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. Author manuscript; available in PMC: 2015 Oct 21.
Published in final edited form as: Anal Methods. 2014 Aug 20;6(20):8180–8186. doi: 10.1039/C4AY01534G

Fig. 3.

Fig. 3

Voltage optimization study for all analytes, where (□) 2,5-DHBA, (○) catechol, (◊) ascorbic acid, (△) 2,3-DHBA and (×) salicylic acid. Separation conditions were the same as stated in Figure 2.