摘要
采用仪器中子活化法(INAA)测定了金属钛中锰、砷、锑、钽、钨等5种痕量杂质元素含量,分析中采用GEM 70P高纯锗γ谱仪及grammavision 32分析软件。经预处理的样品割成5mm×5mm×1mm大小的薄片,其质量约180mg,与标准一起置于反应堆中照射,中子通量为1.0×10^(13)cm^(-2)·s^(-1)。上述5种元素的探测下限依次为0.022,0.049,0.032,0.097,0.015μg。将方法用于分析水沉积物标准物质(GBW 07312),锰、钽、锑及钨4种元素的测定值与证书值相符。
Five impurity elements of Mn.As,Sb,Ta and W in metal titanium were determined by INAA. The GEM 70P High-purity GeγSpectrometer and the analytical software of Grammavision 32 were used in the analysis.The pretreated sample,in form of a thin piece sized 5 mm×5 mm×1 mm and weighing ca.180mg,was irradiated together with standards in the reactor with a flux of 1.0×10^13cm^-2·s^-1.Detection limits of the 5 elements were found as 0.022.0.049.0.032.0.097 and 0.015μg respectively.The proposed method was used to analyzed a CRM of water sediment（GBW 07312）giving results of Mn,Ta,Sb and W in consistency with the certified values.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2011年第4期424-426,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
中国工程物理研究院预研基金资助项目(421050401-202)
