摘要
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548nm,表观摩尔吸光系数为5.24×104L/(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%。
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 results was achieved when this method was used to determine the content of Al of hydrogen storage alloys,the RSD was less than 1.4%,the recovery was 98%～102%.
出处
《电池》
CAS
CSCD
北大核心
2010年第2期115-117,共3页
Battery Bimonthly
关键词
铬天青S
分光光度法
贮氢合金
铝
chrome azurol S
spectrophotometry
hydrogen storage alloy
aluminum（Al）
