Amir Salemi

Amir Salemi
Shahid Beheshti University | SBU · Environmental Sciences Research Institute

Ph.D in Analytical chemistry

About

32
Publications
3,089
Reads
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697
Citations
Citations since 2016
17 Research Items
355 Citations
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20162017201820192020202120220204060
20162017201820192020202120220204060
20162017201820192020202120220204060
Introduction
Currently working on detection and quantification of some classes of organic micropollutants: PBDEs; hormones and PPCPs, in STP influent and effluent, receiving waters, agricultural soil and crops.
Additional affiliations
September 2006 - present
Shahid Beheshti University
Position
  • Professor (Assistant)
January 2006 - October 2016
Shahid Beheshti University
Position
  • Professor (Assistant)

Publications

Publications (32)
Article
The presence and the concentration of taste and odor compounds are important parameters of drinking water quality. They have extremely low odor thresholds that requires their determination at levels below the capabilities of the analytical instrumentation, unless an enrichment process is added to the procedure. Several variations of solid- and liqu...
Article
Full-text available
UV filters as an important class of emerging organic pollutants are continuously released into and transported between the aquatic environments. So, the removal of these compounds from aquatic environments is of great importance. This study was conducted to evaluate the simultaneous photodegradation of three widely used UV filter compounds (4-methy...
Article
Introduction: pharmaceuticals, personal care products and steroid hormones are emerging pollutants whose main production source is human societies. Municipal wastewater treatment plants have a very effective role in reducing and eliminating these pollutants, however, complete elimination of these compounds is usually not possible and some of these...
Article
Full-text available
Graphene oxide (GO) is used to enhance the photocatalytic activity of ZnO nanoparticles for the degradation of vanillic acid (VA) under simulated solar light and visible-LED (λ > 430 nm). ZnO-GO composites are prepared by a mixing and sonication process with different GO loadings (i.e., from 1.8 to 6.5 wt.%). The materials are extensively character...
Article
Pesticides are compounds which can affect human, environmental and aquatic system health. Therefore, the detection and determination of these compounds at trace level concentrations is of great importance. In this study selected pesticides out of four classes were investigated as target analytes: Dichlorovos as an insecticide, terbutryn as herbicid...
Article
In the present work, a very sensitive and fully automated direct immersion PAL SPME Arrow procedure, coupled with GC-MS, has been developed and validated for determination of nine phosphorus flame retardants in different types of water samples (river, drinking and rainwater). PDMS/DVB was selected among three commercially available SPME Arrows (PDM...
Article
Taste and odor compounds are organic chemicals produced via biochemical processes, and their presence, even at low nanogram-per-liter concentrations, can make water useless for drinking purposes. In this work, a very sensitive and completely automated analytical procedure, based on solid-phase microextraction, has been developed and optimized for d...
Article
A micro-solid-phase extraction technique has been developed, for determination of organochlorine pesticides in water media, using gas chromatography-electron capture detector. Response surface methodology was applied to optimize the performance of the extraction technique. Also, the effect of significant experimental parameters (i.e. extraction tim...
Article
A method based on membrane‐protected micro‐solid‐phase extraction coupled with gas chromatography and mass spectrometry was developed for the determination of six UV filter compounds in various aqueous media. Multi‐walled carbon nanotubes as the sorbent were encapsulated in a sealed polypropylene membrane packet and immersed in the sample to extrac...
Article
The presented article describes the methodology and results of investigating the capability of multiwalled carbon nanotube as sorbent in an efficient extraction method for determination of organochlorine pesticides, α-BHC, β-BHC, γ-BHC, heptachlor, endrin, aldrin, 4,4′-DDD, 4,4′-DDE and 4,4′-DDT, in soil media. Matrix solid-phase dispersion was opt...
Article
In the present study, a fast LC method coupled with multivariate curve resolution (MCR) alternating least-squares (ALS)and alternating trilinear decomposition (ATLD) was developed for the determination of the resolution of and quantitation of benzophenone-3, 4-methylbenzylidene camphor, octocrylene, ethylhexyl dimethyl para-aminobenzoic acid, butyl...
Article
A novel and efficient method has been developed for the determination of organochlorine pesticides in soil using gas chromatography-electron capture detection. To achieve the optimum performance for simultaneous analysis of the selected analytes, the most important experimental parameters: extraction time, added water volume, salting-out effect, de...
Article
Two alternative matrix nano-solid phase dispersion approaches coupled with HPLC-DAD were developed for the determination of sulfadiazine, sulfamerazine and sulfamethoxazole in STP sludge samples. 0.2 g portions of the sludge sample were mixed with MWCNT-silica, and/or nano-silica-C18 as dispersant-sorbent materials and then extracted with appropria...
Article
Full-text available
Due to the increasing population and the growing need for providing energy from a clean and non-fossil resource, there is an increasing interest in nuclear energy all over the world. As a fact, environmental capability evaluation should be considered for establishment of new nuclear power plants, not only to increase the safety against environmenta...
Research
Full-text available
This paper concerns the results of a research project entitled " Detection of illicit drugs in herbal weight loss products in Iran", published in "Medical Journal of Tabriz University of Medical Sciences and Health Services" Vol. 36, No. 2, Jun. – Jul. 2014, Pages: 86-93
Article
Full-text available
In the present study, a simple strategy based on solid-phase extraction (SPE) with a cation exchange sorbent (Finisterre SCX) followed by fast high-performance liquid chromatography (HPLC) with diode array detection coupled with chemometrics tools has been proposed for the determination of methamphetamine and pseudoephedrine in ground water and riv...
Article
This work describes optimization of headspace single drop micro-extraction for extraction of five organophosphorus pesticides; thionazin, sulfotep, dimethoate, disulfoton and parathion in soil. Ultrasound has also been used successfully to improve and accelerate the extraction of the analytes from the sample. The optimized extraction performance wa...
Article
In the present study, dispersive liquid-liquid microextraction followed by high performance liquid chromatography-diode array detection has been developed as simple, rapid, accurate, and efficient sample preparation method for simultaneous determination of seven organic UV filters in urine samples. The influence of the main effects as well as their...
Article
A fast, simple and efficient technique based on matrix solid phase dispersion has been presented for extraction and clean-up of some chlorinated pesticides and derivative products; α-BHC, β-BHC, γ-BHC, δ-BHC, heptachlor, aldrin, dieldrin, endrin, endosulfan 1, endosulfan 2, 4,4'-DDT, 4,4'-DDE, 4,4'-DDD, heptachlor epoxide, endrin aldehyde, endosulf...
Article
UV-filter compounds, which are mostly formulated in cosmetic and hygienic products, are known as an emerging group of environmental pollutants. Solid phase extraction using silica based sorbents followed by high performance liquid chromatography has been the most frequently used technique for extraction and analysis of these analytes in the product...
Article
A new methodology using second-order calibration based on PARAllel FACtor analysis 2 (PARAFAC2) is developed for fast quantification of aflatoxins B1, B2, G1 and G2 in pistachio samples by liquid chromatography with diode array detection (LC-DAD). Solvent and solid phase extractions were used for sample preparation steps. In this work, a gradient e...
Article
Full-text available
In the crystal structure of the title compound, C(22)H(19)N(3)O(3), inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into a zigzag chain parallel to the face diagonal of the ac plane. The meth-oxy phenyl rings make a dihdral angle of 32.38 (7)° and form dihedral angles of 0.66 (8) and 24.17 (7)° with the fused benzooxazine ring system.
Article
Full-text available
In the present study a second-order calibration strategy for high performance liquid chromatography with diode-array detection (HPLC-DAD) has been developed using parallel factor analysis (PARAFAC) and has been applied for simultaneous determination of aflatoxins B(1), B(2), G(1) and G(2) in pistachio nuts in the presence of matrix interferences. S...
Article
An immersed single drop microextraction (SDME) method was successfully developed for the trace enrichment of formaldehyde from DTP and DT vaccines and diphtheria-tetanus antigen. The formaldehyde was derivatized by means of the Hantzsch reaction. The dehydropyridine derivative was extracted into a microdrop of chloroform that suspended in a 4 ml sa...
Article
In the present work two second-order calibration methods, generalized rank annihilation method (GRAM) and multivariate curve resolution-alternating least square (MCR-ALS) have been applied on standard addition data matrices obtained by gas chromatography-mass spectrometry (GC-MS) to characterize and quantify four unsaturated fatty acids cis-9-hexad...
Article
An automated technique based on purge-and-trap coupled to gas chromatography with mass spectrometric detection has been developed and optimized for the trace determination of five of the most important water odorants; 2-isopropyl-3-methoxypyrazine, 2-isobutyl-3-methoxypyrazine, 2-methylisoborneol, 2,4,6-trichloroanisole and geosmin. The extraction...
Article
A headspace solvent microextraction method was developed for the trace determination of geosmin, an odorant compound, in water samples. After performing the extraction by a microdrop of an organic solvent, the microdrop was introduced directly into a GC-MS injection port. One-at-the-time optimization strategy was applied to investigate and optimize...
Article
A pyrrole-based conductive polymer was prepared and applied as new sorbent for on-line solid-phase extraction (SPE) of phenol and chlorophenols from water samples. Polypyrrole (PPy) was synthesized by chemical oxidation of the monomer in non-aqueous solution. The efficiency of this polymer for extraction of phenol and chlorophenols was evaluated us...
Article
A modified in-tube solid phase microextraction (SPME) technique in conjunction with a high performance liquid chromatography (HPLC) was developed for the trace determination of polycyclic aromatic hydrocarbons (PAHs) in water samples. The extraction device contained a regular HPLC syringe, replacing the metallic needle by two concentric fused silic...

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Project (1)
Project
Study of fate and transport of emerging contaminants