最近的研究表明，当DPD法适用于测定残余臭氧时，由于可能受到过氧化氢和其他氧化剂的干扰，有必要大幅降低碘化钾浓度。包括5个参考文献、表格。

Recent studies have shown that when the DPD method is adapted for determining residual ozone, it is necessary to reduce substantially the potassium iodide concentration because of possible interference from hydrogen peroxide and other oxidants. Includes 5 references, tables.