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. 2025 Oct 23;15:37156. doi: 10.1038/s41598-025-22295-6

Table 4.

Determination of PHE and DOX in its tablet dosage form and application of standard addition technique using the established methods. a average of 3 determinations of tablet dosage form.

PHE DOX
HPLC method HPTLC method HPLC method HPTLC method
Taken (µg/mL) Added (µg/mL) Recovery % Taken (µg/band) Added (µg/band) Recovery % Taken (µg/mL) Added (µg/mL) Recovery % Taken (µg/band) Added (µg/band) Recovery %
Dosage form (10 mg PHE/10.5 mg DOX) 6.00 3.00 101.66 6.00 3.00 101.54 6.50 3.25 101.57 6.50 3.25 99.49
6.00 99.01 6.00 100.81 6.50 98.94 6.50 100.56
12.00 98.69 12.00 100.65 13.00 98.66 13.00 99.49
Meana % ± SD 99.78 ± 1.63 Meana % ± SD 101.04 ± 0.47 Meana % ± SD 99.72 ± 1.60 Meana % ± SD 99.84 ± 0.61