A Localized Surface Plasmon Resonance Sensing Method for Simultaneous Determination of Atenolol and Amiloride in Pharmaceutical Dosage Forms and Urine Samples
Table 4
Determination of ATN and AML in laboratory-prepared mixtures.
Added amount (mol·L−1)
Found amount (mol·L−1)
Recovery (%)# ± SD
ATN (×10−5)
AML• (×10−6)
ATN (×10−5)
AML• (×10−6)
1
1
0.98
0.99
98.0 ± 1.2
99.1 ± 0.9
2
2
1.92
2.01
96.0 ± 0.8
100.5 ± 0.7
4
4
3.89
3.93
97.3 ± 0.7
98.3 ± 0.4
6
6
6.10
5.88
101.7 ± 0.5
98.0 ± 0.9
8
8
7.79
7.92
97.4 ± 0.4
99.0 ± 0.6
10
10
10.20
9.73
102.0 ± 0.2
97.3 ± 0.1
ATN is measured at 274 nm. •AML is measured at 364.5 nm. #Average of three determinations ± SD.
