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[The influence of the packaging on the storage qualities of the volatile substances]
V D Isakov1, T V Gorbacheva2, M B Fokin2
1Saint-Petersburg state budgetary institution 'Bureau of Forensic Medical Expertise', Saint-Petersburg, Russia, 195067; Department of Forensic Medicine, I.I. Mechnikov North-Western State Medical University, Ministry of Health of the Russian Federation, Saint-Petersburg, Russia, 195067.
Abstract:
The objective of the present study was to evaluate the storage qualities of the acetone and ethanol aqueous solutions kept in the polyethylene flasks, polypropylene and glass tubes that were stored under different environmental temperature. It was shown that the acetone aqueous solution better retained its properties when stored in glass vials at room temperature as well as at 0° C and 4° C. The most pronounced decrease of acetone concentrations (from 70 up to 95%) was documented after its storage in the polyethylene flasks. The ethanol concentration fell down by 40% when stored in polyethylene flasks at room temperature.
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