Analysis Department;
National Institute of Research and Development for Chemistry and Petrochemistry - ICECHIM;
202 SplaiulIndependentei;
Bucharest 6;
Romania;
Valahia University;
Targoviste;
18-20 Blvd. Unirii.;
Targoviste;
Romania;
National Institute Victor Babes;
99-11 Splaiul lndependentei;
Bucharest;
Romania;