搜索结果: 1-15 共查到“理学 fluoride”相关记录19条 . 查询时间(0.281 秒)
Determination of boron and fluoride sources in groundwater: Batch dissolution of carbonate rocks in water
boron fluoride carbonate rock water-rock interaction batch dissolution
2017/4/11
High natural fluoride (up to 6.1 mg/l) and boron (up to 2.1 mg/l) concentrations in groundwater are recorded in western
Estonia, where a carbonaceous Silurian–Ordovician aquifer system is the main so...
Geologic structure and geochemical characteristics of sediments of fluoride and arsenic contaminated groundwater aquifer in Kalalanwala and its vicinity, Punjab, Pakistan
anthropogenic contamination groundwater aquifer aeolian sediment buried valley chlorite
2017/8/9
To constrain the origin of fluoride and arsenic contamination of groundwater in Kalalanwala, Punjab, Pakistan, the geochemical and mineralogical characteristics of the aquifer were studied. Subsurface...
Fluoride in coral aragonite related to seawater carbonate
coral, fluoride carbonate seawater temperature aragonite
2017/8/9
In order to elucidate the controlling factors for fluoride incorporation into coral aragonite (CaCO3), we determined the ratio of fluorine to calcium (F/Ca) in coral skeletons collected from Pohnpei (...
Determination of Total Fluoride in Boron-containing Solutions
Fluoride Boron-containing Solutions
2010/9/20
We describe a pretreatment method before determining the total fluoride in solutions containing tetrafluoroborate ion (BF4−) with ion-selective electrodes (ISEs). BF4− was quantitatively ...
Absorbing Hydrogen Fluoride Gas to Enhance Crystal Growth（图）
Hydrogen Fluoride Gas Enhance Crystal Growth superconductors optical devices microelectronics
2009/12/15
Two scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have developed a method to control the buildup of hydrogen fluoride gas during the growth of precision crystals n...
An approach to retrieve information on the carbonyl fluoride (COF2) vertical distributions above Jungfraujoch by FTIR multi-spectrum multi-window fitting
carbonyl fluoride (COF2) vertical distributions Jungfraujoch FTIR multi-spectrum multi-window fitting
2009/12/3
We present an original multi-spectrum fitting procedure to retrieve volume mixing ratio (VMR) profiles of carbonyl fluoride (COF2) from ground-based high resolution Fourier transform infrared (FTIR) s...
VARIATION OF FLUORIDE IN GROUNDWATERS OF CRYSTALLINE TERRAIN
VARIATION OF FLUORIDE CRYSTALLINE TERRAIN GROUNDWATERS
2009/10/19
Groundwater in shallow aquifers that supply water to dugwells in crystalline terrain of the Visakhapatnam region, Andhra Pradesh, have higher concentrations of flouride (F) than those of borewells fro...
GROUNDWATER CONTAMINATED WITH ARSENIC AND FLUORIDE IN THE ARGENTINE PAMPEAN PLAIN
GROUNDWATER CONTAMINATED ARGENTINE PAMPEAN PLAIN loessic sediments
2009/10/13
The phreatic aquifer of the Los Jagüeles basin is made up principally of Quaternary loessic sediments. It has sodium bicarbonate (high and middle basin) and sodium sulfate (lower basin) water, with fl...
Determination of bromide, chloride, fluoride, nitrate and sulphate by ion chromatography: comparisons of methodologies for rainfall, cloud water and river waters at the Plynlimon catchments of mid-Wales
bromide chloride fluoride nitrate sulphate Plynlimon catchments
2009/5/6
The results of determination of bromide, chloride, fluoride, nitrate and sulphate using ion chromatography (IC) are compared with those obtained by colorimetric and inductively coupled plasma optical ...
RETENTION OF FLUORIDE FROM INDUSTRIAL ACIDIC WASTEWATER AND NaF SOLUTION BY THREE TUNISIAN CLAYEY SOILS
Acidic wastewater Clayey soil Fluoride removal Freundlich isotherm model Industrial wastewater Langmuir isotherm models Tunisian clayey soils
2011/11/11
Clayey soil samples, Sebkhat El Malah-El Mkhacherma (MK), Jebel Haidoudi (H), and Zemlet El Beidha (ZB), from three regions in Southeast Tunisia were evaluated for their effectiveness to remove fluori...
The atmospheric chemistry of sulphuryl fluoride, SO2F2
atmospheric chemistry sulphuryl fluoride SO2F2
2008/11/3
The atmospheric chemistry of sulphuryl fluoride, SO2F2, was investigated in a series of laboratory studies. A competitive rate method, using pulsed laser photolysis (PLP) to generate O(1D) coupled to ...
INTERACTION OF AQUEOUS ACIDIC-FLUORIDE WASTE WITH NATURAL TUNISIAN SOIL
Acidic-fluoride Waste Storage Clay DTA-TG FTIR Permeability
2011/11/7
Clayey soils are essential materials used to reduce hydraulic conductivity and pollutant migration, common at sites of waste disposal. This study investigates the possible use of a Tunisian soil as a ...
期刊信息
篇名
The Influence of oxide on the Electrodeposition of Niolium form Alkali Fluoride Melts
语种
英文
撰写或编译
作者
王新东
第一作者单位
刊物名称
J.Electrochem .Soc
页面
1994,Vol.141,No.5
出版日期
1994年
月
日
文章标识(ISSN)
相关项目
Nb-N...
Optical Fluoride Sensing with a Bay Region Functionalized Perylenediimide Dye
Chemosensor fluorogenic sensors chromogenic sensors fluoride sensing supramolecular chemistry
2010/4/19
A perylenedimiide (PDI) derivative functionalized at the perylene core (bay region) to carry phenyl boronic acid groups was shown to interact with fluoride with changes in the emission and absorption ...
Effects of Fluoride Levels on Lipid Peroxidation and Antioxidant Systems of Growing/Finishing Pigs
Growing/Finishing Pigs Fluoride Growth Performance Lipid Peroxidation Antioxidant Systems
2016/4/19
Malondialdehyde (MDA) and total antioxidant capacity (T-AOC) levels, superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), glutathione transferase (GST) and xanthine oxidase (XO...