摘要
本文将CPA-矩阵法用于光度分析中同时对多元素的测定.确定了在SAF为显色剂、CTMAB为胶束增敏剂的配合体系中以CPA-矩阵法计算Mo、W、Ti三元素含量的各种最佳实验条件,建立了在该体系中同时测定互相干扰的Mo、W、Ti三元素的分光光度法.
The simultaneous spectrophotometric determination of micro amounts ofmolybdenum,tungsten and titanium in mixed system by the calculation of CPA-Matrix method has been investigated.The various optimum conditions of Mo(W,Ti)-SAF-CTMAB color reaction for simultaneous determination of Mo,W and Ti havebeen established.The four criteria for selecting analytical wavelengths for simultaneousdetermination of multicomponent were proposed.According to the criteria proposed,the six wavelengths:510,512,514,516,518,520nm were chosen in simultaneousdetermination of Mo,W and Ti.Beer’s law is obeyed for 0—0.4μg/mL of Mo,0—1.0μg/mL of W,0—0.35μg/mL of Ti respectively.Ten mixed samples with abitraryproportion of Mo,W and Ti were examined by the method with high accuracy andprecision.
出处
《化学学报》
SCIE
CAS
1988年第10期995-1000,共6页
Acta Chimica Sinica
