电感耦合等离子体原子发射光谱法同时测定铝土矿中40种组分

采用NaOH熔融分解样品，热水浸取熔融物，加入酒石酸络合钨、钼、铌、钽等易水解元素，然后在盐酸介质中用电感耦合等离子体原子发射光谱法同时测定铝土矿中Al2O3、SiO2、Fe2O3、TiO2、CaO、MgO、K2O、P2O5、MnO、Ga、Ge、V、Li、Cr、Nb、Ta、Sr、Zr、Hf、Sc、La、As、B、Ba、Be、Bi、Cd、Co、Cu、Ni、Pb、Sb、Sn、Tl、Zn、Mo、Se、In、Te和W等40种组分。通过筛选分析谱线、合理设置背景扣除位置及干扰元素校正系数，避免了光谱干扰。方法检出限为 0.05~0.85 μg/g。用本法测定了铝土矿国家标准物质和实际样品中的上述40种组分，测定值与认定值或化学法测定值吻合，测定结果的相对标准偏差（RSD，n=11）在0.15%~5.9%之间。

Simultaneous determination of forty elements in bauxite by inductively coupled plasma atomic emission spectrometry

After the sample was decomposed by NaOH fusion,the fusant was leached with hot water,and tartaric acid was added for complexation of easily-hydrolyzed elements such as W,Mo,Nb and Ta.Then,forty components in bauxite were simultaneously determined by inductively coupled plasma atomic emission spectrometry in hydrochloric acid medium including Al2O3,SiO2,Fe2O3,TiO2,CaO,MgO,K2O,P2O5,MnO,Ga,Ge,V,Li,Cr,Nb,Ta,Sr,Zr,Hf,Sc,La,As,B,Ba,Be,Bi,Cd,Co,Cu,Ni,Pb,Sb,Sn,Tl,Zn,Mo,Se,In,Te and W.The spectral interference was a...