Fig. 6From: PCN-222 metal–organic framework: a selective and highly efficient sorbent for the extraction of aspartame from gum, juice, and diet soft drink before its spectrophotometric determinationEffect of pH on extraction recovery of ASP (adsorption conditions: 100 µL of 10.0 mg L−1 ASP solution; 10 mg of adsorbent; 15 min contact time)Back to article page