摘要
以钨、铜的ＰＶ－ＣＴＭＡＢ为体系，在ｐＨ＝５．５时，用多波长数据线性回归法同时测定微量的钨和钼。选择的波长区间为６５０～６９０ｎｍ，当钨和钼含量比率在１：３和６：１范围内，相对误差小于±８％．
The linear regression method of multi-wavelength data was applied to the detemination of W and Mo in the ternary complexes of PV-CTMAB - W, Plus Mo system. The spectrophometric characteristie of the system,optimum conditions for the complex formation and effects of foreign ions were studied.The absorbances of the mixture contained W and Mo were measured at many wavelengths,and the data were treated by linear regression method to evaluate the coneentration of W and Mo.In the range from 650 um to 690 nm, the RSD(%) was less than 8% for microamOunts of W and Mo with eoneentration ratio from 1: 3 to 6: 1
出处
《河南大学学报（自然科学版）》
CAS
1994年第1期64-67,共4页
Journal of Henan University:Natural Science
关键词
钼
钨
分光光度法
测定
Molybdenum,Tungsten,linear regression,Simultaneous determination, Spectrophometry.
