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

Figure 7

(a) Calibration spectra of different concentrations of ATN and AML mixture. From 1 to 7 mixtures, they are 1, 2, 4, 5, 6, 8, 10 × 10⁻⁵ mol·L⁻¹ ATN with 1, 2, 4, 5, 6, 8, 10 × 10⁻⁶ mol·L⁻¹ AML, respectively. (b) Linear relationship curves of ATN (measured at 274 nm) and AML (measured at 364.5 nm) using 100 µL SH NPs and 50 mmol·L⁻¹KNO₃.

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