Figure 8 ,Table 4
    • 图  1  停留光谱测定ABTS/DPD与PI的动力学演示图

      Figure 1.  The demonstration of stopped-flow spectrophotometer used to determine the kinetics of PI with ABTS or DPD

    • 图  2  ABTS(A)和DPD法(B)的显色机理

      Figure 2.  Color mechanism of the ABTS (A) and DPD method (B)

    • 图  3  不同浓度高碘酸根与ABTS(A)和DPD(B)反应后的吸收光谱

      Figure 3.  Absorption spectrum of the ABTS (A) and DPD reagents (B) after reacted with different PI concentrations

    • 图  4  反应时间对ABTS溶液(A)和DPD溶液(B)吸光度值的影响

      Figure 4.  Effect of reaction time on the absorbance values of ABTS solution (A) and DPD solution (B)

    • 图  5  (A)pH对ABTS溶液在415 nm处的吸光度值的影响;(B)pH对DPD溶液在551nm处的吸光度值的影响

      Figure 5.  (A) Effect of pH on the absorbance of ABTS solution at 415 nm;(B) Effect of pH on the absorbance of DPD solution at 551 nm

    • 图  6  (A)ABTS浓度对ABTS·+在415 nm处生成速率的影响;(B)ABTS浓度对ABTS溶液在415 nm处吸光度值的影响;(C) DPD浓度对DPD溶液在551 nm处吸光度值的影响

      Figure 6.  (A) Effect of ABTS concentration on the rate of ABTS·+ formation at 415 nm; (B) Effect of ABTS concentration on the absorbance at 415 nm; (C) Effect of DPD concentration on the absorbance at 551 nm

    • 图  7  ABTS法(A)和DPD法(B)测定高碘酸根的标准曲线

      Figure 7.  Standard curves for the ABTS (A) and DPD methods (B)

    • 图  8  ABTS·+(A)和DPD·+(B)自由基在不同水质背景中的稳定性试验

      Figure 8.  Stability test of ABTS·+(A) and DPD·+ (B) in different water matrixes