Solvent Extraction Equilibria of Neodymium and Praseodymium with Acidic Organophosphorus Compounds
نویسندگان
چکیده
منابع مشابه
4 Solvent Extraction Equilibria
The ability of a solute (inorganic or organic) to distribute itself between an aqueous solution and an immiscible organic solvent has long been applied to separation and purification of solutes either by extraction into the organic phase, leaving undesirable substances in the aqueous phase; or by extraction of the undesirable substances into the organic phase, leaving the desirable solute in th...
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سنتز سبز نانوذرات فلزی (nps) درسالهای اخیر توجه بسیارزیادی را به خود جلب کرده است. زیرا این پروتوکل کم هزینه وسازگار با محیط زیست از روش های استاندارد سنتز. در این پایان نامه ما گزارش میکنیم یک روش ساده و سازگار با محیط زیست برای سنتز نانوذرات نقره با استفاده از محلول آبی عصاره گیاه allium iranicum به عنوان یک عامل کاهش دهنده ی طبیعی. نانو ذرات نقره مشخص شد با استفاده از تکنیک های uv-visible، x...
Esterases Reacting with Organophosphorus Compounds
The sixty-seven papers in this book are grouped under the following chapters: Esterase Structures, Catalytic Properties of Cholinesterases, Catalytic Properties of Paraoxonases and Related Esterases, Biology of Cholinesterases, Biology of Paraoxonases and Related Esterases, Toxicity and Degradation of Organophosphorus Compounds, Neuropathy Target Esterase, and Miscellaneous. The chapters are pr...
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in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...
Reaction of Trivalent Organophosphorus Compounds with Selenium
Over the years, evidence has been accumulating [1, 2] that selenium is an essential nutrient in animals, preventing various serious deficiency diseases. On the other hand, no such firm proof for the need of selenium in human nutrition has been established, although several instances of beneficial effects as a result of selenium supplementation of human diet have been reported [3-5]. Although va...
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ژورنال
عنوان ژورنال: Journal of the Mining and Metallurgical Institute of Japan
سال: 1986
ISSN: 0369-4194,2185-6729
DOI: 10.2473/shigentosozai1953.102.1182_491