Ericson S P, McHalsky M L, Jaselskis B
Travenol Laboratories, 6301 Lincoln Ave., Morton Grove, IL 60053, USA.
Talanta. 1987 Feb;34(2):271-6. doi: 10.1016/0039-9140(87)80210-2.
A method is described for molybdenum determination in human serum at sub-ng/ml levels by graphite-furnace atomic-absorption spectrometry. Sample preparation involves a nitric acid digestion, chelation with benzohydroxamic acid and extraction into hexanol. A detection limit of 0.1 ng/ml and a characteristic concentration of 0.18 ng/ml for 1% absorption can be achieved. The effectiveness of the method has been demonstrated by analysis of unspiked and spiked human serum, standard reference materials, and comparison with the results obtained by inductively-coupled plasma atomic-emission spectroscopy.
本文描述了一种采用石墨炉原子吸收光谱法测定人血清中低于纳克/毫升水平钼含量的方法。样品制备包括硝酸消解、与苯甲羟肟酸螯合以及萃取到己醇中。该方法的检测限为0.1纳克/毫升，1%吸收时的特征浓度为0.18纳克/毫升。通过对未加标和加标人血清、标准参考物质的分析以及与电感耦合等离子体原子发射光谱法所得结果进行比较，证明了该方法的有效性。
