Research Article
Use of Alizarin Red S as an Ion-Pair Reagent for the Spectrophotometric Assay of Fexofenadine in Pharmaceuticals and in Spiked Human Urine
Table 3
Regression and Analytical Parameters.
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*Limit of determination as the weight in μg per mL of solution, which corresponds to an absorbance of A = 0.001 measured in a cuvette of cross-sectional area 1 cm2 and l = 1 cm. , where Y is the absorbance, a is the intercept, b is the slope and X is the concentration in μg mL−1. |