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 determination

Table 2 Analytical figure of merit for SPE extraction of ASP

Parameter	Analytical feature
Equation of calibration curve	A = 0.0769C_ASP + 0.2534
Dynamic range (mg L⁻¹)	0. 1–100
R² (determination coefficient)	0.9978
Repeatability (RSD %, n = 7)	1.70
Limit of detection (mg L⁻¹)	0.019
Enrichment factor	350
Capacity of sorbent (mg g⁻¹)	356

ISSN: 2661-801X