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Table 4 Comparison of LOD obtained at NC/CPE for FA with other recently reported modified electrodes

From: Electrochemical investigations and theoretical studies of biocompatible niacin-modified carbon paste electrode interface for electrochemical sensing of folic acid

Sl no

Working electrode

LOD ((µM)

Concentration range (µM)

pH

method

Reference

1

NiO/SWCNTs/1B3MIMS/CPE

0.07

0.3–350

7.0

DPV

Afshar et al. (2020)

2

PtNPs-GNPs-MWCNTs-β-CD/GCE

0.48

20.0–500.0

7.0

CV

Yuan et al. (2020)

3

BRB/CPE

1.04

106.0–142.0

7.4

CV

Ganesh et al. (2021a)

4

MB/ERGO/GCE

0.5

4.0–167

7.4

DPV

Zhang et al. (2016)

5

ZnO/FMWCNT MCPE

1.3

5.0–20.0

7.4

CV

Kumara et al. (2019)

6

Nevirapine-modified CPE

2.5

5.0–45.0

7.0

DPV

Tanuja et al 2017

7

poly(ser)/MWCNTs/GCE

0.6

5.0–110.0

7.0

DPV

Narayana et al. (2015)

8

Ni-poly(o-anisidine)/CPE

91.0

100–5000

2.0

CV

Ojani et al. (2009)

9

Fe3O4@MIP-GO/CPE

0.65

2.5–48.0

7.0

SWV

Garcia et al. (2021)

10

NC/CPE

0.09

5.0–45.0

7.4

CV

This work