【摘要】 本文将３．５次微分循环示波计时电位法应用于铋的示波特性的研究和合成样品中微量铋的测定。铋在０．１ｍｏｌ／ＬＮａＯＨ支持电解质中，于示波图阴极支上产生一灵敏切口，灵敏度为２×１０－７ｍｏｌ／Ｌ，线性范围为４×１０－７～２×１０－６ｍｏｌ／Ｌ。更多还原

【Abstract】 Abstrac The 3,5 order differential cyclic oscillochronopotentiometry was applied to investigate the oscillographic characteristics and determination of Bi 3+ .The experimental results of determination for Bi in 0.1mol/L NaOH show that the method has advantages of high sensitivity (2×10 -7 mol/L),fast determining speed,and wide linear range (4×10 -7 ～2×10 -6 mol/L) in comparison with cyclic oscillographic chronopotentiometry based on dE/dt E curve.更多还原