One tablet was dissolved in 900 ml of 0.1M HCl using the dissolution quality control test. Sample was withdrawn after 30 minutes and the following results were obtained.
You should know that Dilution factors of Sample = 5 and Dilution factors of STD = 3.
The concentration of stock standard, write the answer without unit.
Dilution Ratio
Absorption
Sample
1/5
0.550
Standard
1/3
0.557
Standard Preparation
Prepared by dissolving 22.2 mg of Clarithromycin in 206.7 ml of 0.1M HCl as a solvent.
Answer: