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  components
    STUDIES ON ANTITUMOR ANTIBIOTIC 1588 Ⅱ.THE PHYSICOCHEMICAL PROPERTIES AND THE CHARACTERISTICS OF THE MAIN COMPONENTS
    抗肿瘤抗生素1588的研究——Ⅱ.理化性质及主要组分的特性
短句来源
    Extraction of Volatile Components from Coral Ginger (Zingiber corallnium)by Supercritical CO_2
    珊瑚姜挥发组分的超临界CO_2萃取工艺
短句来源
    Objective To observe the influence of Qingkailing Injection on the contents of transforming growth factor-β (TGF-β) and heats shock protein 70 (HSP70) of brain in different cerebral ischemic periods, and to investigate, on the base of nerroprotective factor, the mechanism of effective components of Qingkailing Injection for antagonizing cerebral ischemic lesion.
    目的观察清开灵有效组分对脑缺血不同时段脑组织转化生长因子β(TGF-β)和热休克蛋白70(HSP70)含量的影响,以期从神经保护因子环节探讨清开灵有效组分抗脑缺血损伤的机制。
短句来源
    Methods The adult male SD rats were randomly divided into the sham-operation group, model group, different groups of effective components of Qingkailing Injection and combined formula groups.
    方法成年雄性SD大鼠,随机分成假手术对照组、模型组及清开灵有效组分各组、合方组。
短句来源
    Conclusion The effective components of Qingkailing Injection has a preventive effect on focal cerebral ischemia of rat. One of the mechanisms may be that the effective components can improve the expressions of TGF-β and HSP70 with a chronological feature.
    结论清开灵有效组分对大鼠局灶性脑缺血具有保护作用,其机制之一可能是上调TGF-β和HSP70表达,其作用具有一定的时序性。
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  fraction
    When secreted inter-leukin-2 (IL-2) of the culture supernatant of the MLC was measured by ELISA, the GLE1 fraction was found to inhibit IL-2 secretion, which was comparable to the effect of the GLE1 fraction blocked IL-2 secretion.
    用ELISA检测培养液上清液中分泌的白细胞素-2(IL-2),可以发现GLE1组分可以抑制白细胞素IL-2的分泌,几乎完全阻断了IL-2的分泌。
    Study on Human Leukemia Cell Apoptosis inducing Effect of Fraction C of Naja naja Actra Venom
    中华眼镜蛇蛇毒组分C诱导白血病细胞凋亡作用的研究
短句来源
    Characteristic immunoloregulation effect of Angelica polysaccharide fraction(AP-3) purified from Angelica sinensis
    当归多糖组分AP-3对不同淋巴细胞亚群的作用
短句来源
    Effect of Angelica sinensis polysaccharide fraction AP-3 on IL-2 and IFN-γ induction
    当归多糖组分AP-3诱生小鼠脾细胞IL-2和IFN-γ的作用
短句来源
    Study on physico-chemical characteristics and analysis of D. fordii prain et burkill fraction DFPA-Ⅰ
    广东淮山多糖DFPA-Ⅰ组分的分析及理化性质研究
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  constituents
    Results 65 peaks were observed in its GC-MS and 36 compounds were identified. The main constituents included sesquiterpenes and Spathulenol whose content accounted for 15.39% and 9.22% respectively and the content of spathulenol was found to be the highest.
    结果检出106个峰,共检出其中65个组分,已鉴定出36种化合物,其中倍半萜烯类及其含氧衍生物总含量分别占15.39%和9.22%,且以斯巴醇含量为最高;
短句来源
    Analysis of Angelica polysaccharides constituents by high-performance liquid chromatography
    当归多糖组分的高效液相色谱分析
短句来源
    Recent progress in the study of some chemical constituents from marine brown algae
    褐藻某些化学组分研究新进展
短句来源
    Study on contents variation of main chemical constituents during combination of Rhizoma Coptidis with Fructus Evodiae after separated decoction
    黄连与吴茱萸分煎后配伍时主要组分含量变化规律研究
短句来源
    Content Determination of the 3 Constituents in Jiangzhiyin by HPLC Simultaneous
    高效液相色谱法同时测定降脂饮中3组分的含量
短句来源
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  “组分”译为未确定词的双语例句
    EFFECTS OF PHLOROGLUCINOLS FROM DRYOPTERIA CRASSIRHIZOMA NAKAI ON ULTRASTRUCTURE AND RESPIRATION IN LEUKEMIA P388 CELLS
    贯众抗肿瘤有效组分对P—388细胞超微结构及细胞呼吸的作用
短句来源
    Effects of PFEM and SOD on Cerebral Ischemia Followed by Reperfusion in Gerbils
    荞麦花粉水溶性黄酮组分对沙土鼠脑缺血重灌流损伤的保护效应
短句来源
    Determination of the Volatile Oil of Schisandra Chinensis (Turcz.) Bail by the Method of GC/MS
    辽五味子挥发组分GC/MS法鉴定
短句来源
    Purification and Characterization of Polysaccharide from Ganoderma Lucidum Fermentative Product
    灵芝菌发酵产物中多糖组分的分离与性质研究
短句来源
    The Curative Effects of Astragalus membranaceus Bungo A_6 in Combination with Acyclovir on the Mice Infected with HSV-1
    黄芪A_6组分与无环鸟苷联合对Ⅰ型单纯疱疹病毒感染小鼠的治疗作用
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  components
A varietyQ??19 is explicitely constructed as the union of 22 disjoint irreducible components which are either points or open subsets of linear spaces.
      
Semi-invariants of quivers can be constructed by taking admissible partial polarizations of the determinant of matrices containing sums of matrix components of the representation and the identity matrix as blocks.
      
Secon, we are interested in dominant polynomial mapsF:?n→?n-1 whose connected components of their generic fibers are contractible.
      
A fundamental question is how the irreducible components are embedded in the tensor product.
      
We give a characterization and a combinatorial description of representations with small Cartan components.
      
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  fraction
The following structure has been determined for the repeating unit: →6)-α-D-Glcp-(1→ This fraction exhibited significant macrophage activity through the release of nitric oxide
      
In the present study, the effect of picroliv, an irridoid glycosidic fraction of Picrorhiza kurroa, on the above said parameters of these alcoholic rats was studied.
      
It was found that the size and content of pores increased with an increase in the PU mass fraction in the PAA/PU blend up to 20%.
      
Because of the existence of nanopores, the dielectric constant of PI films decreased by a wide margin and was less than 2.0 at a PU mass fraction of 20%.
      
The percolation thresholds of PS/PPy and Zn-SPS/PPy composites were 6.2% and 2.7% of the volume fraction of PPy, respectively, much lower than the theoretically predicted value of 16%.
      
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  constituents
PHYTOCHEMICAL CONSTITUENTS AND ANTIMICROBIAL ACTIVITY FROM THE STEMS OF JATROPHA MAHESHWARII
      
New bioactive constituents from eleutherine americana
      
Three new constituents were isolated from Eleutherine americana Merr.
      
The optimal constituents of microemulsion were found from pseudoternary phase diagrams: the mass ratio of Span80 to PS was 4:1 and complex surfactant to cosurfactant was 1:1.
      
To study the bioactive constituents from Andrographis paniculata, two compounds were isolated and purified by column chromatography on AB-8 macro-porous adsorption resin and polyamide.
      
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A method for the determination of curcumol in the volatile oil of Gurcuma aromatica by thin-layer chromatography coupled with infrared spectrophotometry is reported. The volatile oil is chromatographed on a silica gel G plate with petroleum ether (30~60℃)-acetone (96:4) as the developer. Under this condition, interfering substances with lower polarity than curcumol-are carried farther from the origin while curcumol is retained near the origin. The curcumol zone, which can be ascertained by its predetermined...

A method for the determination of curcumol in the volatile oil of Gurcuma aromatica by thin-layer chromatography coupled with infrared spectrophotometry is reported. The volatile oil is chromatographed on a silica gel G plate with petroleum ether (30~60℃)-acetone (96:4) as the developer. Under this condition, interfering substances with lower polarity than curcumol-are carried farther from the origin while curcumol is retained near the origin. The curcumol zone, which can be ascertained by its predetermined R_f value, is scraped off from the plate and eluted with CHCl_3. For the quantitative determination of curcumol by infrared spectophotometry, use is made of the absorption peak of vinylidene group in the molecule(out-of-plane bending vibration, 890 cm~(-1), 11.24μm) with GCl_4 as the solvent. Since the vinylidene band is specific for curcumol, a complete separation of curcumol from other non-interfering components. is not required. The method is simple and gives accurate and reproducible results. The statistical results show that the average relative deviation of eight determinations is less. than 2%.

本文报告用薄层层析-红外光谱法测定莪术挥发油中莪术醇的含量。以石油醚-丙酮(96:4)为展开剂,在硅胶G板上将挥发油中极性较小的干扰物质层析至高R_f值区而将莪术醇留在原点附近,然后无需标记出莪术醇的斑点,根据经实验求出的莪术醇的R_f值直接将薄层上莪术醇部分刮下洗脱,再以红外光谱中莪术醇分子中亚乙烯基的吸收峰(面外弯曲振动890 cm~(-1),11.24μm)为定量谱带,用四氯化碳为溶剂,以红外光谱法测定莪术醇的含量。由于亚乙烯基谱带的专属性较强,除干扰组分外,其他组分与莪术醇无需严格分离。本法操作简便,结果稳定,统计结果表明,8次测定的平均相对偏差小于2%。

A method for the determination of curcumol in the volatile oil of Gurcuma aromatica by combined thin-layer chromatography and spectrophotometry was developed. The volatile oil (1:10 MeOH solution) was chromatographed on a silica gel G plate (5.5× 20 cm) with petroleum ether (30~60℃) -acetone-ethyl acetate (94:5:1) as the developing solvent. The curcumol spot was detected by exposing the plate to I_2 vapour for two minutes. After the I_2 had escaped, the spot was scraped into a 10 ml glass-stoppered fugal tube,...

A method for the determination of curcumol in the volatile oil of Gurcuma aromatica by combined thin-layer chromatography and spectrophotometry was developed. The volatile oil (1:10 MeOH solution) was chromatographed on a silica gel G plate (5.5× 20 cm) with petroleum ether (30~60℃) -acetone-ethyl acetate (94:5:1) as the developing solvent. The curcumol spot was detected by exposing the plate to I_2 vapour for two minutes. After the I_2 had escaped, the spot was scraped into a 10 ml glass-stoppered fugal tube, 1.6 ml 20% phloroglucinol solution (in ethanol.) was then added. The mixture was shaken and allowed to stand for about twenty minutes, concentrated hydrochloric acid was added until the total volume reached 5.0 ml. After centrifugation, the absorbance was measured at 520 nm against a reagent blank. The reaction of phloroglucinol with curcumol is specific, and the method gives steady and reproducible results.

莪术挥发油(1∶10甲醇溶液)在硅胶G薄层上,用石油醚(30~60℃)-丙酮-乙酸乙酯(94∶5∶1)展开,碘蒸气显色两分钟,挥去碘后,将莪术醇斑点刮至具塞刻度离心管中,加入2%间苯三酚乙醇溶液1.6ml,放置并振摇约20分钟,继加浓盐酸至总体积为5.0m1,摇匀,离心数分钟后倾取上清液以试剂空白为对照于520nm测定。因间苯三酚与莪术醇显色反应的专属性较强,灵敏度亦较高,且莪术挥发油中各组分采用上述层离条件可有效地分离,故本法的测定结果比较稳定,操作亦甚简便。

The root tubers of some species of the genus Stephania are known as "Shan-wu-gui" in the indigenous medicine of South and South-western China. In recent years, from these root tubers some useful alkaloids, such as l-tetrahydropalmatine, l-dicentrine cepharanthine, isocorydine, etc., have been isolated for medicinal purposes.The present investigation was undertaken with the aim to find out a method for the determination of the original plants and the drugs of this Chinese folk medicine mentioned above.In the...

The root tubers of some species of the genus Stephania are known as "Shan-wu-gui" in the indigenous medicine of South and South-western China. In recent years, from these root tubers some useful alkaloids, such as l-tetrahydropalmatine, l-dicentrine cepharanthine, isocorydine, etc., have been isolated for medicinal purposes.The present investigation was undertaken with the aim to find out a method for the determination of the original plants and the drugs of this Chinese folk medicine mentioned above.In the part Of botanical studies of this paper, many specimens bearing the name "Shan-wu-gui", collected primarily from Yunnan and Guangxi, are carefully identified and 17 species of plants, all belonging to the genus Stephania, are recognized, viz. S. kwangsiensis Lo, S. viridiflavens Lo et M. Yang, S. micrantha Lo et M. Yang, S. hainanensis Lo et Y: Tsoong, S. dolichopoda Diels, S. dicentrinifera Lo et M. Yang, S. mashanica Lo et B. N. Chang, S. kuinanensis Lo et M. Yang, S. dielsiana Y. C. Wu, S. succifera Lo et Y. Tsoong, S. yunnanensis Lo, S. longipes Lo, S. brachyandra Diels, S. epigaea Lo, S. cepharantha Hayata, S. sinica Diels, S. excentrtca Lo. An analytical key and a brief critical catalogue of these 17 species are given.The pharmacognostical features of the root tubers of 16 species of these plants are studied in details by thin-layer chromatography of the total alkaloids and the microscopic observations of the powdered drugs. The results (fig. 1 & tab. 1) of thin-layer chromatography demonstrated that these 16 species are different in the composition of the total alkaloids. The powdered drugs, including starch grains, stone cells, and crystals of calcium oxalate, are described with plates of illustrations (tab. 2 & Pl. Ⅰ-Ⅲ).

本文对主要采自广西和云南的大量“山乌龟”原植物标本进行了研究,经鉴定共17种千金藤属植物。 还研究了16个种的块根的药材特征,涉及生物碱的薄层层析和药材粉末的显微观察。薄层层析结果表明它们在生物碱的组分上是有差异的。对药材粉末的主要显微特征——淀粉粒、石细胞和草酸钙结晶作了描述与附图。从而为鉴定药材提供了依据。

 
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