Yurchenko OI, Osipov AV, Dobriyan MA, Chernozhuk TV. Validation of the method of spectrophotometric determination of nicotinic acid in preparations. Khark. Univ. Bull. Chem. Ser. [Internet]. 2014Oct.28 [cited 2024Apr.28];0(24):140-4. Available from: https://periodicals.karazin.ua/chemistry/article/view/14390