نتایج جستجو برای: acidic extraction

تعداد نتایج: 198963  

A simple extractive spectrophotometric method has been developed for the estimation of miconazole nitratein both pure and pharmaceutical preparation. The method is based on the formation of ion-pair complex of thedrug with acidic dye bromothymol blue (BTB) in acidic condition, followed by its extraction in organic solvent(chloroform). The absorbance was measured against the corresponding blank....

AgNPs-Tragacanth conjugate gel as an eco friendly and low cost membrane was applied for the effective electromembrane extraction (EME) of Tenofovir disproxil fumarate, an important acidic and high polar (log p=1.25) antiviral drug, followed by HPLC-UV determination. The effect of various parameters on the extraction efficiency including the presence of AgNPs, tragacanth gum concentration, gel t...

Journal: :مهندسی بیوسیستم ایران 0
ساناز خلیقی داش آموخته کارشناسی ارشد، داشکده کشاورزی دانشگاه تربیت مدرس سلیمان عباسی دانشیار،دانشکدۀ کشاورزی دانشگاه تربیت مدرس، محمدحسین عزیزی عزیزی دانشیار،دانشکدۀ کشاورزی دانشگاه تربیت مدرس،

in this study, the morphological and chemical properties of carob pods and carob beans as well as the effect of different extraction, and purification methods on the physical and chemical properties of the purified gums have been investigated. in order to dehusk carob beans, boiling water as well as acidic methods were used. the endosperm powder was prepared and the effect of endosperm powder c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم 1392

the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...

Journal: :journal of food and bioprocess engineering 0
jafar mohammadzadeh milani sari university of agricultural science and natural resources karamat rezaii department of food science and technology, biosystem engineering faculty, agricultural campus, university of tehran mohammad safari department of food science and technology, biosystem engineering faculty, agricultural campus, university of tehran babak ghanbarzadeh department of food science and technology, biosystem engineering faculty, agricultural campus, university of tehran glyn o phillips centre for water-soluble polymers, north east wales institute, plas coch, mold road, wrexham, ll11 2aw, uk

ferula galbaniflua boiss is one of the natural plants of iran that its exudates, barijeh gum, can be used in food industry. the present study explored the properties of a new gum extracted from tubers of ferula galbaniflua. for this purpose, barijeh gum was extracted from crude exudates by alcoholic extraction with 90% ethanol. the purity of gum was relatively high, and it composed mostly of sa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

با توجه به شیوع سرطان در جوامع امروزی، یافتن داروهای جدید برای درمان آن از اهمیت بالایی برخوردار است. استفاده از داروهای شیمیایی موجود به دلیل عوارض جانبی که دارند با محدودیت مصرف روبه رو می باشند. از این رو محققین درصدد یافتن مواد طبیعی با خاصیت ضد سرطانی می باشند. هدف اصلی این پایان نامه بررسی اثرات ضد سرطانی lactoferrin وwhey acidic protein موجود در شیر شتر می باشد. در تحقیق حاضر تأثیر lacto...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2014
Kojiro Shimojo Noboru Aoyagi Takumi Saito Hiroyuki Okamura Fukiko Kubota Masahiro Goto Hirochika Naganawa

Liquid-liquid extraction of lanthanide ions (Ln(3+)) using N,N-dioctyldiglycolamic acid (DODGAA) was comprehensively investigated, together with fluorescence spectroscopic characterization of the resulting extracted complexes in the organic phase. DODGAA enables the quantitative partitioning of all Ln(3+) ions from moderately acidic solutions, while showing selectivity for heavier lanthanides, ...

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