Table 1.

Comparison of proposed sensor with other reported voltammetric sensors for the determination of BHA

Electrode	Ep (V)	Linear range (M)	LODa (M)	References
BDD	0.896	3.3 × 10−6 – 5.5 × 10−6	7.7 × 10−7	Medeiros et al. 2010
NiHCF / GWCE	0.312	1.2 × 10−6 - 1.07 × 10−3	6.0 × 10−7	Prabakar and Narayanan 2010
Pt	0.700	3.0 × 10−5 to 1.0 × 10−3	–	Michalkiewicz et al. 2004
Pt/MWCNT	0.340	1.0 × 10−6 to 1.0 × 10−7	9.5 × 10−8	Rasheed et al. 2014
Poly(L-Cys)/GCE	0.020	1.0 × 10−6 to 1.0 × 10−5	4.1 × 10−7	Proposed sensor

^aLimit of detection

BDD boron doped diamond electrode, NiHCF / GWCE nickel hexacyanoferrate (NiHCF) surface modified graphite wax composite electrode, Pt bare platinum electrode, Pt/MWCNT multiwalled carbon nanotube modified platinum electrode