Department of Biological Sciences, Plymouth Polytechnic, PL4 8AA, Devon, England.
J Chem Ecol. 1989 Apr;15(4):1231-9. doi: 10.1007/BF01014825.
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.
采用石墨炉和火焰原子吸收光谱法，对在控制条件下培养的实验室饲养的雌性根蛆（Delia radicum （L.））个体的湿灰化后进行了一系列金属阳离子含量的定量测定，并在成虫后进行了冷冻干燥。分析了七种元素：铁、锌、铜、铅、铝、镁和钾。存在的 K 和 Mg 量与个体蝇的干重呈正相关，而其他元素的浓度则随蝇重的增加呈指数下降。这种差异归因于具有较高氧化态的金属表面吸附和以 1 和 2 氧化态存在的金属的高吸收效率的不同作用。因此，昆虫的体重是决定个体化学指纹的主要因素。对其他研究的这一观察结果的意义进行了讨论。
