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  • Author or Editor: E. Genova x
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The surface flavonoid distributions of 20 samples of 12 Salvia species originating from Hungary or Bulgaria were surveyed. The majority of the flavonoids proved to be flavones. The most common constituents of the exudates were apigenin, luteolin and scutellarein 6,7,4'-trimethyl ether (salvigenin). Flavonols were found only in S. ringens. No significant variation in flavonoid profile was observed between the samples with different origins. The flowers of the plants studied were richer than the leaves and stems in flavonoids.

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Abstract  

Multielemental analysis of atmospheric particulates collected on filter paper has been investigated using different radioisotopic exciting sources. Quantitative determinations for zinc and lead during a one year period are reported.

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Abstract  

The following elements: Cr, Zn, Co, Cd, Mn, V are determined in a sample of NBS (spinach) which has to be certified as a new standard. Both neutron activation analysis and atomic absorption spectrometry are used; a good agreement is foudn among the different techniques. Different procedures of samples chemical dissolution are compared.

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The development of a trace element fingerprint as obtained by trace element determination and data reduction has been successfully applied to clear out correlations and similarities among objects of archaeological interest. In the present paper instrumental neutron activation analysis and statistical data treatment were used to solve two archaeological question: (1) the search of white marble quarries which Etruscans were used to exploit to manufacture monuments and sculptures; (2) the search of similarity, and possibly of provenence, among pottery fragemets excavated in Sardinia and belonging to the eneolithic period. Trace element matrices are presented and discussed. Data treament, such as rare-earth element pattern and pattern recognition procedures, is reported and discussed.

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