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. 2020 Sep 23;412(29):8145–8153. doi: 10.1007/s00216-020-02948-3

Table 2.

Figures of merit of the optimized CE-ICP-MS/MS method

Functional group RSD (%) Capillary recovery (%) (n = 3) Detection limit for MS/MS Average effective electrophoretic mobility (×109, m2 V−1 s−1, n = 6)
Migration time Peak area
Intraday (n = 6) Inter-day (n = 3) Intraday (n = 6) Inter-day (n = 3) 56Fe+ (ng mL−1 Fe) 56Fe16O+ (ng mL−1 Fe)
Carboxyl 0.23 1.92 4.27 4.98 96.7 2.9 54 −5.69 ± 0.03
Amino 0.52 3.25 2.81 4.95 93.3 5.0 101 11.41 ± 0.02