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目的:建立原子吸收光谱法测定玻璃输液瓶的锑浸出量方法。方法:样品液直接用石墨炉原子吸收光谱法测定,加入基体改进剂氯化钯和硝酸镁,优化石墨炉加热程序中的灰化温度、原子化温度。结果:锑在1～30μg·L~(-1)范围内线性良好(r=0.999 2),检出限为0.425μg·L~(-1),回收率为98.2%(RSD=1.3%,n=9)。结论:该方法简便、快速准确、灵敏度高。
Objective: To establish a method for the determination of antimony leaching in glass infusion bottles by atomic absorption spectrometry. Methods: The sample solution was directly determined by graphite furnace atomic absorption spectrometry. Palladium chloride and magnesium nitrate as matrix modifiers were added to optimize the ashing temperature and atomization temperature in the graphite furnace heating process. RESULTS: The detection limit was 0.425 μg · L -1 for antimony in the range of 1 ~ 30 μg · L -1 (r = 0.999 2) and the recovery was 98.2% (RSD = 1.3% n = 9). Conclusion: The method is simple, rapid, accurate and sensitive.