Table 1 Variation in absorbance maxima with change in pH synthesis of gold nanoparticle by oxidation of 1,8-cineole
Sample Name | Amount of NaOH Added (μL) | pH of Solution Before Reduction | pH of Solution After Reduction | Absorbance Maxima (nm) |
|---|---|---|---|---|
S1 | 12 | 3.03 | 4.24 | 572 |
S2 | 37 | 5.09 | 5.04 | 560 |
S3 | 55 | 7.04 | 6.01 | 544 |
S4 | 70 | 9.10 | 6.98 | 548 |
S5 | 85 | 11.08 | 7.67 | 562 |