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preconcentration

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  • n.预富集；预选；预浓缩
  • Web前浓缩；预先富集；预浓缩系统

E-C

Web Definition

n.
1.
预富集
2.
预选
3.
预浓缩

Sample Sentence

Definition:
AllAll,预富集预富集,预选预选,预浓缩预浓缩,前浓缩前浓缩,预先富集预先富集,预浓缩系统预浓缩系统
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
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1.
Hence, the preliminary separation and preconcentration of trace elements from matrix is often required.
因此，从基体中分离和预富集痕量元素显得十分必要。
yīn cǐ , cóng jī tǐ zhōng fēn lí hé yù fù jí hén liáng yuán sù xiǎn de shí fēn bì yào 。
paper.pet2008.cn
2.
A lot of facts have show that the preconcentration has been used for trace analysis with satisfactory result and low detection limit.
大量文献表明预富集技术用于痕量分析取得满意的效果，降低了检测限，提高了灵敏度。
dà liàng wén xiàn biǎo míng yù fù jí jì shù yòng yú hén liáng fēn xī qǔ de mǎn yì de xiào guǒ , jiàng dī le jiǎn cè xiàn , tí gāo le líng mǐn dù 。
www.chemyq.com
3.
Because of the content of microelements is extremely low, the preconcentration is usually necessary.
由于这些微量元素的含量很低，通常在测定前要进行预富集。
yóu yú zhè xiē wēi liàng yuán sù de hán liàng hěn dī , tōng cháng zài cè dìng qián yào jìn xíng yù fù jí 。
www.chemyq.com
4.
The composition, work principle as well as measurement and control system of a new X-ray separator for ore preconcentration are presented.
介绍了新型矿石预选设备X射-线分选机的组成、工作原理及其测量操作系统。
jiè shào le xīn xíng kuàng shí yù xuǎn shè bèi X shè - xiàn fēn xuǎn jī de zǔ chéng 、 gōng zuò yuán lǐ jí qí cè liáng cāo zuò xì tǒng 。
www.dictall.com
5.
High sensitivity detector and sample preconcentration techniques are often adopted to improve concentration detection limits in CE.
为此，常采用高灵敏的检测器和样品预富集技术来提高毛细管电泳的检测灵敏度。
wèi cǐ , cháng cǎi yòng gāo líng mǐn de jiǎn cè qì hé yàng pǐn yù fù jí jì shù lái tí gāo máo xì guǎn diàn yǒng de jiǎn cè líng mǐn dù 。
www.boshuo.net
6.
Both batch and column variants of SPE can be used for preconcentration purposes.
固相萃取的分配变量和圆柱变量都可以用于预浓缩的用途。
gù xiàng cuì qǔ de fēn pèi biàn liàng hé yuán zhù biàn liàng dōu kě yǐ yòng yú yù nóng suō de yòng tú 。
bbs.instrument.com.cn
7.
The single-drop microextraction is a very promising 'environment friendly'technique of separation and preconcentration.
有机化合物的有效方法，是一种有发展前途的的分离富集技术。
yǒu jī huà hé wù de yǒu xiào fāng fǎ , shì yī zhǒng yǒu fā zhǎn qián tú de de fēn lí fù jí jì shù 。
www.moderninstrs.org.cn
8.
Preconcentration of phthalate esters in environmental aquatic samples by n - octadecyl -bonded membrane extraction .
环境水样中邻苯二甲酸酯固相膜萃取预富集方法。
huán jìng shuǐ yàng zhōng lín běn èr jiǎ suān zhǐ gù xiàng mó cuì qǔ yù fù jí fāng fǎ 。
www.ecd123.com
9.
The preconcentration of lean magnetite ore for discarding the tailings has good economic feasibility.
预选抛尾后的贫磁铁矿分选处理，具有良好的经济可行性。
yù xuǎn pāo wěi hòu de pín cí tiě kuàng fēn xuǎn chǔ lǐ , jù yǒu liáng hǎo de jīng jì kě xíng xìng 。
www.magsci.org
10.
In order to improve the detection sensitivity of capillary electrophoresis, various sample preconcentration methods have been developed.
为了提高毛细管电泳的检测灵敏度，多种样品富集的方法得以发展。
wèi le tí gāo máo xì guǎn diàn yǒng de jiǎn cè líng mǐn dù , duō zhǒng yàng pǐn fù jí de fāng fǎ dé yǐ fā zhǎn 。
www.chemyq.com
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