1) coprecipitation
['kəupri,sipi'teiʃən]
共沉淀
1.
Flame Atomic Absorption Spectrometric Determination of Copper and Lead in Beer after Preconcentration Using a Rapid Coprecipitation Technique with 8-Oxyquinoline;
8-羟基喹啉快速共沉淀分离富集原子吸收光谱法测定啤酒中的Cu和Pb
2.
Further Improvement of Flame Atomic Absorption Spectrometric Determination for Cu,Pb and Cd After Preconcentration Using a Rapid Coprecipitation Technique;
吡咯烷二硫代氨基甲酸铵-Ni(Ⅱ)快速共沉淀分离富集和原子吸收光谱法测定痕量铜、铅和镉
3.
Removal of lead and arsenic from the alkaline etching liquid by coprecipitation with calcium carbonate and ferric hydroxide;
碳酸钙和氢氧化铁共沉淀脱除碱性蚀刻液中铅砷
2) Co-precipitation
共沉淀
1.
Preparation of α-Tricalcium Phosphate by Co-precipitation;
共沉淀法制备α-磷酸三钙
2.
Preparation of Zr/Si-Al composite oxide support via co-precipitation;
共沉淀法制备Zr/Si-Al复合氧化物载体的研究
3.
Factors affecting co-precipitation in preparation of CeNi_5 hydrogen storage alloys;
储氢合金CeNi_5制备中共沉淀的影响因素研究
3) co-precipitation method
共沉淀
1.
Synthesis of negative thermal expansion material ZrW_2O_8 through co-precipitation method;
共沉淀法制备负膨胀系数材料ZrW_2O_8
2.
Preparation of the red phosphor CaCO_3:Eu~(3+) by lower temperature co-precipitation method
低温共沉淀法合成红色荧光粉CaCO_3:Eu~(3+)
3.
Yb3+∶Y2O3 nanocrystalline powder was prepared by co-precipitation method using a matrix material of Y2O3 doped with different concentrations of Yb3+, and the Yb3+∶Y2O3 transparent ceramics was fabricated by vacuum sintering at 1 700 ℃, 1×10-3 Pa for 5 h.
以Y2O3为基质材料,掺杂不同含量的Yb3+,采用共沉淀法制备出性能良好的Yb3+∶Y2O3纳米粉,将粉体在1700℃和真空度为1×10-3Pa下烧结5h得到Yb3+∶Y2O3透明陶瓷。
4) Co precipitation
共沉淀
1.
SiC/(Al(OH) 3+Y(OH) 3) powder mixtures were prepared by co precipitation method.
利用化学共沉淀方法制备了SiC/(Al(OH) 3 +Y(OH) 3 )陶瓷复合粉体。
2.
SrAl 2O 4∶Eu 2+ ,Dy 3+ luminescent powder is synthesized by co precipitation.
采用共沉淀法合成了 Sr Al2 O4∶Eu2 +,Dy3+发光粉。
5) co-deposition
共沉淀
1.
Preparation of nano-sized Ce_(0.8)Gd)_(0.2)O_(1.9) powders by atomization co-deposition method;
雾化共沉淀法制备Ce_(0.8)Gd_(0.2)O_(1.9)纳米粉体
2.
The co-deposition with Tween-80 was used to prepare the nanometer-sized powder ZrO2 stablized by Y2O3.
用 Tween-80保护共沉淀法制备了 ZrO2(Y2O3)纳米粉体、用差热分析、热重分析、X射线衍谢及透射电子显微镜等技术研究了粉体的特征,结果表明:在 700℃ 煅烧0。
3.
0 mL and the co-deposition time was 30 min.
锌锭样品用盐酸溶解后,在氨性介质中加入Al3+,锡铅锑铋离子与氢氧化铝共沉淀后,用盐酸(2+98)溶解沉淀,氢化物发生-原子荧光光谱法测定锡铅锑铋。
6) coprecipitation
['kəupri,sipi'teiʃən]
共沉淀法
1.
Study on the preparation of ceramic powders of ternary pyrochlor containing bismuth by coprecipitation;
共沉淀法制备三元系铋基焦绿石型陶瓷粉体
2.
Study on coprecipitation synthesis and photocatalytic activity of SrFeO_(3-x);
共沉淀法合成铁酸锶及其光催化活性研究
3.
Kinetics of Synthetic of Cl-Type Hydrotalcitelike with Coprecipitation Reaction;
氯离子柱撑水滑石共沉淀法合成反应动力学
补充资料:共沉淀
| 共沉淀 coprecipitation 一种沉淀从溶液中析出时,引起某些可溶性物质一起沉淀的现象。其原因有:①表面吸附。由于沉淀表面的离子电荷未达到平衡,它们的残余电荷吸引了溶液中带相反电荷的离子。这种吸附是有选择性的:首先吸附晶格离子;其次,凡与晶格离子生成的盐类溶解度越小的离子,就越容易被吸附;离子的价数愈高,浓度愈大,则愈容易被吸附。升高溶液温度,减小沉淀的表面积,可减小吸附。②包藏。在沉淀过程中,如沉淀剂较浓,又加入过快,则沉淀颗粒表面吸附的杂质离子来不及被主沉淀的晶格离子取代,就被后来沉积上来的离子所覆盖,以至杂质离子陷入沉淀的内部,称为包藏,又叫吸留。由包藏引起的共沉淀也遵循表面吸附规律。③生成混晶。如果晶形沉淀晶格中的阴、阳离子被具有相同电荷的、离子半径相近的其他离子所取代,就形成混晶。 共沉淀现象是玷污沉淀的主要因素。在重量分析中,总是设法减少共沉淀。但是共沉淀分离法却是富集痕量组分的有效方法之一。这是利用溶液中主沉淀物(称为载体或搜集剂)析出时将共存的某些微量组分载带下来而得到分离的方法。例如,在痕量Ra存在下,将硫酸钡沉淀时,几乎可载带下来所有的Ra2+。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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