نتایج جستجو برای: ph sensitive ion exchange resin

تعداد نتایج: 818374  

2002
A. Olness D. W. Archer R. W. Gesch J. Rinke

Resin extraction of soil permits evaluation of ratios of readily extracted elements and correlation of concentrations obtained with crop yield. This information provides guidance on potential genotype selection and fertility management. Two hybrids of maize (Zea mays L.), designated 2292 and 3895, were grown annually in rotational succession on a 3.2-ha site with soybean (Glycine max L.) and wh...

Journal: :Environmental science & technology 2012
Dennis P Chen Changjun Yu Ching-Yu Chang Yanjian Wan Jean M J Frechet William A Goddard Mamadou S Diallo

Perchlorate (ClO(4)(-)) is a persistent contaminant found in drinking groundwater sources in the United States. Ion exchange (IX) with selective and disposable resins based on cross-linked styrene divinylbenzene (STY-DVB) beads is currently the most commonly utilized process for removing low concentrations of ClO(4)(-) (10-100 ppb) from contaminated drinking water sources. However, due to the l...

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...

2010
A. M. Suthar M. M. Patel

ION EXCHANGE RESIN AS AN IMPOSING METHOD FOR TASTE MASKING: A REVIEW A. M. Suthar* and M. M. Patel Saraswati School of Pharmacy, Ranela, Gujarat, India Kalol Institute of Pharmacy, Kalol, Gujatat, India ABSTRACT Taste masking becomes a pre-requisite for bitter drugs to improve the patient compliance especially in the pediatric and geriatric population. Conventional taste masking techniques such...

Journal: :International journal of radiation applications and instrumentation. Part A, Applied radiation and isotopes 1990
D M Jewett S A Toorongian M A Bachelor M R Kilbourn

[18F]Fluoride for nucleophilic radiofluorination was recovered from target water by trapping on a fibrous anion exchange resin in the hydroxide form and subsequent displacement into wet methanolic K2CO3. Extraction into methanol facilitated rapid evaporation and resolubilization of the [18F]fluoride as an ion pair. The resin was first dried in situ and rehydrated with [18O]H2O to avoid isotopic...

Journal: :Journal of Japan Oil Chemists' Society 1960

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