in this experiment could be linked to the grooming of the samples, some components in the perfumes are very volatile and hence if the cap were left field off the perfume, concentrations of those components would decrease, altering the detection during analysis.Conclusion victimisation Gas chromatography, the components vanillin, diethyl phthalate, 3-pentan-2-one and cyclopentanaecetic acid were analysed in four samples and their relative concentrations were calculated and compared to a known control perfume sample. From these calculations, it was concluded that samples 1,2 and 4 were imposter perfumes, while sample 3 had very similar relative concentrations of its compounds and was hence classed as a real perfume.