提取

Objective:To study the extraction in the processes of Weitongliying Soft Capsule after extracted by Supercritical carbon dioxide fluid.Methods:The most appropriate technology was screened based on the comparative study among the technology of ethanol circumfluence,ultrasonic extraction,water warm immersion and water decoction,with the concentration of menstruum, volume and extracting time as the evaluating factors,on the basis of orthogonal design.

目的：研究胃痛立应软胶囊制备中二氧化碳超临界流体（SFECO2）萃取后药材的提取工艺方法：对比乙醇回流、温浸、超声及水煎等提取工艺，以溶媒浓度、用量、提取时间研究因素，经正交设计进行提取工艺条件的优选。

The mignonette element's lye microwave extraction process related influencing factor carries on the single factor analysis and the orthogonal experiment to the peanut shell in discusses.The experimental result indicated:The fluid material the influence is bigger than to the extraction rate,Next is the microwave extraction time,Is small what to the extraction rate influence is the sodium hydroxide density.

对花生壳中木犀草素的碱液微波提取工艺有关影响因素进行单因素分析和正交实验探讨，实验结果表明：液料比对提取率的影响最大，其次是微波提取的时间，对提取率影响较小的是氢氧化钠的浓度。

In this study, two methods (extracted with heating or ultrasonic) were used to extract org...

同时还比较了不同提取方法的提取效果，表明加热提取比超声波提取的效果更好。

Geochemical analyses include 'total'(concentrated HNO3 -HCl digestion) and chemical forms (three step sequential digestion, reducible, oxidizable and residual forms) of heavy metals Cu, Zn, Pb, Cr,Fe and Mn, iron oxides dithionite-citrate-bicarbonate (DCB and ammonium in the dark extraction as the estimation of total and amorphous iron oxides, respectively, total sulfur and organic matter.

化学分析包括重金属（Cu、Zn、Pb、Cr和Fe、Mn）"总量"（浓HNO3、HCl提取，非严格的总量）、形态（三步提取法，可还原态、可氧化态和残渣态）、氧化铁（连二亚硫酸钠－柠檬酸钠－重碳酸钠提取和草酸铵提取分别估计总氧化铁和无定形氧化铁）、总硫和有机质，并比较了DCB提取前后样品磁性特征的变化。

objective to observe the antitumor activities of different solution extracts of plumbago zeylanica l.in vitro.method mtt method was used to detect the inhibitory effects on four kinds of cancer cells.results chloroform extracts had significant inhibitory effects on the breast cancer cell(bre-04),the nerve cancer cell(n-04) and the lung cancer cell(lu-04),ic50 were 0.2699mg/ml and 0.2634mg/ml,0.4961mg/ml respectively.ic50 of chloroform extract on the hepg2 was 0.9379mg/ml.ic50 of petroleum ether extracts on bre-04,n-04,lu-04 and hepg2 was 0.5902mg/ml,0.5725mg/ml,0.7938mg/ml,0.6374mg/ml;ethyl acetate extracts had fairly inhibitory effects on the lu-04,ic50 was 0.7343mg/ml;n-butanol extracts and water-solubility extracts had notsignificant inhibitory effects on the four kinds of cancer cells.conclusion the antineoplastic effective parts of plumbago zeylanica l.were chloroform and petroleum ether extracts.

目的 探讨白花丹体外抗肿瘤作用的活性部位。方法 mtt染色法对白花丹五种溶剂提取物体外抗肿瘤活性进行了初步的研究。结果氯仿提取物对乳腺癌细胞（bre-04）、神经癌细胞（n-04）、肺癌细胞（lu-04）有较好的抑制生长作用，ic50分别为0.269 9 mg/ml、0.263 4 mg/ml、0.496 1 mg/ml，对肝癌细胞hepg2抑制作用差， ic50为0.937 9 mg/ml；白花丹石油醚提取部位对乳腺癌细胞（bre-04）、神经癌细胞（n-04）、肺癌细胞（lu-04）、肝癌细胞hepg2的ic50分别为0.590 2 mg/ml、0.572 5 mg/ml、0.793 8 mg/ml、0.637 4 mg/ml；乙酸乙酯提取物对肺癌细胞（lu-04）有一定的抑制作用，ic50为0.734 3 mg/ml；水溶性提取物以及正丁醇提取物无明显抑制肿瘤作用。结论白花丹氯仿提取部位、石油醚提取部位体外抗肿瘤作用较好，值得对其提取部位进一步分离纯化并研究其抗肿瘤作用机制。

The extraction method of flavonoid in pomelo peel was studied with different ways.

通过各种不同的方法提取柚皮中的黄酮类化合物，比较不同提取方法的提取效率及提取物中黄酮类化合物的含量，从而探讨最佳的提取方法。

The results of orthogonal test showed that the optimum extraction processof quinone from C. cathayensis peel was 70% ethanol as extraction solvent with solid-liquid ratio of 1: 15, extraction temperature of 60℃ and extraction time of 2 h. Under this condition, the yield rate of total quinone reached 0.84%.

正交试验结果表明，山核桃果皮醌的最佳提取工艺为：70%乙醇为提取剂，料液比1： 15，提取温度60℃，提取时间2 h，此条件下，总醌得率达0.84%。

Methods Compared with the ultrasonic extraction and the refluent extraction experiment,colorimetric analysis was used to measure the content of active ingredients.

方法比较超声提取和回流提取实验，用比色法测定有效成分；采用回流提取正交实验，并对实验数据经不同的计算和分析比较优选螃蟹脚的提取工艺条件。

The third aspect studied the stability of the semifinished and purified pigment under different circumstances.

超声法提取枣皮红色素的最佳工艺参数为：超声时间25min，超声功率300W，提取剂的浓度0.9%，料液比1：25，提取级数三级，枣皮红色素的提取率达94.08%。

It is also used to generate SPICE stimulus waveforms for these special sequential logic circuits quickly according to user's logic parameter specifications, as can speed up the logic parameter extraction process and guarantee a proper SPICE simulation waveform for the logic extraction.

提出了对具有反馈信息的时序逻辑电路进行逻辑参数提取时用于SPICE模拟的激励波形自动生成方法，该方法能根据用户指定的要提取的时延参数要求，很快产生这种时序逻辑电路的模拟激励波形，从而可以加快逻辑参数的提取过程，保证参数提取激励波形的正确性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。