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International Scholarly Research Notices
Table of Contents
International Scholarly Research Notices
/
2013
/
Article
/
Tab 4
/
Research Article
Development and Validation of a Stability Indicating RP-HPLC Method for the Determination of Two Sun Protection Factors (Koptrizon and Tinosorb S) in Topical Pharmaceutical Formulations Using Experimental Designs
Table 4
Accuracy results for Koptrizon and Tinosorb S (
).
Active
components
Amount added
(
μ
g mL
−1
)
Amount recovered
(
μ
g mL
−1
)
% Recovery ± SD;
% RSD
74.9
75.4
100.7 ± 0.63; 0.62
KPT
149.8
153.0
102.1 ± 0.49; 0.48
224.7
220.4
98.1 ± 0.53; 0.54
75.6
75.5
99.0 ± 0.00; 0.00
TIN
151.2
154.7
102.3 ± 1.56; 1.52
226.8
222.7
98.2 ± 0.33; 0.34