浓度测定

The kinetic mechanism of extraction reaction and the influence of isobutyl alcohol on the extraction rates of uranium with TOA are examined.

测定了三辛胺浓度、硫酸浓度、温度和异丁醇对萃取速率的影响。

By the quantitative analysis of flavonoids from the extract under acid hydrolysis condition, it is demonstrated that the level of isoquercitrin degrades along with the content of hydrochloric acid elevating and the level of kaempferol is reverse. Those reveal that there exist flavonoid conjugates whose aglycone is kaempferol in the leaves.

对青钱柳酸水解液中成分的测定表明，随着酸浓度的提高，异槲皮苷的含量下降，槲皮素的含量上升，山奈酚的含量也随酸浓度上升而增高，表明青钱柳中尚有以山奈酚为苷元的黄酮苷存在。

Results: Within-run CV 、day-to-day CV and total CV were 1.33%、1.42% and 2.01% respectively by iterant test; average recovery rate was 96.6%; anticoag-ulant、septic、uric acid and bilirubin under a certain concentration also did not interfere with the glucose re-sult in this method. Compared with HK method, the pertinence was Y =1.038X-1.172,r =0.994. The linearity studies showed the method was linear up to 20mmol/L.

结果： 重复性试验批内 CV 值为1.33%，批间CV 值为1.42%，总 CV 值为2.01%；回收试验中回收样品I、Ⅱ、Ⅲ的回收率分别为105%，93.5%和91.4%，平均为96.6%；干扰试验表明一般浓度的抗凝剂、防腐剂、尿酸、胆红素对葡萄糖的测定不产生干扰；比较试验，与HK法比较其相关性为Y =1.038X-1.172，r =0.994；线性范围试验表明葡萄糖浓度在20 mmol/L以下呈现良好的线性。

Results: Within-run CV 、day-to-day CV and total CV were 1.33%、1.42% and 2.01% respectively by iterant test; average recovery rate was 96.6%; anticoag-ulant、septic、uric acid and bilirubin under a certain concentration also did not interfere with the glucose re-sult in this method.

结果： 重复性试验批内 CV 值为1.33%，批间CV 值为1.42%，总 CV 值为2.01%；回收试验中回收样品I、Ⅱ、Ⅲ的回收率分别为105%，93.5%和91.4%，平均为96.6%；干扰试验表明一般浓度的抗凝剂、防腐剂、尿酸、胆红素对葡萄糖的测定不产生干扰；比较试验，与HK法比较其相关性为Y =1.038X-1.172，r =0.994；线性范围试验表明葡萄糖浓度在20 mmol/L以下呈现良好的线性。

The expression changes of relating-apoptosis gene proteins (bcl-2, bax) were detected by immunohistochemistry before and after treating with the Agaricus Blazei Murill extract to explore the possible mechanisms of inducing apoptosis for MGC-803 cells in vitro. Results: The Agaricus Blazei Murill extract significantly inhibited the proliferation of gastric cancer cells in vitro and the inhibitive effects were depended on the medicine concentration and treating times. After treating 24 hours on the gastric cancer cells with the morphologic changes of apoptosis with chromatin margination, karyopyknosis, karyorrhexis were found by the light.

结果：(1)通过细胞培养和MTT法，表明长白山姬松茸在体外对MGC-803细胞株有明显的抑制作用，加药组与对照组相比其生长抑制率有显著性差异(P＜0.01)，而且这种抑制作用呈现浓度和时间的依赖性；(2)通过集落形成率的测定结果表明，加药组与对照组相比其集落形成率和集落形成抑制率有明显差异(P＜0.01)，说明长白山姬松茸对MGC-803胃癌细胞株有明显抗增殖作用；(3)光镜观察结果表明，加药组可见细胞脱水浓缩伊红染色增强，胞体缩小，内含高度浓缩的胞核呈深蓝色等典型细胞凋亡形态；经AO／EB荧光染色观察结果表明，当终浓度为1.0mg／ml的姬松茸提取物作用于MGC-803胃癌细胞24h后，其凋亡率和破膜率与自然凋亡率与破膜率相比，均有显著性差异，其凋亡率86.3％(P＜0.001)，破膜率为41.6％(P＜0.01)，说明姬松茸确实有诱导MGC-803胃癌细胞凋亡的作用，同时也有细胞毒作用，但以诱导细胞凋亡为主；(4)免疫组化结果表明，用药前后凋亡相关基因的BCl-2、Bax蛋白均有显著性的改变(P＜0.001)。

By determining the extract to the chicken embryo's maximum lethal concentration and hemagglutination. By different medicine liquor concentration direct action in virus, inoculate embryo determine the change of virus titer, found that all 8 compoundings have the effect of antivirus, and Mahuang is the essential component.

测定提取液对鸡胚的最大致死浓度和对红细胞的凝集作用；以药液的不同浓度直接作用于病毒，接种鸡胚检验病毒滴度的变化，观察发现8种配方都有抑制病毒的作用，其中麻黄是发挥抗病毒作用的主要成分。

On the basis of that result, the fluorine concentration of drinking water, main food stuff and urine of local adults of some participated cities were tested, and the meteorologic data and living conditions and etc of the cities were also collected in this study.

在这个基础上，作者对其中一些城市的饮水氟浓度、主要食品氟含量和成人平均尿氟浓度进行了测定，对当地的气候、生活状况等资料进行了系统的收集和整理。

The determination of the concentration of SPLX is simple,cheap,sample saving,high precision by the microbiologic assay.

用微量微生物法测定SPLX血药浓度，操作简便，成本低廉，样品用量少，精密度高，适用于体内药物浓度监测。

The decisive influencing factor of viscosity in carboxyl-methylation was cross-linking reaction. Carboxyl-methylation was the main influencing factor of solubility and swelling capacity in modification of high content amylose starch. The structure and gelatinization property of different amylose content were analyzed with an Olympus Vanox BHS-2 multi-function optic microscope, and the results were as follows. The structure of ordinary cornstarch was different from the high amylose; gelatinization temperature and pH value of starch were affected deeply by amylose content, but had little difference between the gelatinization of high content amylose starch contained 50% and 70% amylose; pH value had much more effect than temperature on the gelatinization of high content amylose cross-linked starch. Monochloroacetic acid consumption, alcohol concentration and pH value influenced the starch carboxyl-methylation. When alcohol concentration was 60%, pH value 10, monochloroacetic acid/starch mass ratio 55%, the carboxyl-methylation of high amylose cross-linked cornstarch had the best result. With the In-Vitro digestibility model and biodegradation experiment, the digestibility and biodegradability of high amylose cornstarch and its modified starch were detected.

采用Brabande粘度测定仪和Olympus Vanox BHS-2型多功能光学显微镜等分析手段对链淀粉含量50％和70％的高链玉米淀粉及其交联和交联羧甲基化淀粉的结构和性质进行了表征和分析，结果表明，普通玉米淀粉结构与含链淀粉50％和70％高链玉米淀粉结构不同；高链淀粉比普通淀粉难糊化，高链改性淀粉糊化受pH值影响较大，受温度影响较小；淀粉的冻融稳定性、透光率、溶解度、膨胀度和粘度受链淀粉的含量和改性的影响，但是，链淀粉含量超过50％时，则链淀粉含量对淀粉的膨胀度和溶解度影响不大；改性淀粉性质的影响因素中，影响粘度主要因素是交联反应，影响透明度、溶解度和膨胀度主要因素是羧甲基化改性；一氯乙酸用量、反应时乙醇浓度及碱性条件都会影响高链淀粉及其交联淀粉的羧甲基化改性效果，制备羧甲基化改性淀粉的最佳工艺是在pH值为10的60％的乙醇浓度介质中按一氯乙酸/淀粉质量比为55％进行取代反应。

Methods The flavonoids from extracts of morus folium in different concenration (0.001,0.01,0.1 g/L) were added to a glycosylation system in vitro,and incubated for 1,4,7,14,21 ,28 days respectively,then the early glycasylation products were measured.

方法从桑叶中提取不同浓度(0 0 0 1，0 0 1，0 1g/L)总黄酮加入体外白蛋白糖基化体系中，分别孵育 1，4 ，7，14 ，2 1，2 8天，测定早期糖化白蛋白产物的浓度。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。