Degradation Kinetics of Telithromycin Determined by HPLC Method

Degradation kinetics of atorvastatin under stress conditions and chemical analysis by HPLC.

Atorvastatin is an antilipemic drug belonging to the statins class, whose reference drug is Pfizer's Lipitor®. It is used to reduce the levels of lipoproteins rich in cholesterol and reduce the risk of coronary artery disease. It is well-known that calcium atorvastatin (ATV), C₆₆H₆₈CaF₂N₄O₁₀•3H₂O, presents polymorphism. The drug in question is commonly sought after by pharmaceutical industries ...

Stability-indicating HPLC Assay Method and Degradation Profile of Tamsulosin

A sensitive, stability-indicating liquid-chromatographic method for analysis of tamsulosin in the presence of its degradation products has been developed and validated. Efficient chromatographic separation was achieved on a C18 column with a simple isocratic mobile phase consisting methanol: 50 mM phosphate buffer (pH 7.8, ratio 80:20) at a flow rate of 1 ml/m. The linearity of the method was e...

validated stability indicating hplc method for the determination of mebeverine in the presence of its degradation products: kinetics study of its degradation in oxidative condition

Kinetics study of metaxalone degradation under hydrolytic, oxidative and thermal stress conditions using stability-indicating HPLC method

An isocratic stability indicating RP-HPLC-UV method is presented for the determination of metaxalone (MET) in the presence of its degradation products. The method uses Dr. Maisch C18 column (250 mm×4.6 mm, 5 μm) with mobile phase consisting of acetonitrile-potassium dihydrogen orthophosphate buffer with 4 mL of 0.4% triethyl amine (pH 3.0; 10 mM) (58:42, v/v) at a flow rate of 1.0 mL/min. pH of...

solution of security constrained unit commitment problem by a new multi-objective optimization method

چکیده-پخش بار بهینه به عنوان یکی از ابزار زیر بنایی برای تحلیل سیستم های قدرت پیچیده ،برای مدت طولانی مورد بررسی قرار گرفته است.پخش بار بهینه توابع هدف یک سیستم قدرت از جمله تابع هزینه سوخت ،آلودگی ،تلفات را بهینه می کند،و هم زمان قیود سیستم قدرت را نیز برآورده می کند.در کلی ترین حالتopf یک مساله بهینه سازی غیر خطی ،غیر محدب،مقیاس بزرگ،و ایستا می باشد که می تواند شامل متغیرهای کنترلی پیوسته و گ...