Table 2 Performance data obtained from the determination of NLX using AuNPs-luminol - potassium ferricyanide system

Linear range, mol L⁻¹

1.0×10⁻⁹-1.0×10⁻²

Detection limit, mol L⁻¹

1.6×10⁻¹¹

Quantification limit, mol L⁻¹

1.0×10⁻⁹

Intercept on the ordinate

317858

Slope

25214.6

% RSD (n=9)

0.9%

Correlation coefficient, r

0.9993