نتایج جستجو برای: organonitrogen compounds

تعداد نتایج: 226669  

Journal: :Journal of Synthetic Organic Chemistry, Japan 1969

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

during natural gas processing, water in natural gas may cause to hydrates formation in pipelines which may lead to serious damages to process equipments. given the problems raised by present of water in natural gas, glycol solvent uses to remove water.in contact of glycol with gas always an amount of btex and voc absorb along with water, which on glycol recovery process, these substances separa...

Journal: :Bulletin of environmental contamination and toxicology 2006
J-M Gao J-Y Hu H Zhen M Yang B-Z Li

1 College of Environmental Science, Peking University, Beijing, 100871, People’s Republic of China 2 Ministry of Education, Key Laboratory for Three Gorges Reservoir Area Ecological Environment, Chongqing University, Chongqing, 400045, People’s Republic of China 3 The State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Science, Chinese Academy of Scien...

ژورنال: :علوم تغذیه و صنایع غذایی ایران 0
زهرا هادیان z hadian گروه تحقیقات صنایع غذایی، انستیتو تحقیقات تغذیه ای و صنایع غذایی کشور، دانشگاه علوم پزشکی شهید بهشتی محمد حسین عزیزی m azizi

سابقه و هدف: نظر به کاربرد گسترده سموم دفع آفات نباتی در کشاورزی و افزایش نگرانیهای مربوط به مخاطرات بهداشتی ناشی از وجود انواع باقیمانده سموم در محصولات کشاورزی، ارزیابی میزان باقیمانده انواع سموم آفت کش به روش کروماتوگرافی گازی- طیف سنجی جرمی در برخی از سبزیهای عرضه شده در میدان اصلی میوه وتره بار شهر تهران در سال 1384 انجام شد. مواد و روشها: تحقیق به روش توصیفی بر روی 30 نمونه خیار و گوجه فر...

2016
Faith M Akwi Paul Watts

In this paper, a micro-fluidic optimized process for the continuous flow synthesis of azo compounds is presented. The continuous flow synthesis of Sudan II azo dye was used as a model reaction for the study. At found optimal azo coupling reaction temperature and pH an investigation of the optimum flow rates of the reactants for the diazotization and azo coupling reactions in Little Things Facto...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

we have two part in this thesis, at first: the interaction of native calf thymus dna (ct-dna) with two anthraquinones including quinizarin (1,4- dihydroxy anthraquinone) and danthron (1,8- dihydroxy anthraquinone) in a mixture of 0.04 m brittone-robinson buffer and 50% of ethanol were studied at physiological ph by uv-vis absorption, florescence, circular dichroism spectroscopic methods, viscos...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ولی عصر (عج) - رفسنجان - دانشکده علوم پایه 1388

چکیده ندارد.

Journal: :Journal of synchrotron radiation 2005
Martin C Feiters Frithjof C Küpper Wolfram Meyer-Klaucke

X-ray absorption spectra of a number of organic iodine and bromine compounds of biological relevance, as well as of a series of iodine compounds with different oxidation states, have been measured. The iodine K-edge spectra (XANES) are found to be relatively featureless but the position of the edge is found to be sensitive to formal valence (among other factors), and the edge shape to the numbe...

Journal: :caspian journal of internal medicine 0
nasrin rafieian alborz university of medical sciences, karaj, iran. hamidreza abdolsamadi hamadan university of medical sciences, hamadan, iran aliakbar moghadamnia babol university of medical sciences, babol , iran. mina jazayeri hamadan university of medical sciences, hamadan, iran. mohammadali seif-rabiee hamadan university of medical sciences, hamadan, iran mina salmanzadeh hamadan university of medical sciences, hamadan, iran

background: recurrent aphthous stomatitis (ras) is the most common painful ulcers of oral mucosal which can cause many sufferings. treatment of ras often includes administration of corticosteroids, analgesics and regulators of the immune system. however, considering the side effects of these medications, even their topical application must be done with caution. alum is used in traditional medic...

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