Investigation of Drug–Polymer Compatibility Using Chemometric-Assisted UV-Spectrophotometry

Investigation of Drug–Polymer Compatibility Using Chemometric-Assisted UV-Spectrophotometry

A simple chemometric-assisted UV-spectrophotometric method was used to study the compatibility of clindamycin hydrochloride (HC1) with two commonly used natural controlled-release polymers, alginate (Ag) and chitosan (Ch). Standard mixtures containing 1:1, 1:2, and 1:0.5 w/w drug-polymer ratios were prepared and UV scanned. A calibration model was developed with partial least square (PLS) regre...

Simultaneous Determination of Metoprolol and Propranolol Using Chemometric-assisted Spectrophotometry and High- Performance Liquid Chromatography

Resolution of binary mixtures of metoprolol and propranolol without sample pretreatment has been successfully achieved, using three different methods. The first method was based on application of Vierodt’s method that involves measurements of the absorbances at 222.6 and 213.4 nm for metoprolol and propranolol. Calibration graphs were established in the range of 1-70 μg/mL and 0.5-30 μg/mLfor m...

Basic UV/Visible Spectrophotometry

investigation of thermal comfort properties of woven sport fabric using blend of estabragh fibers

امروزه لباس در نظر ورزشکاران و کسانی که برای اوقات فراغت خود و یا برای رسیدن به اندامی متعادل، ورزش می کنند؛ بسیار با اهمیت است. احساس مطلوب از لباس در زمره خصوصیات راحتی پوشش می باشد. خصوصیات انتقال رطوبت لباس، در ارزیابی راحتی حسی و حرارتی منسوجات تولید شده از آن ها بسیار مهم است. هدف از این تحقیق، معرفی پارچه جدید است که متشکل از الیاف استبرق با خواص منحصر به فرد می باشد. استبرق لیف طبیعی تو...

Determination of Triiodide Ion Concentration Using UV-Visible Spectrophotometry†

The concentration of iodine species can be measured using several different analysis methods. One of the most wellknown methods involves iodine titration with a thiosulfate solution. Total iodine can be analyzed using spectrometry, such as inductively coupled plasma-atomic emission spectrometry (ICP-AES), atomic absorption spectrometry (AAS) and inductively coupled plasma-mass spectrometry (ICP...