Colorimetric Detection of Ammonia Using Synthesized Silver Nanoparticles from Durian Fruit Shell

Figure 5

Effect of time (5–60 min) on the absorbance of the green fabricated silver nanoparticles after adding different amounts of ammonia solution: (a) 1000 ppm, (b) 2000 ppm, and (c) 3000 ppm.

(a)

(b)

(c)