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Table 2 Analytical figure of merit for MOF-PT-SPE combined by HPLC for determination of dyes (C and A are the concentrations of dyes and HPLC response as peak area, respectively)

From: Application of response surface methodology for optimization of metal–organic framework based pipette-tip solid phase extraction of organic dyes from seawater and their determination with HPLC

Analyte Linearity range (µg/L) Equation of calibration Determination coefficient (R2) Limit of detection (µg/L) Enrichment factor
RB 0.5–200.0 A = 225.7 C + 7435 0.9908 0.09 25.8
MG 0.5–200.0 A = 267.43 C + 1190.6 0.999 0.17 31.0
AR 1.0–150.0 A = 476.6 C + 6973.8 0.9953 0.33 25.8
MO 1.0–150.0 A = 467.95 C + 7909.7 0.9970 0.38 25.8