【摘要】 在盐酸介质中,F-能明显地阻抑铁(Ⅲ)催化过氧化氢还原亮绿SF的褪色指示反应,据此建立了测定痕量F-的阻抑 催化动力学光度分析方法。该方法测定F-的线性范围为0.0～5.4mg L,检出限为3.8×10-6g L,已应用于测定自来水中微量氟。更多还原

【Abstract】 In hydrochloric acid medium, trace fluoride essentially inhibited the light green SF descolorization reaction with H₂O₂ catalyzed by Fe（Ⅲ）. Based on this, an inhibition kinetic spectrophotometric method for the determination of trace fluoride was established. The linear range were 0～5.4 mg/L with a detection limit of 3.8×10^-6 g/L for fluoride. This method was used to determine trace fluoride in tap water with satisfactory results.更多还原