_1574514101 1574514101 Hamid Shirkhanloo sahar.zi67@gmail.com Hamid Shirkhanloo Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 09 25 2019 2 03 10.24200/amecj.v2.i03 http://journal.amecj.com/index.php/AMECJ-01/issue/view/9 *Negar Motakef Kazemi In this research, the metal–organic framework (MOF) as a solid phase was used for separation mercury [Hg (II)] inhuman serum sample by ultrasound assisted- Ionic Liquid-solid phase microextraction procedure (USA- IL-μ-SPE). Mercury extracted from serum sample by [Zn2(BDC)2(DABCO)]n as MOF at pH=7.8. Hydrophobic ionic liquid ([BMIM] [PF6]) was used as solvent trap for Hg-MOF-NC from the sample solution. The phase of Hg-MOF-NC was back extracted by 0.5 mL of HNO3 (0.2 mol L-1) and finally mercury concentration determined with cold vapor-atomic absorption spectrometry (CV-AAS) after dilution with 0.5 mL of DW. Under the optimal conditions, the linear range, limit of detection and preconcentration factor were obtained 0.02–5.5 µg L−1, 6.5 ng L−1 and 9.8 for serum samples, respectively (%RSD<5%). The validation of methodology was confirmed by standard reference materials (SRM). 11 13 2019 67 78 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i03.68 http://journal.amecj.com/index.php/AMECJ-01/article/view/68 http://journal.amecj.com/index.php/AMECJ-01/article/download/68/122 http://journal.amecj.com/index.php/AMECJ-01/article/download/68/122 http://journal.amecj.com/index.php/AMECJ-01/article/download/68/132 Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 09 25 2019 2 03 10.24200/amecj.v2.i03 http://journal.amecj.com/index.php/AMECJ-01/issue/view/9 Mojtaba Arjomandi *Hamid Shirkhanloo Heavy metals are vital and necessary in our daily lives. Moreover, if the amounts of heavy metals are more than the acceptable amounts (mentioned by WHO) in soil, water, and air, indeed, they cause a lot of diseases in human bodies. Therefore, monitoring and measuring the amounts of heavy metals that are arduous and difficult are so important. In this review paper, a lot of studies that have been carried out on the determination and quantification of heavy metals in human bodies, soil, and water are considered. Moreover, the effect of toxicity of each heavy metal on human health is assessed. According to WHO, EPA, NIOSH, ACGIH, and clinical chemistry, the determination of heavy metals such as Cd, Pb, Zn, Hg, Cu, Mn is very important in the human body and Environmental matrixes.  09 30 2019 97 126 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i03.73 http://journal.amecj.com/index.php/AMECJ-01/article/view/73 http://journal.amecj.com/index.php/AMECJ-01/article/download/73/125 http://journal.amecj.com/index.php/AMECJ-01/article/download/73/125 http://journal.amecj.com/index.php/AMECJ-01/article/download/73/135 Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 09 25 2019 2 03 10.24200/amecj.v2.i03 http://journal.amecj.com/index.php/AMECJ-01/issue/view/9 *Ali Ebrahimi Ahmad Salarifar Mercury as a hazardous material caused health problem in humans.In this study,mercury vapor removed from air by nickel-coated on multi-walled carbon nanotubes(Ni-MWCNTs)as a novel sorbent.Amalgamation of mercury with Ni-MWCNTs was achieved by solid-gas phase removal method(SGPR).In bench scale set up, the mercury vapor generated and moved to sorbent at optimized flow rate.After thermal desorption of Ni-MWCNTs at 200oC, the mercury vapor flowed to quartz glass cell with argon gas and determined by cold vapor atomic absorption spectrometer technique(CV-AAS).In optimized conditions,25 mg of Ni-MWCNTs and MWCNTs with different size from 30-100nm was used.The adsorption capacity of sorbents was obtained 194 mg g-1 and 64 mg g-1,respectively.The efficient recovery was obtained at optimized conditions such as, temperature of 25-40 and flow rate of 200 mL min-1.So, Ni-MWCNTs had good potential for removal of mercury vapor from the air and can be used as a low cost and efficient sorbent in industrial workplace 09 28 2019 79 88 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i03.70 http://journal.amecj.com/index.php/AMECJ-01/article/view/70 http://journal.amecj.com/index.php/AMECJ-01/article/download/70/123 http://journal.amecj.com/index.php/AMECJ-01/article/download/70/123 http://journal.amecj.com/index.php/AMECJ-01/article/download/70/133 Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 09 25 2019 2 03 10.24200/amecj.v2.i03 http://journal.amecj.com/index.php/AMECJ-01/issue/view/9 *Ahmad Ghozatlu        In this study, the surface modification of graphene (SMG) was developed for efficient speciation and determination of chromium in water and wastewater samples. By procedure, the chromium ions were extracted from water/wastewater samples based on sulfonated and amine graphene (S-NG, N-NG) by suspension solid-phase microextraction procedure (SMSPE). Hydrophobic ionic liquid ([HMIM] [PF6]) was used for separation graphene from 10 mL of water. After shaking and centrifuging, the phase of Cr→ S-NG, Cr→N-NG was back-extracted by 0.2 mL of HNO3 (0.4 mol L-1) and finally chromium concentration determined with ET-AAS. The results showed the sulfonated and amine graphene can successfully extract Cr(III) and  Cr(VI) from water and wastewater samples at pH=3.5-5.5 and pH<3, respectively. Also, the most Cr(VI) extracted by N-graphene at pH=2(NH3+→Cr2O7─). Under the optimal conditions, the linear range, LOD, and preconcentration factor were obtained 0.02–2.4 µg L−1, 5.0 ng L−1 and 20.2, respectively for Cr(III, VI) (%RSD<5%).  09 26 2019 51 66 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i03.67 http://journal.amecj.com/index.php/AMECJ-01/article/view/67 http://journal.amecj.com/index.php/AMECJ-01/article/download/67/121 http://journal.amecj.com/index.php/AMECJ-01/article/download/67/121 http://journal.amecj.com/index.php/AMECJ-01/article/download/67/131 Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 09 25 2019 2 03 10.24200/amecj.v2.i03 http://journal.amecj.com/index.php/AMECJ-01/issue/view/9 Isiuku Beniah Obinna *Enyoh Christian Ebere Heavy metals and organic pollutants are ubiquitous environmental pollutants affecting the quality of soil, water and air. Over the past 5 decades, many strategies have been developed for the remediation of polluted water. Strategies involving aquatic plant use are preferable to conventional methods. In this study, an attempt was made to provide a brief review on recent progresses in research and practical applications of phytoremediation for water resources with the following objectives: (1) to discuss the toxicity of toxic chemicals pollution in water to plant, animals and human health (2) to summarise the physicochemical factors affecting  removal of toxic chemicals such as heavy metals and organic contaminants in aqueous solutions by aquatic plants; (3) to summarise and compare the removal rates of heavy metals and organic contaminants in aqueous solutions by diverse aquatic plants; and (4) to summaries chemometric models for testing aquatic plant performance. 09 24 2019 5 38 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i03.66 http://journal.amecj.com/index.php/AMECJ-01/article/view/66 http://journal.amecj.com/index.php/AMECJ-01/article/download/66/118 http://journal.amecj.com/index.php/AMECJ-01/article/download/66/118 http://journal.amecj.com/index.php/AMECJ-01/article/download/66/128 Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 09 25 2019 2 03 10.24200/amecj.v2.i03 http://journal.amecj.com/index.php/AMECJ-01/issue/view/9 Verla Andrew Wirnkor *Enyoh Christian Ebere Verla Evelyn Ngozi The microplastics in the environment is a novel problem to scientists, public media, governmental and non-governmental organizations. The major problem is from the difficultness of removing them from the ecosystem. Elsewhere studies are being conducted while in Nigeria studies are relatively lacking. Production (10.3 %) and consumption (6.5 %) of plastics are on the increase annually, thereby, causing an increase in the amount of plastic waste generated annually. Finally, from such studies, data generated will provide insight and understanding into the extent of microplastic pollution in Nigeria. Furthermore, the data will be important not only for both remediation and minimization of effects but could be employed in averting occurrence through policies such as ban on some types of plastic uses in Nigeria. In this study, four manually generally microplastic types (PVC, acrylics, polyesters, silicones) were evaluated for heavy metals (Pb, Cd, Hg, and As) adsorption at optimized pH by ETAAS. 09 23 2019 89 96 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i03.69 http://journal.amecj.com/index.php/AMECJ-01/article/view/69 http://journal.amecj.com/index.php/AMECJ-01/article/download/69/124 http://journal.amecj.com/index.php/AMECJ-01/article/download/69/124 http://journal.amecj.com/index.php/AMECJ-01/article/download/69/134 Analytical Methods in Environmental Chemistry Journal AMECJournal 2645-5382 2645-5552 09 25 2019 2 03 10.24200/amecj.v2.i03 http://journal.amecj.com/index.php/AMECJ-01/issue/view/9 Maling Gou *Baharak Bahrami Yarahmadi An efficient method based on thiol functionalized mesoporous silica nanoparticles (HS-MSNPs) was used for extraction of lead ions (PbII) from urine and water samples by packed column micro solid phase extraction (PC-MSPE). By procedure, 15 mg of HS-MSNPs packed in syringe cartridges (SC, 5 mL) with cellulose membrane and pH adjusting at 5.5-6.5.  Then, the lead of urine and water sample was efficiently extracted on HS-MSNPs after pushing the plunger of a syringe. Finally, the Pb (II) was back-extracted with inorganic acid solution and the remained solution determined by electrothermal atomic absorption spectrometry (ET-AAS). By optimization conditions, the enrichment factor, LOD, linear range and RSD% was obtained 24.8, 0.04 μg L-1, 0.12-5.5 μg L-1 and less than 5%, respectively for 5 mL of urine samples. The validation was confirmed by spiking of real samples and using certified reference material (CRM, NIST) in water and urine sample. 09 20 2019 39 50 http://creativecommons.org/licenses/by/4.0 10.24200/amecj.v2.i03.72 http://journal.amecj.com/index.php/AMECJ-01/article/view/72 http://journal.amecj.com/index.php/AMECJ-01/article/download/72/120 http://journal.amecj.com/index.php/AMECJ-01/article/download/72/120 http://journal.amecj.com/index.php/AMECJ-01/article/download/72/129