萃取

In order to recover nonferrous metals in copper-nickel alloy scrap, a corresponding technology was adopted as follows crushing copper-nickel alloy scrap→leaching the sample with sulfuric acid→extracting copper ion with N902→extracting zinc ion with P204→getting nickelous sulfate solution.

采用粉碎白铜合金废料→酸浸出→N902萃取分离出铜离子→P204萃取分离出锌离子→水相中剩余硫酸镍溶液工艺回收白铜合金废料中的有色金属。

The oxidation stability experiments of the oil extracted by the pressing and super critical CO_2 methods showed that the oil extracted by super critical CO_2 method is much more oxidable compared with the pressed oil.

冷榨法和超临界CO_2萃取的苦杏仁油的氧化稳定性测定结果表明，超临界CO_2萃取的苦杏仁油在贮藏过程中更易被氧化。

Objective:To establish a optimal technical conditions for of the extraction of volatile oil from Pericarpium Citri Reticulatae by supercritical CO_2 extraction.

目的：研究超临界CO2萃取陈皮挥发油的最佳萃取工艺条件。

Based on the experimental results, the prediction model by Back Propagation neural network for extraction of chlorophyll from leaves of phyllostachys edulis with supercritical carbon dioxide was established in this article.

依据实验研究结果，论文建立了基于BP神经网络的超临界CO2流体萃取毛竹叶中叶绿素的预测模型。利用此模型对超临界CO2流体萃取毛竹叶中的叶绿素进行了预测，预测结果与实验数据吻合较好。

The nickel, lead, cadmium and mercury ions were pre-column derived by tera-(2-aminophenyl)-porphine (T2APP). These chelates were enriched by solid phase extraction with C18 cartridge and the enrichment factor of 50 was achieved.

中草药样品用微波消化，样品消化液中的镍、铅、镉、汞用四－－卟啉(T2APP)柱前衍生，然后用ZORBAX RP18固相萃取小柱萃取富集镍、铅、镉、汞的T2-APP络合物，富集倍数为50倍；经富集后的络合物用乙腈和0.05mol？

Experimental data on supercritical carbon dioxide deacidification of 10% free fatty acid contained oil at 200 bar, 353K, consumed with 2700 g of carbon dioxide indicated that concentration of free fatty acid in the raffinate oil dramatically decreased down to 0.26%, and the oil still retained 1.3% of γ-oryzanols and 94.7% triglyceride.

在超临界二氧化碳萃取蒸馏程序方面，以200 bar、353K和2700克的二氧化碳，在填充27公分高θ型网的萃取槽，脱酸游离脂肪浓度为10%的米糠油，可在塔底获得游离脂肪酸浓度为0.26 %的脱酸油。

The unit of IPL Purify in IPL circulation system was calculated and analyse . Feed temperature is consequential to effect of extract and vapor flux of reboil is marked to the stripper.

对无机循环系统的无机工艺液净化单元进行了工艺参数分析，定量的分析了进料温度和进料量对萃取塔萃取效果的影响，以及再沸器蒸汽流量对汽提塔分离效果的影响。

To a liquid. Supercritical fluid can separate the extracts effectively without the recollective process, not like the general organic solvents with the residues.

超临界流体能有效将萃取物分离，不需要一般液体萃取时的有机溶剂回收过程，不会产生有机溶剂残留的缺点。

As shown in previous studies Hibiscus sabdariffa L. is a nature plant containing a lot of pigments that was found to possess antioxidative activity.In this study, we evaluated the antioxidative activity of the Hibiscus anthocyanins by measuring their effects on LDL oxidation and anti-atherosclerotic abilities.

本实验以乾燥洛神花为材料，以调酸的甲醇溶剂萃取其花青素，发现甲醇萃取率为5％；纯度测定约有85~95％，另以HPLC分析后发现其花青素主要分为两类，推测分别为delphinidin系及cyanidin系，其花青素含量分别为3.7％及0.9％。

To synthesize the results of the research above, we found that the well result of the study on activities and detergency are extracted by methanol extracts. It had ability of antioxidant and anti-iflammatory activity on the biological activities. Sapindus mukorossi were surface activity well and stretched less damage on hair. It will raise application value of Sapindus mukorossi on cosmetics.

综合以上之结果，甲醇萃取物为乾燥粉末可增加原料保存性，且发现在生物活性及清洁力试验上皆以甲醇萃取物之效果最好，具抗氧化、抗发炎能力，此外存在表面活性优良性质，对头发强度之伤害性小，因此增加其在化菻~上之应用潜力。

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。