SPECTROPHOTOMETRIC DETERMINATION OF ISONICOTINIC ACID HYDRAZIDE (ISONIAZIDE) IN PURE FORM AND PHARMACEUTICAL FORMULATION USING POTASSIUM PERMANGANATE AND SOME DYES
SPECTROPHOTOMETRIC DETERMINATION OF ISONICOTINIC ACID HYDRAZIDE (ISONIAZIDE) IN PURE FORM AND PHARMACEUTICAL FORMULATION USING POTASSIUM PERMANGANATE AND SOME DYES