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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/).
2 μg/mL 5-FU A) before and C) after subtraction of B) the glass capillary background. Conditions: HCl washed silver-doped sol-gel capillaries, 100 mW of 785 nm, 1min.