Sensitive Carbon Fiber Microelectrode for the Quantification of Diuron in Quality Control of a Commercialized Formulation

Table 1

Comparison of some methods reported for diuron determination.

Modified electrodes	pH	Linear range (μM)	LD (μM)	References
SPE-hapten/CNTs	8.0	0.0004 × 10^−4–0.43	0.0004 × 10^−3	[24]
^aGCE-rGO-AuNPs/Nafion	2.0	0.001–0.01	0.0003	[25]
CPE/MWCNT-COOH^b	8.0	0.05–1.25	0.009	[26]
SiO2@AuNPs/GCE	2.6	0.2–55	0.051	[27]
FeTAPc-SWCNT-GCE	4.0	50–100	0.260	[28]
NC-CPE	7.0	4.2–47	0.350	[15]
SPE/rGO/AuNPs^c	5.5	2.15–128.7	0.536	[29]
MIP(DU)/MWCNTs-ISEs	2.5–4.5	3.2–1000	1.400	[30]
^dGO-MWCNTs/GCE	5.0	9–380	1.490	[31]
CPE/NiOPc/hemin/GO^e	8.0	9.9–150	6.140	[32]
CPE/hemin/Ni(II) complex	7.5	50–1000	20.000	[33]
p-NiTSPc-CFME	7.0	21.46–150	8.030	This work

^aReduced graphene oxide-gold nanoparticles/Nafion (rGO-AuNPs/Nafion). ^bCarboxyl functionalized multiwalled carbon nanotubes (MWCNT-COOH). ^cReduced graphene oxide-gold nanoparticle (rGO-AuNP)-modified screen-printed electrode (SPE). ^dGraphene oxide-multiwalled carbon nanotubes. ^eNickel(II) 1,4,8,11,15,18,22,25-octabutoxy-29H,31H-phthalocyanine complex.