نتایج جستجو برای: coacervative extraction

تعداد نتایج: 165507  

Journal: :iranian journal of veterinary research 2014
m. kibar c. evereklioğlu z. doğan

the aim of this study was to report a new cause of cataract, namely snake bite induced cataract in a dog. a 3-year-old male mongrel dog was referred to our clinic for the assessment of cataract in both eyes. the dog was bitten by a snake nearly 4 months ago. a 40 dioptre acrylic lens with 13 mm haptics was implanted into the lens capsule. in the left eye, posterior synechia was detected in the ...

Journal: :تحقیقات مهندسی کشاورزی 0
عادل میرمجیدی عضو هیئت علمی مؤسسه تحقیقات فنی و مهندسی کشاورزی بابک بابایی عضو هیئت علمی مؤسسه تحقیقات اصلاح و تهیه بذر چغندرقند

pectin is used as gelatinizing agent in food industry. in this study pectin was extracted from five commercial sugar beet varieties namely: doroty, rasul, 7112, br1 and ic using pre-hydrolysis technique. experiments were conducted using factorial design to verify the effect of temperature, time, percentage of hcl and water requirements on the extraction rate of pectin. the qualitative factors o...

Journal: :international journal of environmental research 0
h. sid kalal nuclear fuel cycle school, nuclear science and technology research institute, aeoi, p.o.box 11365-3486, tehran, iran h. hoveidi graduate faculty of environment, university of tehran, p.o. box 14155-6135, tehran, iran m. thagiof nuclear fuel cycle school, nuclear science and technology research institute, aeoi, p.o.box 11365-3486, tehran, iran n. pakizevand nuclear fuel cycle school, nuclear science and technology research institute, aeoi, p.o.box 11365-3486, tehran, iran m.r. almasian nuclear fuel cycle school, nuclear science and technology research institute, aeoi, p.o.box 11365-3486, tehran, iran m.a. firoozzare nuclear fuel cycle school, nuclear science and technology research institute, aeoi, p.o.box 11365-3486, tehran, iran

a chelating resin is prepared by condensation polymerization of aniline with formaldehyde andcharacterized by ft-ir, elemental analysis and studied for the preconcentration and determination of traceplatinum ion from environmental water sample using inductively coupled plasma-atomic emission spectroscopy(icp-aes). the optimum ph value for sorption of the metal ions was 5. the maximum adsorption...

Journal: :international journal of environmental research 0

styrene is an important constituent of widely used organic solvents in industries for production of various synthetic materials. the use of solid-phase extraction (spe) has grown and is a fertile technique of sample preparation as it provides better results than those produced by liquidliquid extraction. in this study, spe has been optimized, regarding sample ph, sample concentration, sample fl...

Journal: :modares journal of medical sciences: pathobiology 2009
reza mahdian fahimeh shahrokhi mojtaba mohaddes ardebili zahra fardi azar ahmad kamyab

objective: in this study, the possibility of prenatal diagnosis of down syndrome with real-time pcr method was evaluated. in this context, optimization of a suitable method for purification of high quality dna from amniotic fluid samples was also considered. materials and methods: pregnant women who had the high risk of having babies with down syndrome were selected according to the biochemica...

2012
Anita Gojun Ulrich Heid Bernd Weißbach Carola Loth Insa Mingers

On the basis of the term candidate extraction tools under development in the EU project TTC, we designed an application for German and English data that serves as a first evaluation of the approach and of the techniques for monolingual term candidate extraction used in the project. The application situation highlighted, among others, the need for tools to remove incomplete word sequences from m...

Journal: :iranian journal of analytical chemistry 2014
sandeep jaggi usha gupta

a simple and sensitive method has been developed for the preconcentration and determination of trace level of co(ii) using uv-vis spectrophotometry. β-cyclodextrin polymer modified with 1-(2-pyridylazo)-2-naphthol (pan) is used for the preconcentration of co(ii) from samples at ph 8.5. the polymer is synthesized and characterized using elemental analysis, ft-ir and sem analysis. the factors aff...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2004
nasser dallali y. k. agrawal

magnesium is extracted with a chloroform solution of n-p-tolyl-2- thenohydroxamic acid (pttha) from aqueous solution of ph 9.5 .mg-pttha complex is colourless and the colour is developed by adding quinalizarin into the extract. lmax and e of the complex are 590nm and 2.8´103 lmol -1cm-1respectively.most common  ions do not interfere in the determination of magnesium. the spectral characteristic...

Journal: :analytical and bioanalytical chemistry research 0
mir ali farajzadeh department of analytical chemistry, faculty of chemistry, university of tabriz, tabriz, iran maryam abbaspoura abbaspour department of analytical chemistry, faculty of chemistry, university of tabriz, tabriz, iran mohammad reza afshar mogaddama afshar mogaddam department of analytical chemistry, faculty of chemistry, university of tabriz, tabriz, iran ali akbar alizadeh nabil alizadeh nabil food and drug laboratories, tabriz university of medical sciences, tabriz, iran

an air–assisted liquid–liquid microextraction method for the extraction and preconcentration of trace amounts of some synthetic phenolic antioxidants in biological fluids followed by their determination by gas chromatography–flame ionization detection has been reported. in this method the target analytes are extracted into a few microliters of carbon tetrachloride (extraction solvent) from an a...

2014
Yang Liu Kang Liu Liheng Xu Jun Zhao

Distantly supervised relation extraction, which can automatically generate training data by aligning facts in the existing knowledge bases to text, has gained much attention. Previous work used conjunction features with coarse entity types consisting of only four types to train their models. Entity types are important indicators for a specific relation, for example, if the types of two entities...

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