Journal of environmental analytical chemistry最新文献_第8页

A Novel Multi-Step Purification Method for Production of Profitable Food Grade Phosphoric Acid and Ammonium Based Fertilizers from a Sedimentary Ore 一种从沉积矿石中提纯生产高利润食品级磷酸和铵基肥料的新方法

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.37421/2380-2391.2020.7.273

M. Haghani, Mahdi Kharghani, Shahram Daneshpazhuh

引用次数: 3

Solvent Selection for Environmental Organic Chemistry Experiments—Basic Concepts 环境有机化学实验中溶剂的选择——基本概念

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.5985/jec.30.145

S. Endo

引用次数: 0

Editorial Note on Environmental Science 环境科学社论

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.37421/2380-2391.2020.7.269

C. Mounica

引用次数: 0

Potentially Toxic Elements (PTEs) in Surface Soils of Gemstones and Lead Mining Communities: Differential Mineral Phases and Exposure Risks 宝石和铅开采社区表层土壤中的潜在有毒元素:不同矿物阶段和暴露风险

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.37421/2380-2391.2020.7.278

Boisa Ndokiari, C. Grace, Okpulor Happiness

{"title":"Potentially Toxic Elements (PTEs) in Surface Soils of Gemstones and Lead Mining Communities: Differential Mineral Phases and Exposure Risks","authors":"Boisa Ndokiari, C. Grace, Okpulor Happiness","doi":"10.37421/2380-2391.2020.7.278","DOIUrl":"https://doi.org/10.37421/2380-2391.2020.7.278","url":null,"abstract":"Proper human health risk assessments are rarely conducted for mining communities, consequently when there is need for remediation to be conducted and compensation to be paid to impacted population they are typically done, assuming equal exposure risks from varying mining activities. This study was conducted to compare the distribution of potentially toxic elements in surfaces soils of gemstone and lead mining towns in Nigeria, and their anticipated exposure risks. To achieve this thirty-two surface soil samples were collected from Eggon, a gemstone mining town in Nasarawa State and Enyigba, a lead mining town in Ebonyi State. The samples were air dried, disaggregated and sieved through a 2000 μm mesh with the <2000 fraction retained for aqua regia digestion. Potentially toxic elements bound in the samples were quantified with Agilent Technologies 4210 (MP-AES). Mineral phases were identified and quantified using using a inXitu’s portable transmission XRD/XRF instrument (Terra) with a miniature X-ray tube and a CCD detector for collection both XRD signatures. The PTEs, As, Cd, Mn, Pb and Zn were higher in surface soils of lead mining town. At the gemstone mining town most the PTEs indicated similar concentrations at both mine site and residential areas, while at the lead mining town of the PTEs indicated higher concentrations at mine sites and mine road. At the lead mining town the estimated daily exposure doses for Pb were above threshold values irrespective of the exposure scenario. Mineralogy data indicated most of the PTEs in mineralized phases.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"1 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74464208","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

Effect of Pore Forming Agent on the Porous Structure of Polydimethylsiloxine Membranes and Solvent Recovery by Low-pressure Membrane Filtration from Ink Solutions 成孔剂对聚二甲基硅氧烷膜孔结构的影响及低压滤膜对油墨溶液溶剂回收的影响

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.5985/jec.30.100

R. Kiyono, Toru Matsuki, Noriaki Seki, Hiromasa Nishikiori

{"title":"Effect of Pore Forming Agent on the Porous Structure of Polydimethylsiloxine Membranes and Solvent Recovery by Low-pressure Membrane Filtration from Ink Solutions","authors":"R. Kiyono, Toru Matsuki, Noriaki Seki, Hiromasa Nishikiori","doi":"10.5985/jec.30.100","DOIUrl":"https://doi.org/10.5985/jec.30.100","url":null,"abstract":"Porous polydimethylsiloxine (PDMS) membranes were prepared using polyethylene glycol (PEG) or propylene glycol (PG) as pore forming agent (PFA). After the PDMS/PFA membranes were prepared, they were immersed in warm water to remove PFA from the membranes to prepare the PDMS porous membranes. Symmetric porous PDMS membrane was obtained when PEG was used as PFA. However, asymmetric porous membrane having a dense PDMS layer on one surface was prepared when PG was used as PFA. The porosity of the membranes increased with PFA content. The solvent permeation across the membranes was measured by low-pressure (0.2 MPa) driven filtration. Three kinds of ink solutions (green, blue and white) containing fine solid particle less than 360 μm and organic solvent were used as feed solutions. The permeation increased with increasing the PFA content. The solid particle weight concentrations in ink solutions were about 10 wt% , however, almost pure solvent was obtained for all the ink solutions by the filtration when the membranes prepared using PG as PFA: the solid particle weight concentration was less than 1 wt% in permeate.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76078119","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

The Temporal Trend of Organotin Contaminations in the Port of Osaka and Tanabe Bay 大阪港和田边湾有机锡污染的时间趋势

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.5985/jec.30.151

H. Harino

引用次数: 0

Detection of Odor Compounds in Deep-sea Sediment Cores from Sagami Bay and Izu-Bonin Trench using Gas Chromatography-olfactometry (GC-O) 相模湾和伊豆-波宁海沟深海沉积物岩心中气味成分的气相色谱-气味测定

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.5985/jec.30.94

Misato Matsumoto, H. Nomaki, S. Kawagucci, Y. Koga, Taiki Higuchi, Hideaki Matsumoto, Kou Nishimuta, N. Ryuda, D. Ueno

引用次数: 0

The Accumulation of Uranium in Agricultural Soils in Kagoshima Prefecture, Japan 日本鹿儿岛县农业土壤中铀的积累

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.5985/jec.30.133

I. Akagi, N. Chishaki

{"title":"The Accumulation of Uranium in Agricultural Soils in Kagoshima Prefecture, Japan","authors":"I. Akagi, N. Chishaki","doi":"10.5985/jec.30.133","DOIUrl":"https://doi.org/10.5985/jec.30.133","url":null,"abstract":"The uranium (U) concentrations of the agricultural and non-agricultural soils in four areas (Isa, Nagashima, Nansatsu, and Osumi) in Kagoshima Prefecture were determined. The U concentrations of the agricultural soils were higher than those of the non-agricultural soils in all areas. The U concentrations were positively correlated with the P concentrations in the soils, which suggested a link between long-term phosphate fertilizer application and U accumulation in the soils. The amounts of U enriched in the agricultural soil surfaces ( 0 - 15 cm depth) in the Isa, Nagashima, Nansatsu, and Osumi areas, as calculated from the comparison with the non-agricultural soils, were estimated to be 47 - 318 , 25 - 343 , 61 - 226 , and 47 - 185 mg / m 2 , respectively. This demonstrated that the accumulation of U occurred in the agricultural soils in these areas. The commercially available superphosphate, magnesium multi-phosphate, fused magnesium phosphate, animal waste composts, and sewage sludge compost in these areas contained 51 . 6 , 22 . 2 , 10 . 6 , 0 . 88 - 1 . 07 , and 1 . 56 μ g / g of U, respectively, which showed that these fertilizer materials could become sources of U in agricultural soils. Accord-ing to the calculation with reference to the amount of fertilizer applied, it was estimated that the amounts of U added from fertilizers were 2 . 7 - 3 . 0 mg / m 2 in rice paddy fields and 8 . 6 - 9 . 2 mg / m 2 in Chinese cabbage fields per cropping system. These results indicated that the amounts of U input derived from fertilizers per cropping system differed greatly depend-ing on the cultivated crop.","PeriodicalId":15764,"journal":{"name":"Journal of environmental analytical chemistry","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89836609","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

Editorial Note on Issue Release of the Journal 《华尔街日报》刊发的社论注释

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.37421/2380-2391.2020.7.270

Shihori Tanabe

引用次数: 0

Calcined Scallop Shells for Phosphate Adsorption in Aqueous Solution 煅烧扇贝壳在水溶液中吸附磷酸盐的研究

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI: 10.5985/jec.30.119

Aqidatul Izza, T. Kojima, Y. Amano, M. Machida

引用次数: 0