Pinheiro T, Duflou H, Maenhaut W
Instituut voor Nucleaire Wetenschappen, Rijksuniversiteit Gent, Belgium.
Biol Trace Elem Res. 1990 Jul-Dec;26-27:589-97. doi: 10.1007/BF02992715.
A microwave acid digestion method for the preparation of biological samples for PIXE analysis is presented. The precision and accuracy of the entire PIXE analytical procedure, including the microwave digestion step, were evaluated by analyzing eight certified reference materials. For elements heavier than K, and for concentration levels from 2 micrograms/g upward, the total random error of a single analysis is in the range of 2-5%. The accuracy is better than 5%. The detection limits are down to 0.3 micrograms/g.
本文介绍了一种用于制备用于质子激发X射线发射（PIXE）分析的生物样品的微波酸消解方法。通过分析八种标准参考物质，评估了整个PIXE分析程序（包括微波消解步骤）的精密度和准确度。对于比钾重的元素以及浓度水平在2微克/克及以上的情况，单次分析的总随机误差在2%至5%的范围内。准确度优于5%。检测限低至0.3微克/克。
