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. Author manuscript; available in PMC: 2017 May 26.
Published in final edited form as: J Chromatogr B Analyt Technol Biomed Life Sci. 2016 Sep 14;1036-1037:170–177. doi: 10.1016/j.jchromb.2016.09.018

Fig. 6.

Fig. 6

Effect of different storage conditions on the peak response of 2,8-dihydroxyadenine (DHA) in a urine sample from patient with APRT deficiency. a. Effect of storage temperature on the peak area of DHA. b. Effect of storage time on the peak area of DHA at pH 8.6 and 10. *Indicates a significant decrease of the peak area (P < 0.001).