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本文应用石墨炉原子吸收光谱法对各种石墨管测铬进行了比较。热解石墨管可提供较好的灵敏度(4.86pg/0.0044A)和检出限(0.418μg/L),可用于血清铬的测定。血清样品经HClO_4-H_2O_2-HCl消化处理后,以工作曲线法测定。结果是健康人血清铬为8.16±4.30μg/L(13例),糖尿病人3.10±1.92μg/L(13例)。令人满意。
In this paper, Graphite Furnace Atomic Absorption Spectrometry (Graphite Furnace Atomic Absorption Spectrometry) was used to compare chromium measured by various graphite tubes. Pyrolytic graphite tubes provide good sensitivity (4.86pg / 0.0044A) and detection limit (0.418μg / L), which can be used for the determination of serum chromium. The serum samples were digested with HClO_4-H_2O_2-HCl and determined by working curve method. As a result, the serum levels of chromium in healthy subjects were 8.16 ± 4.30 μg / L (13 cases) and those with diabetes were 3.10 ± 1.92 μg / L (13 cases). Satisfactory.