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1)  Concentration [英][,kɔnsn'treɪʃn]  [美]['kɑnsṇ'treʃən]
浓集
1.
Concentration and Purifcation of Gametocytes of Leucocytozoon caulleayi by Density Gradient Centrifugation;
卡氏住白细胞虫配子体的浓集和纯化
2.
Loading and concentration of uranium from alkali leaching solution of uranium ore with titanium sulfate gel are studied.
研究了用硫酸钛凝胶从铀矿石的碱浸出液中载带浓集铀。
3.
The concentration factors(CFs) and the distribution of 90 Sr in two kinds of fresh water gastropod, Ampullaria gigus Spix and Bellarnya purificata A Gigas were studied.
本文报道了两种淡水腹足类动物对90 Sr的浓集与分布的过程 ,大瓶螺 (Am pullariagigasSpix) 4h开始便迅速浓集90 Sr并转至螺体各个部位 ,小个体各器官组织对90 Sr的浓集系数大于大个体 ,刚孵化的幼螺在 1 5min内便对90 Sr有浓集作用 ,并随时间的延长而增加。
2)  concentration factor
浓集系数
1.
The concentration factor of 141Ce in water by Ceratophyllum demersum was .
99988;水生植物对水体中的141Ce均具有较强的富集能力,其中金鱼藻的浓集系数最高(最大值为3473。
3)  Pre-Concentration
浓缩富集
1.
Simultaneous Determination of Lead and Cadmium in Tap Water after Pre-Concentration Using Quartz Sub-Boiling Distiller by Flame Atomic Absorption Spectrometry;
石英亚沸蒸馏器蒸馏浓缩富集FAAS法同时测定自来水中的铅和镉
4)  Preconcentration ['pri:kɔnsen'treiʃən]
预浓集
1.
Study on the Determination of Trace Cu(Ⅱ) by DDTC Chelating Resin Preconcentration and Thin Layer Resin Phase Spectrophotometry;
螯合树脂预浓集薄层树脂相吸光光度法测定痕量铜的研究
5)  electrolysis enrichment
电解浓集
1.
This paper briefly describes the working principle of solid polymer electrolysis enrichment device of tritium in water, presents experiments and works in development of SPE tritium automatic electrolysis enrichment device by CIRP, with which the water samples had been processed for TRIC2000, and the measurement results are satisfied.
简述了SPE固体聚合膜氚水自动电解浓集装置的工作原理,介绍了在研制该装置中所进行的实验与工作进展。
6)  on line concentration
在线浓集
补充资料:斑点再浓集
分子式:
CAS号:

性质:指在薄层色谱中,展开的样品斑点直径变小的现象。采用同样的展开剂,同一展开方向,同样展开距离的单向多次展开方法,可使斑点再浓集的现象反复发生,经单向n次展开后,斑点即浓集为原斑点直径的(1-Rf)n倍。程序控制多次展开(PMD)也是采用同样的展开剂,同一展开方向,但展开距离逐次加大。上述两种方法可使斑点浓集至直径1~2mm。但要注意浓集效果与样品载量及薄层质量密切相关。

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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