ISSN:
1573-1561
Keywords:
Graphite furnace
;
heavy metals
;
chemoprints
;
Delia radicum
;
Diptera
;
Anthomyiidae
;
surface adsorption
;
oxidation states
;
metal cations
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Graphite furnace and flame atomic absorption spectroscopy were used to make quantitative determinations of a range of metallic cation contents of wet-ashed female individuals ofDelia radicum (L.) from a laboratory culture reared under controlled conditions and freeze-dried upon emergence. Analyses were done for seven elements: Fe, Zn, Cu, Pb, AI, Mg, and K. The quantities of K and Mg present were positively related to the dry weight of individual flies, while the others showed an exponential decrease in concentration with increasing fly weight. This difference is attributed to the different roles of surface adsorption of metals with higher oxidation states and the high absorption efficiencies of those existing as oxidation states 1 and 2. The weight of the insect is therefore a major factor in determining the individual's chemoprint. The implications of this observation for other studies are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01014825
Permalink
