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Table 1 pH values of the different mixtures

From: One-Pot Silver Nanoring Synthesis

Entry	1	2	3	4	5	6	7
NaOH (μL)	35	70	105	140	175	210	245
pH	7.73	8.45	9.01	9.28	9.57	9.69	9.75

Each assay contained 4 mL of sodium citrate (10⁻³M), 0.35 mL of AgNO₃ (5.10⁻³M), 0.15 mL of NaBH₄ (10⁻²M) and, from 1 to 7, increasing volumes of freshly made 1 M NaOH

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