化学方法

Based on the data of aerosol chemical compositions obtained at WMO GAW (World Meteorological Organization Global Atmospheric Watch) station in eastern China－Lin'An regional background air pollution monitoring station, two methods (referred as Malm method and Stelson method) that were described by Malm (Malm et al.,1994) and Stelson (Stelson and Seinfeld, 1981) were used to study the mass closure of sampled aerosols.

本文通过在WMO GAW 区域大气本底污染监测站－临安大气本底污染监测站采集的气溶胶样品的化学成分的分析结果，分别用Malm（1994）和Stelson（1981）提出的方法（分别记为Malm方法和Stelson方法）重建气溶胶质量浓度，并与称重获得的质量浓度进行对比，发现虽然Stelson和Malm方法所考虑的物质组成及所使用的化学成分个数并不相同，其计算结果略有差异，但总的来说两种方法都能较好的反映绝大部分的气溶胶质量，在实际应用中可以根据所分析的化学成分数据情况和研究的目的采用不同的质量重建方法。

Based on the data of aerosol chemical compositions obtained at WMO GAW (World Meteorological Organization Global Atmospheric Watch) station in eastern China-Lin' an regional background air pollution monitoring station, two methods (referred as Malm method and Stelson method) that were described by Malm and Stelson were used to study the mass closure of sampled aerosols.

通过在WMO GAW区域大气本底污染监测站－临安大气本底污染监测站采集的气溶胶样品的化学成分的分析结果，分别用Malm(1994)和Stelson(1981)提出的方法（分别记为Malm方法和Stelson方法）重建气溶胶质量浓度，并与称重获得的质量浓度进行对比，发现虽然Stelson方法和Malm方法所考虑的物质组成及所使用的化学成分个数并不相同，其计算结果略有差异，但总的来说2种方法都能较好的反映绝大部分的气溶胶质量，在实际应用中可以根据所分析的化学成分数据情况和研究的目的采用不同的质量重建方法。

Based on the data of aerosol chemical compositions obtained at WMO GAW(World Meteorological Organization Global Atmospheric Watch) station in eastern China——Lin'an regional background air pollution monitoring station,two methods(referred as Malm method and Stelson method) that were described by Malm and Stelson were used to study the mass closure of sampled aerosols.The inter-comparison of reconstructed aerosol masses with the gravimetric masses showed good agreements,although the tw...

通过在WMO GAW区域大气本底污染监测站——临安大气本底污染监测站采集的气溶胶样品的化学成分的分析结果，分别用Malm(1994)和Stelson(1981)提出的方法(分别记为Malm方法和Stelson方法)重建气溶胶质量浓度，并与称重获得的质量浓度进行对比，发现虽然Stelson方法和Malm方法所考虑的物质组成及所使用的化学成分个数并不相同，其计算结果略有差异，但总的来说2种方法都能较好的反映绝大部分的气溶胶质量，在实际应用中可以根据所分析的化学成分数据情况和研究的目的采用不同的质量重建方法。

There is no significouldt variation between the function of Method 1 and 3 in the indexes of digestive and absorptive function,except the effect on body weight and food intake;as well,model 2 shows no significouldt influence on the indexes besides body weight lose.1.4 ConclusionsContrast the three modeling methods,model 3 is the most obvious and steady method for the establishment of deficiency of spleen YANG.2 comparison on the efficacy of Lizhong Pills influenced by dried ginger and its different components on digestive and absorptive functions and energy metabolism2.1 ObjectivesThis research was designed to observed the different influences of Lizhong Pills formula on the models,which contains dried ginger or its main group of components(volatile oil and water solubles).It would be explored from two levels of material base,single herb dried ginger or its different components,to confirm that the whole effects of Lizhong Pills do mainly depend on its main herb dried ginger in the formula just as the traditional acknowledgement in TCM.Further more,the connotative meaning of dried ginger used as the main herb in Lizhong Pills egthe aspect of pharmacology and chemistry would be preliminary revealed.2.2 MethodsEach group of model rats of deficiency of spleen-YANG were to be duplicated by method 3 for 14 days,and be treated by corresponding drug samples for 8 days.

造模方法1对消化吸收相关药理指标的改变与造模方法3的影响相似，但对模型动物的体重和食量的影响不明显；造模方法2除能使模型动物的体重减轻外，对其他各指标均无显著影响。1.4结论对比实验采用的三种石膏-知母的给药方法，方法3的造模效果最为显著和稳定，即以每日灌胃给药，连续12天，恢复9天，是本实验证实的最有效的脾阳虚证候模型制备方法。2干姜及其不同有效部位对理中丸消化吸收功能及代谢的影响2.1目的通过对理中丸中君药干姜，以及干姜中挥发性成分和水溶性成分对理中丸主要功效影响的研究，从药味和化学成分群两个层次，证实君药干姜及干姜中的主要活性成分群对理中丸整体功效的决定性影响，以初步揭示理中丸中君药核心地位的药理学和化学内涵。2.2方法采用石膏-知母复合造模法制备大鼠脾阳虚证候模型，造模期为14天1；治疗期间各给药组分别给予治疗药物，连续给药8天。

We would like to make our students to know and master the basic way of the chemistry experiments, the use of the normal apparatus of inorganic and analytical chemistry, the character of the normal inorganic compounds and

课程的目标是使学生了解和掌握化学实验的基本方法和常见的无机与分析化学仪器的使用，了解和掌握一般无机化合物的性质以及分离提纯的方法；熟悉常见的无机化合物的制备方法，掌握测定有关重要化学常数的方法和原理；熟悉滴定分析的基本操作，掌握定量测定无机化合物的主要化学滴定的方法和原理，从而培养学生能用化学观点与方法来观察分析和解决实际问题的能力。

In addition, our works also indicate that MC-ICPMS technique shows a good potential on Re-Os isotopic measurement. 2. A new method for the determination of low Re-Os abundances and ~(187)Os/~(188)Os in a natural rock sample by MC-ICP-MS has been established in our laboratory. Rock samples were digested in inverse aqua regia in sealed Carius tube for 24 hours at 230°C, then Os was separated from the matrix by CCl_4 solvent extraction, and further purification by microdistillation.

建立了Re-Os同位素样品的化学分离和纯化方法以及MC-ICPMS质谱测定方法：岩石样品的Re和Os化学分离方法是采用Carius管溶样法，结合四氯化碳萃取以及氢溴酸反萃取的方法分离出Os，最后是通过微蒸馏的方法纯化Os；利用阴离子交换树脂的方法分离纯化Re。

In order to provide an overall understanding on the basic theory and previous researches of wood chemical rheology, the author discusses some respects on the basis of the common knowledge of deformation and flow, which served as the foundation of wood chemical rheology. These respects include the results by Stein and Tobolsky, such as the correlation between the change of polymolecular structure and stress relaxation, the classification of physical rheology and chemical rheology, the difference between the research on wood chemical rheology and other methods, as well as a kind of non\|continuous method to measure stress relaxation proposed by Tobolsky \%et al.

为了使国内木材科学界对木材的化学流变学的基础理论及其研究概况有一个比较全面的了解，作者在归纳了作为建立木材的化学流变学基础的、关于变形和流动一般理论的基础上，就Stein 和Tobolsky基于高分子构造变化与应力松弛之间的对应关系，关于物理流变学和化学流变学的分类，化学流变学研究与其他方法的不同之处，Tobolsky等关于不连续应力松弛测定方法等内容做了比较详细系统的介绍。

It was found that calcein could absorb the chemical energy of the oxidizing reaction between potassium ferricyanide and ketotifen accompanied with chemiluminescenceemission.

发现钙黄绿素可以吸收铁氰化钾氧化酮替芬反应的化学能而产生化学发光，以钙黄绿素为化学发光试剂，构建了铁氰化钾-酮替芬-钙黄绿素化学发光体系，利用此体系建立了测定酮替芬的化学发光分析新方法，方法的线性范围为2。

Methods The expression of TP and MVD was detected by immunohistochemistry method.

采用免疫组织化学方法检测 2 5 1例癌组织和相对应的 92例正常组织TP和微血管密度的表达。

Methods : Using immunohistochemical method, expression of VEGF and MVD in 50 operation cases of carcinoma of endometrium and 30 normal cases were examined.

采用免疫组织化学方法检测 50例子宫内膜癌和 30例正常子宫内膜组织中 VEGF和 MVD的表达。

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。