Resumen

SAAVEDRA A, Oswaldo R  y  RANDON, Carlos E. Determination of germanium in leaves exudate samples of Aloe vera (L.) Burm. f. (zábila), by electrothermal atomic absorption spectrometry. INHRR [online]. 2011, vol.42, n.2, pp.18-24. ISSN 0798-0477.

The objective of this work was to determine the concentration of germanium in Aloe vera (zábila) from leaves exudated, using the electrothermal atomic absorption spectrometry analytical technic (ETAAS). The exudated is a yellow and bitter liquid, used in wounds healing, skin irritations, mouth infections, etc. The germanium is a trace element used as immunestimulant in patients with tumour. A concentration of 7.42 ± 2.33 μg/g was found. The method for the determination of germanium was validated by recovery studies, a value of 97.43 ± 2.22% was obtained for germanium, and the relative standar deviation (RSD%) was 2.88%. The method was exact, precise and free from interferences.

Palabras clave : Germanium; ETAAS; Aloe vera; zábila; Aloe vera (L.) Burm. f.