Liang L, D'Haese P C, Lamberts L V, De Broe M E
Department of Nephrology-Hypertension, University of Antwerp, Belgium.
Clin Chem. 1991 Mar;37(3):461-6.
We describe a direct-calibration method for determining aluminum in bone and soft tissues by graphite furnace atomic absorption spectrometry. Aluminum in bone was determined in uncoated tubes, whereas the analytical performance in soft tissue analysis was markedly improved by using pyrolytically coated tubes with a L'vov platform and added calcium. The analytical imprecision (CV) was less than or equal to 5.4% for aluminium concentrations between 12 and 98 micrograms/L, and analytical recoveries of added analyte varied between 94.5% and 103.0%. Detection limits (2 SD of determinations of the zero standard) were 7 and 6 pg for bone and soft tissues, respectively. Characteristic masses (amounts of Al yielding an absorbance signal of 0.0044 A) were 9 and 8 pg, respectively.
我们描述了一种通过石墨炉原子吸收光谱法直接校准测定骨骼和软组织中铝含量的方法。在未涂层的试管中测定骨骼中的铝，而使用带有热解涂层管和L'vov平台并添加钙的情况下，软组织分析的分析性能得到显著改善。对于12至98微克/升的铝浓度，分析不精密度（CV）小于或等于5.4%，添加分析物的分析回收率在94.5%至103.0%之间变化。检测限（零标准测定的2倍标准差）骨骼和软组织分别为7皮克和6皮克。特征质量（产生0.0044吸光度信号的铝量）分别为9皮克和8皮克。
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