摘要
本文研究了在阿拉伯胶存在下,β-环糊精对钼(V)-硫氰酸盐-孔雀绿水相显色反应的增敏作用,对增敏的机理作了初步的探讨。在0.30—0.50mol(?)L硫酸介质中,该体系λ_((?))=652nm,表观摩尔吸光系数ε_((?))=3.8×10~5。在0—5.0μg/25mL符合比尔定律,曾用于钼铁矿中钼的测定,结果满意。
The sensitization effect of-cyclodextrin on colour system of Mo(V)-thiocyanate malachite green in aqueous phase has been studied in the presence of arabic gum. The sensitization mechanism was also discussed, In 0.30—0.50 mol L H SO_4 medium, the maximum absorption of the system is at 652 nm and its apparent molar absortivity is 3.8×10~5 L. mol^(-1)·cm^(-1) Beer's law is obeyed in the range of 0—5.0μg 25ml The determination of molybdenum in its minerals is satisfactory.
出处
《分析试验室》
CAS
CSCD
北大核心
1989年第5期20-21,25,共3页
Chinese Journal of Analysis Laboratory
基金
国家自然科学基金
