Analytical Methods in Environmental Chemistry Journal最新文献_第7页

Removal of benzene vapor from the air based on novel tantalum metal-organic framework (Ta-MOF) adsorbent by gas flow solid-phase interaction before determination by gas chromatography 新型金属钽-有机骨架(Ta-MOF)吸附剂在气相色谱测定前的气固相互作用去除空气中的苯蒸气

Analytical Methods in Environmental Chemistry Journal Pub Date : 2021-12-29 DOI: 10.24200/amecj.v4.i04.155

A. Faghihi-Zarandi, Mohammad Reza Rezaei Kahkha, Mohammad Bagher Aghebatbekheir, Nasser Hasheminejad

{"title":"Removal of benzene vapor from the air based on novel tantalum metal-organic framework (Ta-MOF) adsorbent by gas flow solid-phase interaction before determination by gas chromatography","authors":"A. Faghihi-Zarandi, Mohammad Reza Rezaei Kahkha, Mohammad Bagher Aghebatbekheir, Nasser Hasheminejad","doi":"10.24200/amecj.v4.i04.155","DOIUrl":"https://doi.org/10.24200/amecj.v4.i04.155","url":null,"abstract":"‌Benzene has a carcinogenic effect on the human body and adsorption from the air is the best way to control it. By this research, benzene vapor was removed from the air based on a tantalum metal-organic framework (Ta-MOF) by gas flow solid-phase interaction (GF-SPI). Benzene adsorption with Ta-MOF was studied in the static and dynamic systems at room temperature. The benzene concentration was analyzed by gas chromatography equipped with an FID detector (GC-FID). The factors affecting benzene removal efficiency like initial concentration of benzene, amount of adsorbent, exposure time, flow rate, and temperature were studied and optimized. The results showed us, the adsorption capacities range of Ta-MOF for benzene in the static and dynamic system were obtained between 90-160 mg g-1 and 65-135 mg g-1, respectively. Also, the high removal efficiency was achieved by more than 95% at 45°C, 67.5 mg L-1 benzene concentration, 0.5 g of Ta-MOF, and the flow rate of 250 mL min-1 for a dynamic system. By dynamic system, the benzene is generated in the chamber, stored in a bag, and then moved on the surface of Ta-MOF. The GF-SPI method was validated by GC-MS and spiking real samples.","PeriodicalId":7797,"journal":{"name":"Analytical Methods in Environmental Chemistry Journal","volume":"35 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83828142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photocatalytic degradation of Perchloroethylene by a lab-scale continuous-flow annular photoreactor packed with glass beads carbon-doped TiO2 nanoparticles 含碳掺杂TiO2纳米颗粒的玻璃微珠连续流动环形光反应器在实验室规模下光催化降解过氯乙烯

Analytical Methods in Environmental Chemistry Journal Pub Date : 2021-12-28 DOI: 10.24200/amecj.v4.i04.159

H. Kazemi, M. Rabbani, Haniye Kashafroodi, Hossin Kazemi

{"title":"Photocatalytic degradation of Perchloroethylene by a lab-scale continuous-flow annular photoreactor packed with glass beads carbon-doped TiO2 nanoparticles","authors":"H. Kazemi, M. Rabbani, Haniye Kashafroodi, Hossin Kazemi","doi":"10.24200/amecj.v4.i04.159","DOIUrl":"https://doi.org/10.24200/amecj.v4.i04.159","url":null,"abstract":"In this study, the amount of photocatalytic degradation of perchloroethylene in the gas phase was investigated by a fixed bed continuous-flow tubular photoreactor. The photoreactor consists of a cylindrical glass tube, was filled with glass beads coated with nanoparticles of TiO2, TiO2 doped carbon (TiO2-C). These nanoparticles were synthesized by the sol-gel method and deposited on glass beads using the sol-gel dip technique. X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transforms infrared spectroscopy (FT-IR), and diffuse reflectance spectroscopy (DRS) were used for the characterization of synthesized materials. The effect of different parameters such as relative humidity, residence time, PCE concentration on the photocatalytic degradation process was investigated by ultraviolet irradiation to achieve the highest possible degradation efficiency. The PCE degradation and byproduct species were monitored and identified with a gas chromatography-mass spectrometer device (GC-MS). Under the optimum experimental conditions, the photocatalytic activities of TiO2, TiO2-C were investigated and compared together. The results showed that photocatalytic activity of TiO2 for degradation of PCE was extremely increased when doped with carbon. For TiO2-C catalyst, under UV irradiation (3000 ppm initial PCE concentration, 30% humidity and 1 min residence time) approximately 96% of the initial PCE was degraded.","PeriodicalId":7797,"journal":{"name":"Analytical Methods in Environmental Chemistry Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83124389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Determination of manganese in rat blood samples based on ionic liquid-liquid extraction and chelation therapy for evaluation of manganese toxicity in rats 离子液液萃取及螯合法测定大鼠血液中锰的毒性

Analytical Methods in Environmental Chemistry Journal Pub Date : 2021-12-28 DOI: 10.24200/amecj.v4.i04.160

S. J. Fatemi, Tayyebeh Zandevakili, Fatemeh Khajoee nejad, Marziyeh Iranmanesh, Mohammad Faghihi Zarandi

{"title":"Determination of manganese in rat blood samples based on ionic liquid-liquid extraction and chelation therapy for evaluation of manganese toxicity in rats","authors":"S. J. Fatemi, Tayyebeh Zandevakili, Fatemeh Khajoee nejad, Marziyeh Iranmanesh, Mohammad Faghihi Zarandi","doi":"10.24200/amecj.v4.i04.160","DOIUrl":"https://doi.org/10.24200/amecj.v4.i04.160","url":null,"abstract":"In this study, manganese was extracted in the blood of rats based on desferrioxamine (DFO), deferasirox (DFX) and deferiprone (DFP) as chelators (ligands) by ionic liquid-liquid phase extraction method (ILLEM) before being determined by F-AAS. Also, the toxic effects of manganese on blood serum and hematology parameters such as RBC, WBC, HGB, PLT and HCT were investigated. Male Wistar rats were randomly divided into control and toxic groups. Manganese chloride was administrated orally in low and high doses. Orally (deferasirox and deferiprone) or intraperitoneally (desferrioxamine) for 2 weeks. Results showed that exposure to manganese significantly increased both counts of hematology parameters and concentration of this metal ion in serum compared to the control group. First, manganese was chelated with ligands and then the hydrophobic ionic liquid (IL, [HMIM][PF6]) was added to rat blood samples, after shaking and centrifuging, the upper liquid phase was separated by auto-sampler and mixture of IL/ligand in the bottom of conical tube back-extracted and determined with F-AAS. The linear range, LOD and enrichment factor for 10 mL of blood rats were obtained 25- 180 μg L-1, 6.5 μg L-1 and 19.92, respectively. By chelation therapy manganese was removed from serum and hematology parameters were normal level.","PeriodicalId":7797,"journal":{"name":"Analytical Methods in Environmental Chemistry Journal","volume":"103 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76066672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Review: Effects of air, water and land dumpsite on human health and analytical methods for determination of pollutants 空气、水和土地垃圾场对人体健康的影响及污染物测定的分析方法综述

Analytical Methods in Environmental Chemistry Journal Pub Date : 2021-09-30 DOI: 10.24200/amecj.v4.i03.147

Ihenetu chukwuemeka Stanley, Victor Obinna Njokua Njoku, Chinweuba J. Arinze, I. Chizoruo, Ekeoma Nmesoma Blessing

{"title":"A Review: Effects of air, water and land dumpsite on human health and analytical methods for determination of pollutants","authors":"Ihenetu chukwuemeka Stanley, Victor Obinna Njokua Njoku, Chinweuba J. Arinze, I. Chizoruo, Ekeoma Nmesoma Blessing","doi":"10.24200/amecj.v4.i03.147","DOIUrl":"https://doi.org/10.24200/amecj.v4.i03.147","url":null,"abstract":"Environment pollutants are found here and there in developing countries and these contaminations affect the environment adversely. A few remediation of pollution which includes incineration which is the waste treatment process that involves the combustion of organic substances contained in waste material, the waste handling practices, the recycling resource recovery, the avoidance and reduction methods, the adsorption based on nanotechnology and the bioremediation technology which appears as a cost-effective and environmental friendly approach for cleanup. Recently researches shows that various chemicals (VOCs, BTEX, heavy metals) that might be delivered into the air or water can cause unfriendly health effects which was analyzed based on sample treatments (solid phase extraction: SPE, the liquid-liquid microextraction: LLME, the magnetic solid phase extraction: MSPE) and instruments such as ET-AAS, F-AAS and GC-FID methods. The related weight of disease can be substantial, and interest in research on health effects and intervention in explicit populations and openness circumstances is significant for the development of control systems. Pollution control and determination is thusly a significant segment of disease control, and health experts and analytical chemistry specialists need to foster associations with different areas to recognize and carry out need interventions.","PeriodicalId":7797,"journal":{"name":"Analytical Methods in Environmental Chemistry Journal","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76733728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Dispersive solid phase extraction using graphitic carbon nitride microparticles for the determination of trace amounts of lead in water samples 用石墨氮化碳微粒分散固相萃取法测定水样中微量铅

Analytical Methods in Environmental Chemistry Journal Pub Date : 2020-12-30 DOI: 10.24200/AMECJ.V3.I04.118

E. Zolfonoun

引用次数: 2

Determination and investigation of heavy metal concentrations in sediments of the Persian Gulf coasts and evaluation of their potential environmental risk 波斯湾沿岸沉积物中重金属浓度的测定和调查及其潜在环境风险评价

Analytical Methods in Environmental Chemistry Journal Pub Date : 2020-12-30 DOI: 10.24200/AMECJ.V3.I04.122

Hoda Allami, A. Afzali, R. Mirzaei

引用次数: 1

Cadmium separation in human biological samples based on captopril-ionic liquid paste on graphite rod before determination by electrothermal atomic absorption spectrometry 电热原子吸收光谱法测定前用石墨棒卡托普利离子液体膏体分离人体生物样品中的镉

Analytical Methods in Environmental Chemistry Journal Pub Date : 2019-12-25 DOI: 10.24200/amecj.v2.i04.84

K. Azami, M. Aliomrani, M. Mobarake

引用次数: 3

A novel sorbent based on metal–organic framework for mercury separation from human serum samples by ultrasound assisted- ionic liquid-solid phase microextraction 一种新型金属-有机骨架吸附剂用于超声辅助离子液-固相微萃取分离人血清样品中的汞

Analytical Methods in Environmental Chemistry Journal Pub Date : 2019-11-13 DOI: 10.24200/amecj.v2.i03.68

N. Kazemi

引用次数: 17

A review: Analytical methods for heavy metals determination in environment and human samples 环境和人体样品中重金属的分析方法综述

Analytical Methods in Environmental Chemistry Journal Pub Date : 2019-09-30 DOI: 10.24200/amecj.v2.i03.73

M. Arjomandi, H. Shirkhanloo

引用次数: 36

Air pollution Analysis: Nickel paste on Multi-walled carbon nanotubes as novel adsorbent for the mercury removal from air 空气污染分析:多壁碳纳米管镍浆作为新型空气中汞的吸附剂

Analytical Methods in Environmental Chemistry Journal Pub Date : 2019-09-28 DOI: 10.24200/amecj.v2.i03.70

A. Ebrahimi, Ahmad Salarifar

引用次数: 16