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. 2019 Sep 19;19(18):4039. doi: 10.3390/s19184039

Table 3.

Method performance for the simultaneous determination of paracetamol, ibuprofen, and caffeine on carbon nanofibers modified screen-printed electrode (SPCNFE) at acetate buffer at pH 5.5. The standard deviations are denoted by parenthesis.

Sensitivity
(μA V mg−1 L)		 R2 Linear Range a
(mg L−1)		 LOD
(mg L−1)
Paracetamol 2.50 (0.05) 0.996 0.09–0.8 0.03
Ibuprofen 0.074 (0.002) 0.997 2.2–10.2 0.6
Caffeine 0.24 (0.01) 0.999 0.2–1.1 0.05

a The lowest value of the linear range was the limit of quantification (LOQ).