摘要
在醋酸-醋酸钠缓冲溶液中,钛与苯甲酰苯基羟胺形成的络合物,在示波极谱仪上产生-灵敏的吸附波,导数峰电位E_p=-0.83V(vs.SCE),检出限0.1μg/L,线性范围0~5μg/L.选择性较好,本法已用于测定高铝水泥标样中的钛。
A sensitive adsorpive complex wave of Ti(w)with E_p=-0. 83 V(vs,SCE) has been ob-tained by using oscillopolarograghy in 0.05 mol/LHAc-NaAc buffer solution(pH=4.5 ) con-taining 4 ×1 0 ̄(-4)mol/L benzoylphenylhydr-oxyamine(BPHA).The detection Iimit is 0.1μg/ L(2×10 ̄(-9)mol/L).Under optimum condi-tions ,the peak height is proportional to the con-centration of Ti(Ⅳ)over the range of 0~5μg/L. The method has high sensitivity , good repro-ducibility and selectivity. It has been applied tothe determination of Ti in cement.
出处
《分析试验室》
CAS
CSCD
北大核心
1995年第1期42-44,共3页
Chinese Journal of Analysis Laboratory
关键词
钛
示波极谱
苯甲酰苯基羟胺
配合物
Ti(Ⅳ)determination
polargra-phy
benzoylphenylhydroxylamine