【摘要】 本文报道了溴 ( Br- )对溴酸钾氧化甲基橙 ( MO)褪色反应的负催化作用及其动力学分析 ,建立了测定痕量溴的新方法。方法的检出限达到 1 .0× 1 0 - 9g/ m L,线性范围 0 .5～ 1 .8ng/ m L,表观摩尔吸光系数 1 .0× 1 0 6 L·mol- 1·cm- 1。用于井水 ,精盐中痕量溴的测定 ,结果满意更多还原

【Abstract】 A new method for the determination of trace bromine ion is described. The method is based on its minus catalytic effect upon KBrO 3 oxidize methyl orange. The molar absorption coefficient is 1 0×10 6 L·mol -1·cm -1. The linar range of the determination for bromine is 0.5 ～ 1.8 ng/mL.The method has been used for the determination of trace bromine in well water and salt with satisfactory results.更多还原