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In this paper,the mass transfer efficiency of a new type structured packing of rhombus mesh frame used in extraction process was studied.

对一种新型网架规整填料用于萃取时的传质效率进行了实验研究。

The saponification and membrane extraction process is a combination of the above processes.

采用皂化萃取工艺,可提高Nd3+的利用率,并可根据皂化率任意控制游离酸浓度。

Soothing and calming plant extracts protect sensitive skin,leaving skin soft and supple.

镇定及安抚性质的植物萃取保护敏感肌肤,让肌肤保持细致柔嫩。

The optimum extracting condition for polysaccharides from Bu-yang-huang-wu-tang by microwave-assisted extractionwas studied using single factor experiment and orthogonal method.

采用单因素实验和正交实验法,进行了微波辐射萃取补阳还五汤多糖的最佳工艺条件研究。

Methylmercury was extracted from the homogenized tissue with toluene in the presence of copper sulfate, sodium bromide and sulfuric acid

在存在硫酸铜、溴化钠和硫酸的情况下,用甲基从组织匀浆中萃取甲基汞。

Solani. The extract was further separated into two parts and one part separated by ethyl acetate while the other was separated by petroleum ether. Based on the inhibition experiment against R. solani, ethly acetate extract has a rather strong effect on R. solani with 89.70% inhibition rate and 15.52 mgmL^(-1) EC 50.The effect of petroleum ether extract on R. solani is relatively weak. The former was again divided into five parts in silica gel column, of which the second part significantly inhibits R. solani. During the periods of 24 and 48 hrs, the inhibition rate of the second part on R. solan is respectively 89.58% and 80.36%.

结果表明:鸭粪乙醇提取物对水稻纹枯病菌有抑制作用,24h内最高菌丝生长抑制率和EC50分别为88.64%、26.11mgmL^(-1);鸭粪乙醇提取物经萃取分离得到石油醚和乙酸乙酯两种组分,其中石油醚组分抑菌效果较弱,乙酸乙酯组分抑菌能力较强,其对水稻纹枯病菌抑制率为89.70%,EC50为15.52mgmL^(-1);对乙酸乙酯组分进行硅胶柱层析分离得到5种流份,其中第2流份有显著抑菌活性,在24h和48h内对水稻纹枯病菌的抑制率分别为89.58%和80.36%。

This resulted in an MISPE-HPLC method allowing the direct extraction of the analytes from the sample matrix with a selectie wash using just 10% organic solent.

这样就产生了一种MISPE-HPLC方法,可以用仅含10%有机溶剂的选择性洗液从样品基质中直接萃取被分析物。

Solid phase extraction for the choice simple and quick method.

为固相萃取选择了简洁而快速的实验方法。

Solid phase extraction is an effective method to enrich and separate samples.

固相萃取是对样品富集、分离的一种有效方法,因而得到广泛应用。

A method was developed to monitor DA-6 in water using the combination of solid phase extraction and gas chromatography.

摘 要:建立了固相萃取-气相色谱法测定水体中胺鲜酯残留量的方法。

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I didn't watch TV last night, because it .

昨晚我没有看电视,因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来,在北京的很多小区里,电梯液晶电视被撤了下来。

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我比喻得过头了。