CAJ | 학술논문

采用铬天青S分光光度法测定贮氢合金中的铝.最大吸收波长为548 nm,表观摩尔吸光系数为5.24×104 L/(mol·cm),铝含量在0～0.3μg/ml时有良好的线性关系,绘制标准曲线时加入的镍的含量与样品相近,可消除镍的干扰.本方法简单、快速、准确、精密度高,用于贮氢合金中铝含量的测定,结果满意,RSD＜1.4%,回收率为98%～102%.
채용락천청S분광광도법측정저경합금중적려.최대흡수파장위548 nm,표관마이흡광계수위5.24×104 L/(mol·cm),려함량재0～0.3μg/ml시유량호적선성관계,회제표준곡선시가입적얼적함량여양품상근,가소제얼적간우.본방법간단、쾌속、준학、정밀도고,용우저경합금중려함량적측정,결과만의,RSD＜1.4%,회수솔위98%～102%.
Chrome azurol S spectrophotometry was used to determine aluminum(Al)in hydrogen storage alloy.The absorption maxima lay at 548 nm and its apparent molar absorptivity was 5．24×104 L/(mol·cm)．There was a good linear relation within the Al content of 0～0.3 μg/ml.When drawing the standard curve,close amount of nickel(Ni)to the sample was added to eliminate the interference of Ni.The method was simple,rapid,accurate and high precision,the satisfactory resdts was achieved when this method was used to determine the content of Al of hydrogen storage alloys,the BSD was less than 1.4%,the recovery was 98%～102%.