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目的采用原子吸收光谱法测定氨基酸葡萄糖注射液中钾、钠、钙、镁的含量。方法供试品经稀释后,加入某种特定的原子释放剂,用火焰原子吸收光谱法测定。结果钾、钠、钙、镁标准曲线R值分别为0.999 5,0.997 6,0.999 8,0.999 6,加样回收率分别为98.9%,98.1%,95.6%,97.2%,精密度分别为1.2%,0.7%,0.8%,0.7%,定量限分别为0.009 9μg·mL-1,0.014μg·mL-1,0.076μg·mL-1,0.002 1μg·mL-1。结论该方法简便、快速、灵敏,可作为该注射液中钾、钠、钙、镁含量测定的可靠方法。