PubAg

Main content area

You searched for: Author "Sharafi, Kiomars" Remove constraint Author: "Sharafi, Kiomars"
Start Over

Search

21  Search Results

« Previous | 1 - 20 of 21 |
Number of results to display per page

Search Results

1. Determination of Diazinon, Phosalone and Endosulfan in Raw Milk using Continuous Sample Drop Flow Microextraction Followed by High Performance Liquid Chromatography‒Ultraviolet Detection

Author:
Sharafi, Kiomars,   et al.   ; Meghdad Pirsaheb,; Fattahi, Nazir; Amirian, Farhad;     Show all 4 Authors
Source:
Journal of analytical chemistry 2019 v.74 no.2 pp. 114-120
ISSN:
1061-9348
Subject:
aqueous solutions; calibration; cattle housing; chemical species; detection limit; diazinon; droplets; endosulfan; graphs; high performance liquid chromatography; microextraction; phosalone; raw milk; solvents; sustainable technology; Iran
Abstract:
... The purpose of this study was to determine common pesticides in raw milk from the industrial cattle houses of Kermanshah region of Iran. A novel, simple, inexpensive, reliable and environmentally friendly method based on continuous sample drop flow microextraction combined with high-performance liquid chromatography-ultraviolet detection was developed. In this technique, a few microliters of organ ...
DOI:
10.1134/S1061934819020096

2. Bioaccessibility analysis of toxic metals in consumed rice through an in vitro human digestion model- comparison of calculated human health risk from raw, cooked and digested rice

Author:
Sharafi, Kiomars,   et al.   ; Nodehi, Ramin Nabizadeh; Mahvi, Amir Hossein; Pirsaheb, Meghdad; Nazmara, Shahrokh; Mahmoudi, Babak; Yunesian, Masoud;     Show all 7 Authors
Source:
Food chemistry 2019 pp. 125126
ISSN:
0308-8146
Subject:
arsenic; bioavailability; cadmium; food crops; health effects assessments; human health; in vitro digestion; intestines; lead; rice; spectroscopy; toxicity
Abstract:
... The health risk assessment of exposure to toxic metals through the consumption food crops is very important. The present study was aimed to investigate the bioaccessibility of toxic metals (including arsenic, lead and cadmium) in rice through an in vitro gastrointestinal digestion model, and assess health risks associated with these metals in raw, cooked and digested rice. Total and bioaccessible ...
DOI:
10.1016/j.foodchem.2019.125126

3. The reduction of toxic metals of various rice types by different preparation and cooking processes – Human health risk assessment in Tehran households, Iran

Author:
Sharafi, Kiomars,   et al.   ; Yunesian, Masoud; Nodehi, Ramin Nabizadeh; Hossein Mahvi, Amir; Pirsaheb, Meghdad; Nazmara, Shahrokh;     Show all 6 Authors
Source:
Food chemistry 2019 v.280 pp. 294-302
ISSN:
0308-8146
Subject:
arsenic; boiling; cadmium; cooking; health effects assessments; households; human health; lead; rice; soaking; toxicity; washing; Iran
Abstract:
... In this study, the effect of washing, soaking (1, 5 and 12 h), and cooking rice methods including Rinsed (boiling in excess water) and Kateh (conventional) cooking on the reduction of the arsenic (As), lead (Pb), and cadmium (Cd) were evaluated. The results showed that the rinsed cooking has higher efficiency for removal of toxic metals (As = 42.3%, Pb = 42.9% and = 27.6%) than Kateh method (As =  ...
DOI:
10.1016/j.foodchem.2018.12.060

4. Human health risk assessment for some toxic metals in widely consumed rice brands (domestic and imported) in Tehran, Iran: Uncertainty and sensitivity analysis

Author:
Sharafi, Kiomars,   et al.   ; Nodehi, Ramin Nabizadeh; Yunesian, Masud; Hossein Mahvi, Amir; Pirsaheb, Meghdad; Nazmara, Shahrokh;     Show all 6 Authors
Source:
Food chemistry 2019 v.277 pp. 145-155
ISSN:
0308-8146
Subject:
arsenic; cadmium; food contamination; health effects assessments; heavy metals; human health; lead; rice; risk; uncertainty; Iran
Abstract:
... The aim of this study was to evaluate the contamination of widely consumed rice brands in Tehran, Iran with three heavy metals: arsenic, lead, and cadmium. To this end, 250 rice samples were collected and 90 samples out of them were analyzed using ICP-MS. Finally, human health risk assessment were performed. Our results showed that the average of lead, cadmium, and arsenic concentrations in Indian ...
DOI:
10.1016/j.foodchem.2018.10.090

5. Knowledge, attitude and practices of farmers about pesticide use, risks, and wastes; a cross-sectional study (Kermanshah, Iran)

Author:
Sharafi, Kiomars,   et al.   ; Pirsaheb, Meghdad; Maleki, Sara; Arfaeinia, Hossein; Karimyan, Kamaladdin; Moradi, Masoud; Safari, Yahya;     Show all 7 Authors
Source:
The Science of the total environment 2018 v.645 pp. 509-517
ISSN:
0048-9697
Subject:
agricultural land; cross-sectional studies; education programs; educational status; farmers; income; pesticides; questionnaires; regression analysis; risk; toxic substances; waste management; wastes; Iran
Abstract:
... This study was aimed to investigate the knowledge, attitude, and behavior of farmers about the pesticide use and wastes, and to determine the factors affecting the use of pesticides and their health effects, in agricultural lands located in Kermanshah province, western Iran. Three hundred eleven (311) farmers were included in this study, and filled a structured questionnaire containing questions a ...
DOI:
10.1016/j.scitotenv.2018.07.132

6. Persistent sample circulation microextraction combined with graphite furnace atomic absorption spectroscopy for trace determination of heavy metals in fish species marketed in Kermanshah, Iran, and human health risk assessment

Author:
Sharafi, Kiomars,   et al.   ; Safari, Yahya; Karimaei, Mostafa; Arfaeinia, Hossein; Moradi, Masoud; Fattahi, Nazir;     Show all 6 Authors
Source:
Journal of the science of food and agriculture 2018 v.98 no.8 pp. 2915-2924
ISSN:
0022-5142
Subject:
aqueous solutions; atomic absorption spectrometry; cadmium; calibration; carbon tetrachloride; detection limit; droplets; fish; fish consumption; graphene; health effects assessments; heavy metals; human health; hydrophobicity; lead; mercury; microextraction; solvents; Iran
Abstract:
... BACKGROUND: Persistent sample circulation microextraction (PSCME) combined with graphite furnace atomic absorption spectrometry (GFAAS) was developed as a high pre‐concentration technique for the determination of heavy metals in fish species. In this method, a few microliters of organic solvent (40.0 µL carbon tetrachloride) was transferred to the bottom of a conical sample cup. Then 10.0 mL of aq ...
DOI:
10.1002/jsfa.8786

7. Density assessment and mapping of microorganisms around a biocomposting plant in Sanandaj, Iran

Author:
Sharafi, Kiomars,   et al.   ; Rashidi, Sanaz; Shahmoradi, B.; Maleki, Afshin; Darvishi, Ebrahim;     Show all 5 Authors
Source:
Environmental monitoring and assessment 2017 v.189 no.5 pp. 233
ISSN:
0167-6369
Subject:
Klebsiella; Staphylococcus aureus; agar; air; bacteria; composts; cough; dyspnea; fungi; human resources; humidity; inflammation; intestinal microorganisms; lung function; temperature; traffic; wind speed; Iran
Abstract:
... Exposure to microorganisms can cause various diseases or exacerbate the excitatory responses, inflammation, dry cough and shortness of breath, reduced lung function, chronic obstructive pulmonary disease, and allergic response or allergic immune. The aim of the present study was to investigate the density of microorganisms around the air of processing facilities of a biocomposting plant. Each expe ...
DOI:
10.1007/s10661-017-5914-6

8. Essential and toxic heavy metals in cereals and agricultural products marketed in Kermanshah, Iran, and human health risk assessment Part B Surveillance

Author:
Sharafi, Kiomars,   et al.   ; Pirsaheb, Meghdad; Fattahi, Nazir; Khamotian, Razieh; Atafar, Zahra;     Show all 5 Authors
Source:
Food additives & contaminants 2016 v.9 no.1 pp. 15-20
ISSN:
1939-3229
Subject:
Codex Alimentarius; cadmium; chromium; copper; grains; heavy metals; human health; ingestion; lead; markets; nickel; risk assessment; spectroscopy; toxicity; zinc; Iran
Abstract:
... Levels of some essential and toxic heavy metals such as lead, cadmium, chromium, nickel, zinc and copper in cereals and agricultural products obtained from the markets in Kermanshah city, west Iran, were determined by inductively coupled plasma-optical emission spectrometry (ICP-OES). The average concentrations for lead and cadmium in some cereals were higher than the maximum levels set by the Cod ...
DOI:
10.1080/19393210.2015.1099570

9. Evaluation of abamectin, diazinon and chlorpyrifos pesticide residues in apple product of Mahabad region gardens: Iran in 2014

Author:
Sharafi, Kiomars,   et al.   ; Pirsaheb, Meghdad; Fattahi, Nazir; Rahimi, Rahim; Ghaffari, Hamid Reza;     Show all 5 Authors
Source:
Food chemistry 2017 v.231 pp. 148-155
ISSN:
0308-8146
Subject:
World Health Organization; abamectin; apples; chlorpyrifos; diazinon; gardens; pesticide residues; spraying; wind direction; Iran
Abstract:
... The purpose of this study was to investigate abamectin, diazinon and chlorpyrifos in apple from the Mahabad of Iran. The influences of several parameters including shadow and sun, geographical directions and varieties of apples, whether they are golden or red type, was also taken into account on the residuals of the pesticides in the samples. The results indicated that sun considerably decreased t ...
DOI:
10.1016/j.foodchem.2017.03.120

10. Optimization of a methodology for the simultaneous determination of deltamethrin, permethrin and malathion in stored wheat samples using dispersive liquid–liquid microextraction with solidification of floating organic drop and HPLC-UV Part B Pesticides, food contaminants, and agricultural wastes

Author:
Sharafi, Kiomars,   et al.   ; Pirsaheb, Meghdad; Rezaei, Mansour; Fattahi, Nazir; Karami, Mohammad; Ghaffari, Hamid R.;     Show all 6 Authors
Source:
Journal of environmental science and health 2017 v.52 no.9 pp. 641-650
ISSN:
1532-4109
Subject:
European Union; climatic factors; deltamethrin; high performance liquid chromatography; liquid-phase microextraction; malathion; permethrin; pesticide residues; silos; solidification; stored grain; sustainable technology; wheat; Europe; Iran
Abstract:
... The purpose of this study was to investigate common pesticides in stored wheat at Kermanshah province's silos in Iran. A simple, inexpensive, reliable and environmentally friendly method based on dispersive liquid–liquid microextraction with solidification of floating organic drop was developed. The analytical characteristics of the method were determined. Also, various parameters such as the mate ...
DOI:
10.1080/03601234.2017.1330078

11. Optimization of a methodology for simultaneous determination of twelve chlorophenols in environmental water samples using in situ derivatization and continuous sample drop flow microextraction combined with gas chromatography-electron-capture detection

Author:
Sharafi, Kiomars,   et al.   ; Karimaei, Mostafa; Moradi, Masoud; Ghaffari, Hamid Reza; Biglari, Hamed; Arfaeinia, Hossein; Fattahi, Nazir;     Show all 7 Authors
Source:
Analytical methods 2017 v.9 no.19 pp. 2865-2872
ISSN:
1759-9679
Subject:
aqueous solutions; calibration; chlorobenzene; chlorophenols; derivatization; detection limit; droplets; gas chromatography; graphs; microextraction; river water; solvents; standard deviation
Abstract:
... Continuous sample drop flow microextraction (CSDFME) combined with gas chromatography-electron-capture detection (GC-ECD) has been developed as a high preconcentration technique for the determination of chlorophenols (CPs) in environmental water samples. In this method, a few microliters of organic solvent (11.0 μL chlorobenzene) is transferred to the bottom of a conical test tube. Then 10.0 mL of ...
DOI:
10.1039/c7ay00530j

12. A review and investigation of the effect of nanophotocatalytic ozonation process for phenolic compound removal from real effluent of pulp and paper industry

Author:
Sharafi, Kiomars,   et al.   ; Biglari, Hamed; Afsharnia, Mojtaba; Alipour, Vali; Khosravi, Rasoul; Mahvi, Amir Hossein;     Show all 6 Authors
Source:
Environmental science and pollution research international 2017 v.24 no.4 pp. 4105-4116
ISSN:
0944-1344
Subject:
Daphnia; fauna; flora; lighting; ozonation; ozone; pH; phenolic compounds; pollutants; pulp and paper industry; spectroscopy; surface water; toxicity; toxicity testing; ultraviolet radiation; zinc oxide
Abstract:
... Phenol and its derivatives are the major environmental pollutants discharged from paper and pulp industries into water bodies. All these compounds and chlorinated phenolic compounds in particular are very toxic to fauna and flora, even at relatively low concentration. This study aimed to investigate the removal rate of phenolic compounds from the effluent of pulp and paper industries using a combi ...
DOI:
10.1007/s11356-016-8079-x

13. Simultaneous determination of imidacloprid and diazinon in apple and pear samples using sonication and dispersive liquid–liquid microextraction

Author:
Sharafi, Kiomars,   et al.   ; Pirsaheb, Meghdad; Fattahi, Nazir; Pourhaghighat, Saide; Shamsipur, Mojtaba;     Show all 5 Authors
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2015 v.60 no.2 pp. 825-831
ISSN:
0023-6438
Subject:
apples; diazinon; fruits; gardens; high performance liquid chromatography; imidacloprid; liquid-phase microextraction; pears; solidification
Abstract:
... The combination of sonication and dispersive liquid–liquid microextraction based on the solidification of floating organic drop (SDLLME–SFO) has been developed for extraction and determination of imidacloprid and diazinon from apple and pear samples. Target pesticides were determined by high performance liquid–liquid chromatography-ultraviolet detector (HPLC–UV). Some effective parameters on extra ...
DOI:
10.1016/j.lwt.2014.10.018

14. A comparative study of anaerobic fixed film baffled reactor and up-flow anaerobic fixed film fixed bed reactor for biological removal of diethyl phthalate from wastewater: a performance, kinetic, biogas, and metabolic pathway study

Author:
Sharafi, Kiomars,   et al.   ; Yousefzadeh, Samira; Ahmadi, Ehsan; Gholami, Mitra; Ghaffari, HamidReza; Azari, Ali; Ansari, Mohsen; Miri, Mohammad; Rezaei, Soheila;     Show all 9 Authors
Source:
Biotechnology for biofuels 2017 v.10 no.1 pp. 139
ISSN:
1754-6834
Subject:
biochemical pathways; biogas; biomass production; bioreactors; chemical oxygen demand; industry; mathematical models; methane production; microbial growth; phthalates; pollutants; prediction; sludge; wastewater
Abstract:
... BACKGROUND: Phthalic acid esters, including diethyl phthalate (DEP), which are considered as top-priority and hazardous pollutants, have received significant attention over the last decades. It is vital for industries to select the best treatment technology, especially when the DEP concentration in wastewater is high. Meanwhile, anaerobic biofilm-based reactors are considered as a promising option ...
DOI:
10.1186/s13068-017-0826-9
PubMed:
28580013
PubMed Central:
PMC5452402

15. Magnetic adsorption separation process: an alternative method of mercury extracting from aqueous solution using modified chitosan coated Fe3O4 nanocomposites

Author:
Sharafi, Kiomars,   et al.   ; Azari, Ali; Gharibi, Hamed; Kakavandi, Babak; Ghanizadeh, Ghader; Javid, Allahbakhsh; Mahvi, Amir Hossein; Khosravia, Touba;     Show all 8 Authors
Source:
Journal of chemical technology and biotechnology 2017 v.92 no.1 pp. 188-200
ISSN:
0268-2575
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; analysis of variance; aqueous solutions; batch systems; chitosan; energy-dispersive X-ray analysis; glutaraldehyde; heat production; iron oxides; kinetics; mercury; nanocomposites; pH; scanning electron microscopy; sorption isotherms; wastewater
Abstract:
... BACKGROUND: In the present work, Hg (II) is considered as one of the most dangerous elements being released excessively into the environment from various sources. Therefore, the aim of this study is the removal of Hg (II) from wastewater effluent by synthesizing a magnetic chitosan modified with glutaraldehyde (MCS‐GA) as an adsorbent. The composite structure was characterized using SEM/EDAX, FTIR ...
DOI:
10.1002/jctb.4990

16. Response surface methodology (RSM) and its application for optimization of ammonium ions removal from aqueous solutions by pumice as a natural and low cost adsorbent

Author:
Sharafi, Kiomars,   et al.   ; Moradi, Masoud; Fazlzadehdavil, Mehdi; Pirsaheb, Meghdad; Mansouri, Yadollah; Khosravi, Touba;     Show all 6 Authors
Source:
Archives of environmental protection 2016 v.42 no.2 pp. 33-43
ISSN:
2083-4810
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; ammonium compounds; aqueous solutions; mixing; models; physicochemical properties; pumice; response surface methodology; scanning electron microscopy
Abstract:
... This research was conducted to study the adsorption of ammonium ions onto pumice as a natural and low-cost adsorbent. The physico-chemical properties of the pumice granular were characterized by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Modeling and optimization of a NH₄⁺ sorption process was accomplished by varying four indepe ...
DOI:
10.1515/aep-2016-0018

17. Domestic scale vermicomposting for solid waste management

Author:
Sharafi, Kiomars,   et al.   ; Pirsaheb, Meghdad; Khosravi, Touba;     Show all 3 Authors
Source:
International journal of recycling of organics waste in agriculture 2013 v.2 no.1 pp. 4
ISSN:
2195-3228
Subject:
Eisenia fetida; biodegradability; carbon; carbon nitrogen ratio; earthworms; economic sustainability; electrical conductivity; environmental impact; gardens; homeowners; horticultural soils; indigenous species; nitrogen; nitrogen content; organic matter; organic wastes; pH; phosphorus; solid wastes; vermicomposting; waste disposal; water content
Abstract:
... BACKGROUND: Vermicomposting has recently been recognized as one of the most appropriate methods to stabilize organic waste. In terms of a system for waste management, vermicomposting is sustainable, economically viable, and without detrimental effects to human health or to the environment. The aim of this study was to evaluate the process of vermicomposting using an indigenous species of earthworm ...
DOI:
10.1186/2251-7715-2-4

18. Speciation of As(III) and As(V) in water samples by graphite furnace atomic absorption spectrometry after solid phase extraction combined with dispersive liquid–liquid microextraction based on the solidification of floating organic drop

Author:
Sharafi, Kiomars,   et al.   ; Shamsipur, Mojtaba; Fattahi, Nazir; Assadi, Yaghoub; Sadeghi, Marzieh;     Show all 5 Authors
Source:
Talanta 2014 v.130 pp. 26-32
ISSN:
0039-9140
Subject:
acetone; arsenic; atomic absorption spectrometry; calibration; chelating agents; liquid-phase microextraction; magnesium; nitrates; potassium iodide; sodium; solid phase extraction; solidification; solvents; sorbents; thiosulfates
Abstract:
... A solid phase extraction (SPE) coupled with dispersive liquid–liquid microextraction based on the solidification of floating organic drop (DLLME-SFO) method, using diethyldithiphosphate (DDTP) as a proper chelating agent, has been developed as an ultra preconcentration technique for the determination of inorganic arsenic in water samples prior to graphite furnace atomic absorption spectrometry (GF ...
DOI:
10.1016/j.talanta.2014.06.049

19. Trace analysis of some organophosphorus pesticides in rice samples using ultrasound‐assisted dispersive liquid–liquid microextraction and high‐performance liquid chromatography

Author:
Sharafi, Kiomars,   et al.   ; Fattahi, Nazir; Mahvi, Amir Hossein; Pirsaheb, Meghdad; Azizzadeh, Nahid; Noori, Masomeh;     Show all 6 Authors
Source:
Journal of separation science 2015 v.38 no.6 pp. 1010-1016
ISSN:
1615-9306
Subject:
Oryza sativa; detection limit; food contamination; high performance liquid chromatography; liquid-phase microextraction; organophosphorus pesticides; pesticide residues; rice; solidification; ultrasonic treatment
Abstract:
... An ultrasound‐assisted dispersive liquid–liquid microextraction based on solidification of a floating organic drop method followed by high‐performance liquid chromatography was developed for the extraction, preconcentration, and determination of trace amounts of organophosphorus pesticides in rice samples. Variables affecting the performance of both steps were thoroughly investigated. Some effecti ...
DOI:
10.1002/jssc.201401209

20. A comparative study on capability of different tree species in accumulating heavy metals from soil and ambient air

Author:
Sharafi, Kiomars,   et al.   ; Alahabadi, Ahmad; Ehrampoush, Mohammad Hassan; Miri, Mohammad; Ebrahimi Aval, Hamideh; Yousefzadeh, Samira; Ghaffari, Hamid Reza; Ahmadi, Ehsan; Talebi, Parvaneh; Abaszadeh Fathabadi, Zeynab; Babai, Fatemeh; Nikoonahad, Ali; Hosseini-Bandegharaei, Ahmad;     Show all 13 Authors
Source:
Chemosphere 2017 v.172 pp. 459-467
ISSN:
0045-6535
Subject:
Morus alba; Pinus brutia var. eldarica; air; autumn; bioaccumulation; cadmium; copper; heavy metals; lead; phytoremediation; plant tissues; pollution; soil; spring; summer; trees; urban areas; zinc
Abstract:
... Heavy metals (HMs) in the urban environment can be bio-accumulated by plant tissues. The aim of this study was to compare fourteen different tree species in terms of their capability to accumulate four airborne and soilborne HMs including; zinc (Zn), copper (Cu), lead (Pb), and cadmium (Cd). Samplings were performed during spring, summer, and fall seasons. To compare bioaccumulation ability, bio-c ...
DOI:
10.1016/j.chemosphere.2017.01.045