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Table 1 Optimal experimental parameters for GNP synthesis at different temperature

From: Facile synthesis of concentrated gold nanoparticles with low size-distribution in water: temperature and pH controls

Reaction temperature NaOH (mM) Reaction time (min) Final pH
Boiling state 5.3-6.6 1-2 6.3-6.7
85°C 6.6-8.8 10-15 6.4-7.4
70°C 7.7-8.8 20-25 7.1-7.5