From: Silica-titania xerogel for solid phase spectrophotometric determination of salicylate and its derivatives in biological liquids and pharmaceuticals
Sample
Added (mM)
Found (mM)
RSD (%)
Recovery (%)
Synthetic seruma
0.5
0.49 ± 0.10
10.9
98.0
1.0
0.97 ± 0.15
8.4
97.0
1.5
1.42 ± 0.05
1.9
94.6
2.0
2.09 ± 0.04
104.5
Urineb
0
0.46 ± 0.07
8.3
0.25
0.70 ± 0.09
7.2
96.0
0.625
1.08 ± 0.07
3.5
99.2