AHMED MFA, LINGAPPA Y, GLORY A. SPECTROPHOTOMETRIC DETERMINATION OF ARSENIC, LEAD IN ENVIRONMENTAL AND BIOLOGICAL SAMPLES USING 2, 5­THIOPHENE DICARBOXALDEHYDE, THIOSEMICARBAZONE. Int J Chem Res [Internet]. 2011 Jan. 1 [cited 2026 Aug. 19];2(3):72-5. Available from: https://ijcr.info/index.php/journal/article/view/53