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DETERMINING THE CONCENTRATION OF METHANOL FROM NATURAL DISTILLATE


DOINA MOALES, ADRIAN FLORIN SPAC, MARIA PRISECARU, ELENA BUTNARU

Issue:

SCSB, Volume XIX

Section:

Volume XIX - Animal Biology

Abstract:

The study was done on 98 samples of brandy and plum brandy taken from Moldavia between 2007 and 2009, to determine the methanol concentration from the natural distillates. The samples were analyzed using an Agilent Technologies 7890 chromatography gas coupled with an Agilent Technologies 5975 C mass spectrometer, the mobile phase being represented by helium and the stationary phase by a Zebron – Phenomenex ZB- WAX plus chromatography column. Out of the 98 samples of brandy, 19 had a higher concentration of methanol than the working standards. The methanol concentration was related to 100 ml anhydrous ethanol. Depending on the material from which it was treated, the fruit mixture brandy represents 42% from the share of the samples with an exceeded methanol concentration, the marc 32% and the plum brandy 26%. The place where the most samples with an exceeded methanol concentration can be found is Comanesti- Bacau, followed by Blagesti - Bacau and Straoanu - Bacau.

Keywords:

methanol, chromatography gas, brandy, methanol concentration.

Code [ID]:

SCSB201019V19S01A0008 [0003268]

Full paper:

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