Continuous optical resolution of antihypertensive drug by column chromatography.

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Separation of aflatoxins by column chromatography.

Several column chromatographic methods are available for the separation of aflatoxins (l-6). Most of these procedures are elaborate and involve several steps of purification. A rapid and simple method of obtaining pure aflatoxins was reported by Steyn (5); however, with this method, we were not able to obtain pure crystalline aflatoxins B, and G1 for our experimental studies on animals. When pu...

Optimization of Continuous Flow Adsorption of Heavy Metal Ions on Continuous System Column by Peganum Harmala Seeds

Background & Aims of the Study: Heavy metals discharge to environment is a worldwide problem growing in scale. When they accumulate in the environment and in food chains, they can profoundly disrupt biological processes. Peganum Harmala Seeds (PHS) was used as a bio-sorbent, using a continuous system for removing Pb2+, Co2+, Ni2+ and Cu2+ ions from aqueous solutions. ...

Column Liquid Chromatography

Antihypertensive Bridge Therapy by Continuous Drug Infusion With an Elastomeric Pump in Device-Resistant Hypertension.

To the Editor: Over recent years, invasive hypertension treatments have led to a new clinical condition, called device-resistant hypertension (DRH).1 DRH is defined as blood pressure (BP) >140/90 mm Hg, with at least 3 antihypertensives at maximal doses, including a diuretic,2 without BP decrease after the invasive treatments. These patients are not infrequent and are obliged to visit several h...