中药复方制剂中大黄素的提取工艺及含量测定

样品经适当提取后，采用薄层扫描法对抗肾衰胶囊中的大黄素进行含量测定，在硅胶G展开，以苯－醋酸乙酯－甲酸－甲醇－水（3：1：0．05：0．2：0．5）展开。扫描（λs=440nm,λr=600nm）测得样品含量为10．665，加样回收率为102．6％，精密度RSD＝1．31％，实验证实此方法可靠、准确、操作简便，可用于该制剂的质量控制。     

HPLC法测定盐酸林可霉素注射液的含量

目的：采用HPLC法测定盐酸林可霉素注射液中林可霉素的含量。方法：用Nova-pakC18色谱柱（3．9mm×150mm），以0．05mol／L硼砂溶液（用85晚磷酸调pH值至6．0）-甲醇（3：2）为流动相，检测波长为214nm。结果：林可霉素线性范围为0．2526～2．0208mg／ml，r2=0.9999，回收率为972％，RSD=1.65％（n=5）。结论：本方法简便、快速、灵敏，可准确测定盐酸林可霉素注射液中林可霉素的含量。     

HPLC法测定小儿氨酚黄那敏颗粒剂中噩乙酰氨基酚含量

目的：用反相高效液相色谱法测小儿氨酚黄那敏颗粒中对乙酰氨基酚含量。方法：采用C18色谱柱，流动相为甲醇：0．05mol／L醋酸铵溶液（15：85），检测波长为257nm。结果：对乙酰氨基酚在6-361．Lg／ml浓度范围内线形关系良好，r=-0．9999，平均回收率99．28％（n=5），RSD=0．62％（n=5）。结论：该方法简单、快速、准确，可以有效地控制药品质量。     

酚硫酸法测定灵芝多糖的研究

目的：从灵芝中提取多糖，并测定其含量．方法：灵芝多糖的提取一般方法为醇析沉淀法，本实验为找出该方法的最佳工艺条件，结果表明：灵芝多糖提取的最佳工艺条件为：乙醇浓度85％，乙醇：料液为2：1，pH为6．5．结果：用酚-硫酸比色法测定多糖的含量，测得灵芝多糖含量6．55％，平均回收率99．05％，RSD=1．02％（n=3）．结论：该法操作简便，重现性好，实验结果令人满意．     

HPLC法检测发酵液中的木糖和木糖醇

建立高效液相色谱检测发酵液中木糖和木糖醇含量的分析方法．色谱柱为ZORBAX碳水化合物，柱温30℃，流动相为乙腈：水=80：20（V／V），流速1．2mL／min，示差折光检测器检测．木糖和木糖醇在 0．5～40．0mg／mL范围内浓度与峰面积线性关系良好（R2分别为0．9931和0．9947），平均回收率分别为99．80％（n=5，RSD=1.35％）和99．62％（n=5，RSD=1．65％）．方法简便、快速、准确。     

用固定化酶管流动注射测定谷氨酸

用多孔玻璃珠固定自制的谷氨酸氧化酶（GO）制成GO固定化酶管，并结合流动注射系统测定谷氨酸（Glu)的含量，测定的线性范围在0．2－3．0mol/m3，精密度（c.v.)为0．75％，测定速率每小时60个样品，该酶管使用寿命为40d，在一定的条件下，保存稳定期达120天，当测定的Glu浓度低于3mol/m3时，pH在6．5－7．5，温度在20－30度，磷酸盐浓度在0．05－0．25mol/L范围内变化时，对Glu含量的测定几乎无影响，用醋酸纤维膜修饰的铂电极测定H2O2选择性好，该方法与试剂盒法同时测定不同发酵时间发酵液中Glu的含量，两者结果一致。     

高效液相色谱法测定嘎日迪-5味丸中绿原酸的含量

目的：建立测定蒙药嘎日迪-5味丸中绿原酸含量的反相高效液相色谱法．方法：用ODS C18色谱柱，流动相为乙腈-水-冰醋酸（11．5：88．5：2），检测波长318nm，流速为1ml／min．以外标法测定了嘎日迪-5味丸中绿原酸的含量．结果：绿原酸在4．5～22．5μg/ml浓度范围内呈良好的线性关系．平均回收率为98．1％，RSD=2．2％（n=5）．结论：本法简便，可靠，可作为蒙药嘎日迪-5味丸的含量测定方法．     

RP-HPLC法分析罗红霉素含量

目的建立用RP-HPLC法分析罗红霉素药物含量的方法。方法以安捷伦ZORBAX Eclipse XDB—C18柱为色谱柱、乙腈（0．010moL／L）醋酸铵缓冲液（体积比70：30,pH=6．5）为流动相,选择220nm为检测波长;柱温40℃,用反相高效液相色谱法测定罗红霉素（Roxithromyein,RM）的含量。结果罗红霉素的浓度在1．150～100．8mg,／L范围内与峰面积呈良好线性关系,r=0．99977,平均回收率为99．57％,相对标准偏差为1．23％（n=5）。结论该方法操作简单、快速,可用于罗红霉素含量的测定。     

HPLC测定藏药君扎排毒养颜胶囊中大黄素、大黄酚的含量

目的 建立一种反相高效液相色谱法测定藏药君扎排毒养颜胶囊中大黄素、大黄酚含量的方法。方法 用C18ODS柱，以甲醇-0．1％磷酸溶液(85：15)为流动相，检测波长254mm。结果 平均回收率大黄素99．07％(RSD=1．16％，n=4)；大黄酚99．26％(RSD=1．23％，n=4)。结论：该方法简便、快捷、准确。     

扶芳藤多酚的微波辅助提取和含量测定

目的：从扶芳藤提取多酚，并测定其含量。方法：运用微波技术提取扶芳藤多酚，用比色法测定多酚含量。结果：测得扶芳藤中多酚含量为3．15％，平均回收率为99．94％，RSD=2．08％（n=5）。结论：首次运用微波技术从扶芳藤中提取多酚，同时测定方法简便、快速、灵敏，实验结果令人满意。     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.     

Tracking data management using topology of moving object database system for moving object constrained trajectory in LBS application

Advances in wireless technologies and positioning technologies and spread of wireless devices, an interest in LBS (Location Based Service) is arising. To provide location based service, tracking data should have been stored in moving object database management system (called MODBMS) with proper policies and managed efficiently. So the methods which acquire the location information at regular time intervals then, store and manage have been studied. In this paper, we suggest tracking data management techniques using topology that is corresponding to the moving path of moving object. In our techniques, we update the MODBMS when moving object arrived at a street intersection or a curved road which is represented as the node in topology and predict the location at past and future with attribute of topology and linear function. In this technique, location data that are corresponding to the node in topology are stored, thus reduce the number of update and amount of data. Also in case predicting the location,because topology are used as well as existing location information, accuracy for prediction is increased than applying linear function or spline function.