A Localized Surface Plasmon Resonance Sensing Method for Simultaneous Determination of Atenolol and Amiloride in Pharmaceutical Dosage Forms and Urine Samples

Figure 5

(a) Effect of electrolyte type and (b) effect of different concentrations of KNO₃ on the absorption intensity of 1 × 10⁻⁴ mol·L⁻¹ ATN and 5 × 10⁻⁶ mol·L⁻¹ AML mixture in the presence of 100 µL SH NPs. Inset: SEM image of SH NPs after addition of KNO₃ (50 mmol·L⁻¹).

(a)

(b)