RESUMO
The present paper reports the results of determinations of both biogenic (Mn, Fe, Cu, Zn) and toxic (Pb, Hg) metals in the following plant drugs: Herba melissae, Herba urticae, Herba menthae piperitae, Herba equiseti, Herba agrimoniae, Flos tiliae, and Folium betulae. The drugs are used in human medicine in the form of tea both separately or in mixtures. The samples analyzed came from pharmacies, cultivators as well as collection in the nature. The radionuclide X-ray method was used to identify and determine the metals.
Assuntos
Metais/análise , Plantas Medicinais/química , Espectrometria por Raios XRESUMO
In 68 patients (50 men between the age of 18-59, 18 women between the age of 20-53) inflicted by dilatation cardiomyopathy in the stage of severe decompensation (functional NYHA group III-IV, the concentrations of Fe, Zn, Br, and Rb in whole blood were determined by means of radionuclide X-ray-fluorescence analysis. The Fe concentration (X = 401.26 +/- 14.58) was significantly lower (alpha = 0.074), the Zn concentration (X = 8.20 +/- 0.95) was not significantly altered, the trace elements concentration Br (X = 32.30 +/- 4.61) and Rb (X = 4.58 +/- 0.38) were remarkably and significantly higher (alpha = 2.10(-16), resp. alpha < or = 1.10(-16)) when compared with concentrations of these elements in healthy controls. The method of radionuclide X-ray-fluorescence analysis is suitable for element analysis of blood. Its advantages reside in its rapidness, polycomponence, sample nondestructiveness and low requirement of material. (Tab. 3, Fig. 4, Ref. 17.)