A.5.9mg/L B.290mg/L C.231mg/L D.2.31mg/L E.23.1mg/L
A.鋁 B.鐵 C.OH D.硅酸鹽 E.鉛
A.水加NaOH加碘化鉀 B.氯化鈉加碘化鉀加NaOH C.氯化汞加溴化鉀加NaOH D.氯化汞加碘化鉀加NaOH E.氯化秉加硫酸鉀加NaOH