On-site identification of adulterated diesel using Cora 100
Cora 100 can be used to identify adulterated diesel samples by their unique chemical fingerprint
Each producing facility occasionally faces a problem that the produced material does not fulfill the specifications, an out-of-spec situation (OOS). The analysis of production processes and material flows in such cases shows quite often that the OOS is caused by the use of either wrong or sub-standard raw materials. It is not unusual that a supplier delivers mislabeled or low-quality raw materials. The processing of such materials leads to substandard products accompanied with high costs. In order to avoid such monetary losses the operator of the plant can implement procedures for the verification of all incoming goods. One of the analytical techniques, which can be utilized in this case, is Raman spectroscopy. Handheld Raman instruments like Anton Paar’s Cora 100 are particularly suitable as they are characterized by a small footprint, short measurement times as well as simple and user-friendly operation. The instrument can be utilized by the warehouse employee for raw material identification directly in the warehouse. The analysis can be performed through the packaging without any sample preparation within seconds. This enables a significant time and cost saving as compared to the wet-chemical techniques for raw material analysis such as GC or HPLC. Use of the Anton Paar Cora 100 handheld Raman instrument is demonstrated in the present report covering the example of diesel verification.
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