高分辨率连续光源原子吸收测定一次性使用输液器中的镉

Determination of Cd in Infusion Sets for Single Use by High Resolution Continuum Source Atomic Absorption Spectrometry

目的分析和研究采用Contr AA700高分辨率连续光源原子吸收光谱仪,对一次性使用输液器中的镉进行测定。方法应用Contr AA700高分辨连续光源原子吸收光谱仪石墨炉法测定一次性使用输液器中的镉含量。结果 Cd在0.01~0.10μg/ml内线性良好,r为0.999 7,相对标准偏差为0.2%,回收率为98.0%~103.5%。结论采用Contr AA700高分辨率连续光源原子吸收光谱仪测量一次性使用输液器中的镉含量,仪器操作简单,灵敏度高,测量所得到的数据更加精准。

Objective To analyze and study the content of Cd in infusion sets for single use by using Contr AA700 high resolution continuum source atomic absorption spectrometry. Methods Using Contr AA700 high resolution continuum source atomic absorption spectrometry to determine the amount of Cd in infusion sets for single use. Results The results showed that the content of Cd had good linearity in the range of 0.01~0.10 μg/ml（r =0.999 7）, with the relative standard deviation of 0.2%, and the rate of recovery ranged from 98.0% to 103.5%. Conclusion Contr AA700 high resolution continuum source atomic absorption spectrometry was suitable for the determination of Cd in infusion sets for single use, with the advantages of easy operation, high efficiency and good stability.