搜索结果: 1-13 共查到“理学 Oxalate”相关记录13条 . 查询时间(0.046 秒)
Novel method for low level Sr-90 activity detection in seawater by combining oxalate precipitation and chelating resin extraction
strontium-90 nuclear power plant seawater monitoring preconcentration oxalate precipitation
2017/4/10
Sr released into seawater from nuclear bomb testing and nuclear facility accident sites requires long-term monitoring.
However, measuring 90Sr in seawater is still difficult and time-consuming. This ...
Atmospheric dissolved iron deposition to the global oceans: effects of oxalate-promoted Fe dissolution, photochemical redox cycling, and dust mineralogy
global oceans oxalate-promoted Fe dissolution
2014/12/12
Mineral dust deposition is suggested to be a significant atmospheric supply pathway of bioavailable iron
(Fe) to Fe-depleted surface oceans.
High variability of the heterogeneous ice nucleation potential of oxalic acid dihydrate and sodium oxalate
the heterogeneous ice nucleation oxalic acid dihydrate sodium oxalate
2010/8/25
The heterogeneous ice nucleation potential of airborne oxalic acid dihydrate and sodium oxalate particles in the deposition and condensation mode has been investigated by controlled expansion cooling ...
Convenient synthesis of monomeric steroids from steroidal oxalate dimers using flash vacuum pyrolysis (FVP)
Steroid oxalate dimers steroidal alkene diene triene
2010/10/18
Flash vacuum pyrolysis (FVP) or thermolysis (FVT), an environmentally friendly method for studying organic reaction mechanisms as well as synthesis, was applied to a series of oxalate dimers (1, 3, 5,...
缺陷LB膜诱导特异形貌草酸钙堆积图形（Special Patterns of Calcium Oxalate Monohydrate Crystals Induced by Defective Langmuir-Blodgett Film）
缺陷 LB膜 草酸钙 DPPC AFM
2010/8/18
A special pattern of calcium oxalate monohydrate (COM) crystals was induced by DPPC Langmuir-Blodgett films with defects. The pattern was that a large hexagonal COM crystal located in the middle of a ...
二水草酸钙的热力学转化及海藻多糖的稳定作用（Thermodynamical Transformation of Calcium Oxalate Dihydrate and Its Stabilization by Algal Sulfated Polysaccharide）
一水草酸钙 二水草酸钙 硫酸多糖 晶种 结晶
2010/8/24
草酸钙结石的形成与尿液中草酸钙的存在形式密切相关，一水草酸钙(COM)促进尿石症形成，而二水草酸钙(COD)易随尿液排出体外。本文采用体外模拟方法，比较研究了COD晶体在水溶液、正常人尿液和结石患者尿液3个不同体系中的稳定性及海藻龙须菜多糖(SPS)对COD的稳定作用。在水溶液和患者尿液中，不但COD转化率高，而且得到的转化产物COM晶体聚集程度大；而在正常人尿液中，COD转化率低，转化产物聚集程...
Germin-Like Oxalate Oxidase Activity Increase in Auxin-Treated Wheat Coleoptiles
Auxin Coleoptile elongation Germin-like oxalate oxidase
2010/3/23
Mahmut ÇALIŞKAN Mustafa Kemal University, Biology Department,, 31040-Hatay - TURKEY Andrew C. CUMING University of Leeds Biology Department, Leeds LS2 9JT ENGLAND Received: 06.09.1999 Acce...
Some Ultrastructural Observations on Calcium Oxalate Raphide Crystal Idioblasts and Meristematic Cells of the Adventive Root Tips of Sternbergia lutea (L.) Ker-Gawl. ex Sprengel (Amaryllidaceae)
Sternbergia lutea adventive root tip meristematic cell Ca-oxalate raphide crystal idioblast degeneration ultrastructure
2010/3/23
The adventive root tip cells of a bulbous plant, Sternbergia lutea (L.) Ker-Gawl. ex Sprengel (Amaryllidaceae), were examined by LM (light microscope) and EM (electron microscope). At the meristematic...
Acidified Oxalate and Dithionite Solubility and Color of Synthetic, Partially Oxidized Al-Magnetites and their Thermal Oxidation Products
Aluminum substitution Electron microscopy Hematite Maghemite Magnetite Oxidation Solubility
2011/12/1
Abstract: Submicron-sized (∼3–60 nm) powders of Al-substituted magnetite were synthesized in the laboratory by precipitation methods by mixing appropriate molar volumes FeCl2, FeCl3 and AlCl3 so...
Experimental Determination of the Rates of Precipitation of Authigenic Illite and Kaolinite in the Presence of Aqueous Oxalate and Comparison to the K/Ar Ages of Authigenic Illite in Reservoir Sandstones
Illite Kaolinite Precipitation rate Oxalate K/Ar Sandstones North Sea
2011/12/29
The importance of precipitation rate as an effective control on illite and kaolanite formation during diagenesis has been examined by measuring precipitation rates, from Al fluid concentration, in a D...
Characteristics of Products from the Acid Ammonium Oxalate Treatment of Manganese Minerals
Acid ammonium oxalate Dissolution Grinding Manganese oxides Surface area X-ray powder diffraction
2011/12/31
To determine the parameters that control the attack of Mn minerals by acid ammonium oxalate in darkness (AAOD), rhodochrosite, pyrolusite, manganosite, hausmannite, and bixbyite were shaken with AAOD ...
Photochemical Dissolution of Goethite in Acid/Oxalate Solution
Goethite Iron Lepidocrocite Photochemical dissolution Oxalate
2012/1/11
During photochemical dissolution of goethite in acid/oxalate solution, Fe3+, Fe2+, and CO2 were released and towards the end of the reaction ferrous oxalate precipitated. The dissolution process invol...
Effect of Photolytic Oxalate Treatment on Soil Hydroxy-Interlayered Vermiculites
Hydroxy-interlayer Iron oxide Noncrystalline Oxalate extraction Photolytic reaction Soil Vermiculite
2012/2/8
The effects of Na-citrate-dithionite (NaCD), ammonium oxalate in the dark (NH4Ox-D), and photolytic reaction under ultraviolet radiation (NH4Ox-P) on the mineralogy of <2-µm fractions of selecte...