HPLC法测定骨康胶囊中含芍药苷的量

建立HPLC法测定骨康胶囊中含芍药苷量的方法.样品经甲醇超声提取后,采用HPLC法测定骨康胶囊中含芍药苷量的方法,使用C18色谱柱,甲醇-水(28∶72)为流动相.检测波长为230 nm,流速为1.0 m L/min.芍药苷线性范围是9.8~99.0μg/m L,相关系数r=0.999 8,平均回收率99.46%.样品处理方法合理,方法学考察符合定量要求,结果准确,可用于骨康胶囊中含芍药苷的量测定.     

九味消癥胶囊质量标准研究

目的:建立九味消癥胶囊质量控制标准。方法:采用TLC法对九味消癥胶囊中黄芪、大黄等药材进行定性鉴别;采用HPLC法对九味消癥胶囊中芍药苷的含量进行定量测定。结果:TLC色谱中阴性样品均无干扰,斑点清晰,专属性强;芍药苷在24.12~300.1μg之间峰面积与浓度呈良好的线性关系,r=0.9999,平均回收率为97.17%,RSD=0.70%。结论:本方法准确,快捷,重现性好,可用于九味消癥胶囊的质量控制。     

复方珍珠暗疮胶囊中黄芩苷含量测定

建立了HPLC法测定复方珍珠暗疮胶囊中黄芩的有效成分黄芩苷含量的方法.采用C18柱,流速1 mL/min、流动相水相（取庚烷磺酸钠0.40 g,磷酸二氢钠3.90 g,加水溶解并稀释至1 000 mL）-甲醇（56：44）,用冰乙酸调pH至3.40;检测波长275 nm.结果表明：黄芩苷在0.49-5.88μg线性关系良好,相关系数为0.999 7,回收率为99.32%,RSD为0.9%（n=6）.该法适用于复方珍珠暗疮胶囊中黄芩苷的含量测定.     

HPLC法测定纳米龙血竭胶囊中龙血素A的含量和包裹率

目的:建立HPLC法测定纳米龙血竭胶囊中龙血素A的含量和包裹率.方法:在C18柱,甲醇-1%冰乙酸溶液(体积比66∶34)为流动相,检测波长280nm,柱温35°C条件下,HPLC测定样品.结果:龙血素A在0.22~7.78μg范围内有良好线性关系,r=0.997,方法回收率94.42%,RSD为1.94%.结论:此方法可用于测定自制纳米龙血竭胶囊中龙血素A含量和龙血竭的包裹率.     

高效液相色谱法测定暖宫孕子丸中芍药苷的含量

目的：建立一种高效液相色谱法测定暖宫孕子胶囊中芍药苷含量的方法.方法：用C18ODS2色谱柱;以甲醇-0.05moL/L磷酸二氢钾溶液-醋酸-异丙醇（67：173：4：4）为流动相;流速为1.0 mL/min;检测波长为230 nm;柱温为25℃.结果芍药苷在0.087～0.435 ug范围内呈良好的线性关系,r=0.9997,平均回收率为96.4%（RSD=1.2%）.结论该方法简便、快捷、准确.     

HPLC法测定黄豆苷元胶囊的含量

建立HPLC法测定黄豆苷元胶囊的含量.方法:采用Hypersil ODS 色谱柱,(4.6 mm ×150 mm,5 μm),流动相水-乙腈(70∶30),流速为1 mL·min-1,检测波长249 nm,柱温30 ℃,进样量15 μL.结果:在1.0～20.0 μg·min-1浓度范围内线性关系良好,方法回收率为101 98%,RSD为1.45% (n＝9),精密度良好.结论:本方法灵敏、准确、专属性强,用于该制剂含量测定结果满意.     

安神补脑胶囊质量标准的研究

对安神补脑胶囊的质量标准进行研究;采用高效液相色谱法;安神补脑胶囊中二苯乙烯苷的含量为2.484 mg/粒;采用HPLC法测定制何首乌中2,3,5,4′-四羟基二苯乙烯-2-O-β-D-葡萄糖苷(C20H22O9)的含量,可以作为安神补脑胶囊的定量标准,测定方法简便、准确、可靠、重现性好.     

RP-HPLC法测定通天口服液中芍药苷的含量

目的 建立通天口服液中芍药苷的含量测定方法。方法 采用高效液相色谱法测定通天口服液中芍药苷含量。色谱柱：Kromasil C18柱（4.6 mm?50 mm,5 μm）;流动相：乙腈-0.1%磷酸梯度洗脱;柱温30℃;检测波长230nm;进样量：10礚。结果 芍药苷在0.339礸/mL-3.782礸/mL范围内与峰面积呈良好线性关系,r=0.9999;芍药苷平均回收率为100.03%,RSD=1.79%（n=6）。结论 该定量方法简便可行、重复性好,可用于通天口服液的质量控制。     

亳白芍与赤芍药材中芍药苷含量比较

目的:建立简单、快速、灵敏、准确的HPLC-DAD法测定亳白芍与赤芍药材中芍药苷的含量。方法:采用HPLC-DAD法,ZORBAX SB-C18(250 mm×4.6 mm I.D.,5μm)色谱柱;以乙腈为流动相A,0.10%磷酸水溶液为流动相B;等度洗脱;柱温25℃;检测波长为230 nm;流速为1.0 mL·min-1。分离度R大于1.5,理论塔板数N,按芍药苷计不低于4000。结果:亳白芍和赤芍药材中芍药苷的含量分别为24.43 mg·g-1、32.77 mg·g-1。结论:赤芍药材中芍药苷的含量显著高于亳白芍药材中芍药苷的含量。     

用HPLC法测定根痛平胶囊中芍药苷的质量比

对根痛平胶囊中的君药白芍的有效成分芍药苷的质量比测定方法进行了研究;采用高效液相色谱法测定根痛平胶囊中芍药苷的质量比;测得根痛平胶囊中芍药苷质量比为1.284 9 mg/粒;采用高效液相色谱法测定根痛平胶囊中芍药苷的质量比可作为根痛平胶囊的定量标准,测定方法简便、准确、可靠、重现性好.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

The Analects and the Moment in Peking——The influence of a Confucian education system on the personality formation,the way of thinking and the fate of the main characters

0.Preface China has long been boasting of its colorful and immense culture which comprises of Taoism,Confucianism and Buddhism.The interwoven influence among the religions on Chinese way of thinking,on the nation＇s behavior in their social life throughout the long history is beyond list.