机构地区: 西北师范大学化学化工学院
出 处: 《西北师范大学学报(自然科学版)》 2003年第2期48-50,共3页
摘 要: 研究了在封闭体系中B Z振荡反应测定间苯二酚的条件 ,建立了测定痕量间苯二酚的新方法 .当 [KBrO3]=0 2 5mol/L ,[CH2 (COOH) 2 ]=0 5mol/L ,[Ce(SO4 ) 2 ]=0 0 4mol/L ,[H2 SO4 ]=0 8mol/L时 ,间苯二酚在 6 5×10 - 7mol/L~ 1 0× 10 - 5mol/L范围内 ,浓度与振幅改变值ΔA呈线性关系 ,检出限为 6 0× 10 - 7mol/L .用于废水中间苯二酚的测定 ,回收率为 99% . An analytical method for the determination of trace amount of resorcinol is established by studying its pertubation on B Z oscillating reaction.The best reaction condition and the reactants concentrations are reported.The results show linear relationship between the changes in oscillation amplitude of the chemical system and the concentration of resorcinol in the range of 6 5×10 -7 ?mol/L~1 0×10 -5 ?mol/L,and the related coefficients are 0 998?9.The methed is used to determine resorcinol in synthetic waste water,a satisfactory result is achieved.
关 键 词: 振荡反应 间苯二酚 废水监测 动力学测定 化学反应动力学 化学振荡
领 域: [环境科学与工程]