Journal of Analytical Methods in Chemistry

Research Article

A Novel Carbon Paste Electrode Modified with N1-Hydroxy-N1,N2-Diphenylbenzamidine for the Electrochemical Determination of Cadmium(II) in Environmental Samples

Table 3

Comparison of the performance of HDPBA modified CPE with other reported sensors for the determination of Cd(II).
ElectrodeaTechniqueAccumulation time (s)Linear range (nM)LOD (nM)Ref.
CS-MCPEDPASV6001780–5785934[34]
MWCNT-MES-CPEDPASV50027–222521.4[39]
PrGO/AuNPs/Sal-Cys/GCESWASV1201–100.060[40]
Cr-CPESWASV10089–712026.7[41]
L/MWCNTs/CPEILDPASV901.8–205.00.700[18]
N-BDMP-CPESWASV21089–1780058.7[42]
Bi/MCNTs-CPESWASV2008.9–534.02.67[43]
PPy-CO2@PGEDPASV9000.1–1.00.023[44]
Nafion-G/GCEDPASV12013.3–267.00.178[45]
Ligand L/CPEDPV—17.8–890.466[46]
Fe3O4@G2-PADSWASV 4.4–7111.867[3]
HDPBA-CPESWASV2700.3–1000.032Present work
aCS: coconut shell powder; MES: magnetic nanocomposite of Fe3O4/eggshell; PrGO/AuNPs/Sal-Cys: penetrable nature of graphene/gold nanoparticles/modified L-cysteine nanocomposite; Cr: chromium (III) oxide; L/MWCNTs/CPEIL: 4-((1H-1,4-triazol-3-ylimino)methyl)phenol (L)-MWCNTs composite modified carbon paste ionic liquid electrode; N-BDMP: nitro benzoyl diphenyl methylene phosphorane; Bi/MCNTs: bismuth modified multiwalled carbon nanotubes doped; PPy-CO2@PGE: a pencil graphite electrode modified with pyrrole-1-carboxylic acid; Nafion-G: Nafion-graphene composite film; Ligand L/CP: 2,2’-((pyridine-2,6-diylbis (azanylylidene))bis(methany-alkylidene)) bis(4-bromo-phenol); and Fe3O4@G2-PAD: second-generation polyamidoamine dendrimer functionalized magnetic nanoparticles.