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. 2011 May 29;6:37–44. doi: 10.4137/ACI.S6969

Figure 4.

Figure 4.

Effects of HCl concentration on the reaction of 1.0 ml of 10−3 M ABTS mixed with 1.0 ml of 10 ppm nitrite solution into 10.0 ml volumetric flasks. 0.5–3 ml of 0.1 M standard HCl solution was added. The total volume was adjusted to 10.0 ml in each flask.