[PDF] Top 20 Estimation of bulk drug and their formulations by analytical reagents by various methods. A review

... of reagents which are mainly used in the quantitative and qualitative determination of various ...with drug in the presence or reducing agents like sncl ₂, ascorbic acid hydrazine, which have ... See full document

... antiepileptic drug. Various methods have been reported for the determination of CBZ in pharmaceutical preparations including spectro- photometric methods, spectrofluorimetry method, gas-liquid ... See full document

... literature review showed the estimation of these drug in combination with another drug formulation by different analytical methods such as, spectrophotometric simultaneous ... See full document

... PA formulations is ...The analytical frequency is 200 h −1 ...pharmaceutical formulations and the relative standard deviation of results was ...between methods was found at the 95% confidence ... See full document

... literature review encompasses the literature reports on various analytical methods of rabeprazole sodium estimation useful in the ...the bulk drug sample of rabeprazole ... See full document

... Various aliquots of Atorvastatin Calcium, Aspirin, Ramipril and Metoprolol Tartrate were prepared in the concentration range of 3 - 21 µg/ ml, 10 – 70 µg/ ml, 10 - 70 µg/ ml and 10 - 70 µg/ ml, respectively. The ... See full document

... Meclizine Hydrochloride and folic acid reference standard were kindly provided by Hetero Pharmaceuticals, Hyderabad for providing gift sample of working standard. Methanol of used as a solvent. All chemicals and ... See full document

... simultaneous estimation of aspirin, atorvastatin, atenolol and losartan ...combination drug product was exposed to thermal, acid/base hydrolytic, humidity and oxidative stress conditions, and the stressed ... See full document

... Standard stock solution of Flupirtine Maleate was prepared by dissolving 25mg of the drug in 25 ml of mobile phase. Further dilution was made by pipetting 2.5 ml of stock solution into 25 ml to get the ... See full document

... Moxonidine is a new-generation centrally-acting antihypertensive drug licensed for the treatment of mild to moderate essential hypertension. It is a selective agonist at the imidazoline receptor subtype 1. ... See full document

... saxagliptin drug in its pure and formulated ...The drug was subjected to acidic, alkali, neutral, oxidative, heat and photo degradation ...stress. Drug shows significantly degraded in acidic and ... See full document

... antidiabetic drug (fig.2). Sitagliptin is a novel oral hypoglycemic drug of the dipeptidylpeptidase 4 inhibitor class. DPP-4 inhibitors represent a new therapeutic approach to the treatment of type 2 ... See full document

... An isocratic stability-indicating reversed phase liquid chromatography (RP-HPLC-UV) method for quantitative determination of tapentadol HCl has been developed and validated as per the ICH guidelines. Tapentadol HCl and ... See full document

... simultaneous estimation of Omeprazole and Aspirin. These methods have good resolution both the drugs good and short analysis ...several methods have been reported for determination of Omeprazole and ... See full document

... in bulk, formulation and disolution. To optimize the mobile phase, various combinations of buffer, methanol and acetonitrile solvents were studied, on a column Phenomenex prodigy ODS-3V (150 mm x ...of ... See full document

... Hepatitis B envelope protein or surface antigen (HBsAg) is composed of three related envelope proteins covalently linked together. Validated AxSYM system used for estimation of in-vitro potency assay (Izquierdo, M ... See full document

... Valarmathy J, developed a simple, selective, rapid, precise and accurate reverse phase high pressure liquid chromatographic method for the assay of nitazoxanide (NTZ) in tablets. An isocratic LC separation was performed ... See full document

... Twenty tablets (1 mg) of ropinirole hydrochloride were accurately weighed and grounded to fine powder and dissolved in 0.1 M acetic acid using vortex mixer. Then the solution was diluted to 25 ml to get a drug ... See full document

... Linearity of this method was evaluated by linear regression analysis and calculated by least square method and studied by preparing standard solutions of tinidazole at different concentration levels. Absorbance of ... See full document

... The proposed method was applied to the estimation of Famciclovir in tablets. The assay results show that the proposed method was selective for the determination of Famciclovir without interference from the ... See full document