吴茱萸HPLC指纹图谱的建立及3种成分含量的测定

[目的]建立吴茱萸(FRUCTUS EVODIAE)药材的指纹图谱,并对吴茱萸药材中绿原酸、金丝桃苷和吴茱萸碱进行同时测定.[方法]HPLC条件为:Hypersil C<,18>色谱柱(250.0 mm×4.6 mm,5 μm);流动相为乙腈-1%乙酸水溶液,梯度洗脱;流速为1.0 ml/min;检测波长为270nm;进样量为10μl.[结果]不同产地的吴茱萸药材指纹图谱共有19个共有峰,共有峰相对保留时间RSD值小于2.50%,相对峰面积RSD值为2.10%.整体来看,江西栽培的吴茱萸药材中绿原酸、金丝桃苷和吴茱萸碱含量要高于贵州、云南等地吴茱萸药材.[结论]该研究首次建立了吴茱萸药材的指纹图谱并同时测定了吴茱萸药材中的绿原酸、金丝桃苷和吴茱萸碱含量,为不同产地、不同采收期吴茱萸药材的质量评价提供了更好的技术手段.     

HPLC法测定六味地黄丸熊果酸的含量

[目的]用高效液相色谱(HPLC)法测定六味地黄丸(浓缩丸)的熊果酸含量,提高熊果酸的质量控制标准.[方法]色谱柱:Welch Materials AQ-C18柱(5 μm,4.6 mm×250.0 mm);流动相:乙腈-水-磷酸(V:V:V=90:10:0.1);柱温:25 ℃;流速:1.0 ml/min;检测波长为210 nm.[结果]在0.457 6～1.542 3 μg/ml的线性范围内,熊果酸与峰面积呈良好的线性关系,平均回收率为99.31%,RSD值为1.09%(n=6).[结论]高效液相色谱法灵敏、简单、快速、准确,适用于六味地黄丸(浓缩丸)熊果酸含量的测定.     

反相高效液相色谱法同时测定香椿果中3种酚性化合物

[目的]建立了同时测定香椿果提取物中没食子酸、没食子酸甲酯、1,2,3,4,6-五-O-没食子酰-β-D-葡萄糖3种酚性化合物含量的方法.[方法]采用Hypersil C<,18>色谱柱(6.0 mm×150.0 mm,5 μm),流动相为甲醇-0.1%甲酸,以1.0 ml/min流速为进行梯度洗脱,柱温为30℃,检测波长为280 nm,外标法定量.[结果]没食子酸、没食子酸甲酯、1,2,3,4,6-五-O.没食子酰-β-D-葡萄糖分别在0.048～0.480、0.018～0.180和0.022～0.220 μg之间线性关系良好(r≥0.999 8),平均加样回收率分别为101.6%、99.5%和99.1%,RSD值≤2.9%.[结论]该含量测定方法简便、准确、分离效果好,可用于香椿果中的酚性成分含量的测定.     

不同地区灯盏花总黄酮与野黄芩苷含量比较

[目的]比较不同地区灯盏花中总黄酮与野黄芩苷的含量.[方法]采用紫外分光光度计法测定灯盏花总黄酮含量,以高效液相色谱法测定野黄芩苷含量.[结果] 试验地区灯盏花野黄芩苷含量在1.053%～2.628%,昭通巧家落山所产的灯盏花野黄芩苷含量最高;总黄酮含量在8.845%～15.757%,腾冲芒棒乡1所产的灯盏花总黄酮含量最高.[结论] 不同地区灯盏花的总黄酮与野黄芩苷含量均存在差异.     

金樱子中芦丁和槲皮素不同提取方法的比较研究

[目的]研究不同提取方法对金樱子(Rosa laevigam Michx)果实芦丁和槲皮素提取的影响,为金樱子(FRUCTUS ROSAE LAEVIGATAE)药材的合理开发利用提供科学依据.[方法]采用热水浸提、乙醇回流和乙醇超声波辅助法提取金樱子果实中芦丁和槲皮素,用HPLC法测定含量,并进行方法学考察.[结果]HPLC法测定中芦丁和槲皮素能较好地分离,分别在0.03～15 μg/ml(r=0.999 0)和0.04～20 μg,/ml(r=0.999 4)的浓度范围内与峰面积成良好线性关系,检测限分别为12.6和15.2 ng/ml.3种提取方法得到的芦丁和槲皮素趋势为乙醇超声波辅助法>乙醇回流>热水浸提,分别为芦丁0.62、1.04和1.52 μg/ml;槲皮素0.78、1.18和2.24 μg/ml.[结论]乙醇-超声波提取法的效果较好.     

复方参芪五味咀嚼片的质量标准研究

[目的]研究控制复方参芪五味咀嚼片的质量标准的方法.[方法]采用薄层色谱法鉴别复方参芪五味咀嚼片中的人参皂苷Rg<,1>(人参)、五味子醇甲(五味子)和黄芪甲苷(黄芪)、麦冬药材;采用高效液相色谱法样品中人参皂苷Rg<,1>、五味子醇甲和黄芪甲苷含量进行测定.[结果]在选择的薄层色谱条件下,各样品斑点显色清晰;复方参芪五味咀嚼片中人参皂苷Rg<,1>、五味子醇甲和黄芪甲苷分别在2.5～17.5、2.4～12.0、4.6～32.2 μg/ml的线性范围内,与峰面积线性关系良好.人参皂苷Rg<,1>、五味子醇甲和黄芪甲苷的平均加样回收率分别为98.1%、97.2%、97.7%,RSD值分别为2.O%、1.4%、1.2%.[结论]所建立的方法准确、重现性好,可以作为控制复方参芪五味咀嚼片的质量标准的方法.     

大黄药材中大黄苷元含量测定

[目的]采用HPLC法测定不同产地的大黄药材中5种蒽醌苷元的含量.[方法]HPLC色谱条件为:色谱柱为Diamonsil C<,18>柱(5μm,250.0 mm x 4.6 mm);流动相为甲醇-0.05%磷酸水溶液(V:V=85:15);流速为1 mL/min;检测波长245 nm;进样量为20 μl.[结果]大黄各苷元线性关系良好,平均回收率为97.55%～100.87%,RSD值为1.38%～2.47%.大黄药材中各苷元含量范围分别为:芦荟大黄素0.26%～0.52%,大黄酸0.21%～1.47%,大黄素0.26%～0.40%,大黄酚0.29%～1.95%,大黄素甲醚0.48%～2.72%.[结论]该方法精密度良好、重现性、稳定性好,适合大黄药材中各大黄苷元的质量控制.     

黄芪药渣中黄芪甲苷含量的测定

[目的]测定黄芪药渣中黄芪甲苷的含量.[方法]用高效液相色谱法,HPLC条件:Agilent Zorbax XDB-C<,18>(4.6 mm×150.0 mm,5μm)色谱柱,流动相为乙腈-水(35:65,v/v),流速1.0 ml/min,检测波长203 nm,柱温30℃,进样量10μl.[结果]黄芪甲苷在0.23-2.3μg/ml范围内与峰面积线性关系良好(r=0.999 9),平均回收率为99.00%,RSD值为2.00%(n=9),黄芪药渣中黄芪甲苷含量为0.74 mg/g.[结论]该方法快速、简便,黄芪药渣仍有较大的再利用价值.     

大叶金花草总黄酮提取物的抗菌活性研究

[目的]研究大叶金花草(HERBA et RHIZOMA STENOLOMA CHUSANAE)总黄酮提取物的抗茼活性.[方法]采用牛津杯法测定大叶金花草总黄酮提取物抗大肠杆菌(Escherichia coil)、枯草芽孢杆菌(Bacillus subtilis)和酿酒酵母(Saccharmoyces cervisiae)的活性.[结果]大叶金花草总黄酮浓度高于0.384 mg/ml时,其对大肠杆菌和枯草芽孢杆菌均有一定的抑制作用,特别是对后者;但浓度低于0.384 mg/ml时,其对这2种菌均无抑制作用;大叶金花草总黄酮提取物对酿酒酵母没有抑制作用.[结论]大叶金花草总黄酮具有一定的抗菌活性.     

HPLC法测定棉团铁线莲中齐墩果酸的含量

[目的]采用HPLC法测定棉团铁线莲(Clematis hexapetala)根及茎叶中齐墩果酸含量,为进一步开发棉团铁线莲药用资源提供理论依据.[方法]色谱柱为YW-C18柱(4.6 mm×150.0 mm,5 μm); 流动相为甲醇-水(V∶V=90∶10);检测波长为220 nm;进样量为10 μl;流速为1.0 ml/min;柱温为25 ℃.[结果]棉团铁线莲根中齐墩果酸的含量为0.175 2%,茎叶中齐墩果酸的含量为0.096 3%.[结论] 该方法简单、快速、准确,可用于棉团铁线莲中齐墩果酸的含量测定;同时该研究为评价棉团铁线莲茎叶的药用价值提供了参考,为进一步开发棉团铁线莲药用资源和质量控制提供了科学依据.     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.     

Quality of life of relatives of mental patients

Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.