人发中20种痕量元素的中子活化分析

Determination of20Trace Elements in Human Hair by NAA

探讨了用反应堆中子活化分析 (NAA)同时测定人发中20种痕量元素的方法 ,其中包括部分测试难度较大的镧系、锕系元素 ;方法的检出限为10-6～10-14g ,相对标准偏差 (RSD ,n=11)<10 %,选用美国国家标准局推荐的标准物质 (NBS_SRN)进行对照 ,取得了满意的结果。

Neutron activation analysis was employed for the simultaneous determination of20trace elements in human hair.These elements included lanthanides and actinides,which are difficult for detection.Detection limits of10 -6 ～10 -14 and RSD less than10%were obtained for the method.Determination results of USA reference substance NBS-SRN satisfactorily agreed with the recommended values.