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. 2008 Dec 12;8(12):8237–8247. doi: 10.3390/s8128237

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© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 5. — The effects of oxygen scavengers (A) sodium thiosulfate and (B) ascorbic acid. Before addition of oxygen scavenger, the 0.1 M phosphate buffer (pH 6.2) had been purged with pure oxygen for 30 minutes. The arrows indicated the concentrations of scavengers increased in an order of 0, 1, 5, 10, 15, 20 mM.