From: Exploration of 1, 2-naphthoquinone-4-sulfonate derivatizing reagent for determination of chlorthalidone in tablets: a spectrophotometric investigation
Complex
Amount found (μg/mL)
% Amount found ± SD
% RSD
CHL-1, 2-naphthoquinone-4-sulfonate
5.95
99.17 ± 0.40
0.51