Determination of Aluminum Impurities in Fat Emulsion Injection by ICP-AES
Objective:To establish a ICP-AES method for the determination of aluminum impurities in fat emulsion injection.Methods:After the sample was diluted,ICP-AES method was used to determine the content of aluminum impurities in fat emulsion injec-tion.The standard curve method was used to calculate aluminum content.Results:The linear range of aluminum was 0-200 μg·L-1,and the correlation coefficient was 0.999 93.The RSD of repetitive experiments was 2.0％.The detectiong limit of the method was 1.22 μg·L-1.The quantitation limit of the method was 4.07 μg·L-1.The average value of sample recovery rate was 107.7％with RSD of 2.7％(n=6).Conclusion:The method was convenient,sensitive,accurate and good repeatability,which can be used for the determination of aluminum impurities in fat emulsion injection.
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