نتایج جستجو برای: dursban imprinted sorbent

تعداد نتایج: 10157  

Journal: :international journal of occupational hygiene 0
mohsen rahiminezhad department of occupational health, school of public health, tehran university of medical sciences, tehran, iran seyed jamaleddin shahtaheri department of occupational health, school of public health, center for environmental research, tehran university of medical sciences, tehran, iran mohammad reza ganjali 3center of excellence in electrochemistry, endocrine & metabolism research center, tehran university of medical sciences, tehran, iran ali-reza koohpaei department of occupational health, qom university of medical sciences, qom, iran. abbas rahimi forushani department of biostatistics, school of public health, tehran university of medical sciences, tehran farideh golbabaei department of occupational health, school of public health, tehran university of medical sciences, tehran, iran

this study describes the synthesis of molecularly imprinted polymers (mips) by using an anti-che ops, namely dursban, as a template. non-covalent bulk polymerization was successfully applied to synthesis different imprinted and non-imprinted polymers with maa, mma, aa, and 4-vpy as monomer in selected porogens (chloroform, toluene, and acetonitrile). in order to evaluate the template binding of...

2013
Siti Farhana Abdul Raof Sharifah Mohamad Mhd Radzi Abas

A molecularly imprinted silica gel sorbent for selective removal of 2-Hydroxybenzoic acid (2-HA) was prepared by a surface imprinting technique with a sol-gel process. The 2-HA molecularly imprinted silica gel (2-HA-MISG) sorbent was evaluated by various parameters, including the influence of pH, static, kinetic adsorption and selectivity experiments. The optimum adsorption capacity to the 2-HA...

Journal: :Water research 2011
Huijuan Liu Fan Yang Yuming Zheng Jin Kang Jiuhui Qu J Paul Chen

Technology for immobilization of biomass has attracted a great interest due to the high sorption capacity of biomass for sequestration of toxic metals from industrial effluents. However, the currently practiced immobilization methods normally reduce the metal sorption capacities. In this study, an innovative ion-imprint technology was developed to overcome the drawback. Copper ion was first imp...

Journal: :The Analyst 2000
L I Andersson

The ability to use imprinted polymers for solid-phase extraction is demonstrated in a model pre-concentration of bupivacaine from human plasma samples prior to gas chromatography. Imprinting of the structural analogue pentycaine yielded a sorbent which efficiently extracted analyte and internal standard, while possible interference on analyte quantification from leakage of remaining template mo...

Homayon Ahmad Panahi Mahboobeh Manoochehri Meghdad Karimi

A new Pb(II) imprinted mercapto functionalized Montmorillonite was synthesize by an easy one step reaction by combining a surface imprinting technique for selective phase extraction of Pb(II) prior to its determinations by flame atomic absorption spectroscopy. The modified sorbent was characterized by FTIR and studied for preconcentration and determination of Pb(II) in natural water samples. Th...

2017
Changgen Feng

In the present study, a novel Ni(II) ion-imprinted sulfonate functionalized silica gel polymer was prepared with the surface imprinting technique by using nickel(II) as the template ion, grafted silica gel as the support, and 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and ethylene glycol dimethacrylate (EGDMA) as the functional monomer and crosslinker, respectively. The sorbent was cha...

Journal: :Food chemistry 2017
Elahe Kazemi Shayessteh Dadfarnia Ali Mohammad Haji Shabani Mansoureh Ranjbar

A novel Zn(II) imprinted polymer was synthesized via a co-precipitation method using graphene oxide/magnetic chitosan nanocomposite as supporting material. The synthesized imprinted polymer was characterized by Fourier transform infrared spectrometry (FTIR) and scanning electron microscopy (SEM) and applied as a sorbent for selective magnetic solid phase extraction of zinc followed by its deter...

2013
Mahboobeh Manoochehri Homayon Ahmad Panahi Meghdad Karimi M. Manoochehri

Mahboobeh Manoochehri*, Homayon Ahmad Panahi, Meghdad Karimi Department of Chemistry, Islamic Azad University, Tehran Central Branch, Tehran, Iran. (Received 10 May 2012; Final version received 23 Nov. 2012) Abstract A new Pb(II) imprinted mercapto functionalized Montmorillonite was synthesize by an easy one step reaction by combining a surface imprinting technique for selective phase extractio...

Journal: :journal of chemical health risks 0
saeedeh ansari department of chemistry, islamic azad university, saveh branch, saveh, iran azam ghorbani department of chemistry, islamic azad university, saveh branch, saveh, iran

in this study, for the analysis of human urine samples, a novel method explained for the determination of celecoxib, a nonsteroidal anti-inflammatory drug (nsaid), using molecularly imprinted solid-phase extraction (mispe) coupled with high-performance liquid chromatography (hplc). the synthesis of the mip was performed by precipitation polymerization in methacrylic acid (maa), ethylene glycol ...

Journal: :Talanta 2010
Amjad H El-Sheikh Rasha W Al-Quse Musa I El-Barghouthi Fida'a S Al-Masri

Molecularly imprinted polymer (MIP) may not selectively recognize small template of limited number of functional groups, such as 2-chlorophenol (2-CP). In this work, a novel method was proposed to improve the recognition ability of the molecularly imprinted solid phase extraction (MISPE) of 2-CP from environmental waters. This was achieved by derivatization of 2-CP with 4-amino-anti-pyrine (4-A...

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