等浓度

Experimental results showed that such as pH value, charging ratio and method, reaction temperature and reaction time, concentration of material, assistflocculant and resting period can all influnce the alkalization degree of product.

结果表明pH值、加料方式、反应温度、反应时间、原料浓度、助聚剂、存放时间等均会影响盐基度。

This article analyses some basic conceptions that are comparatively vayue or even wrong wrong in the teaching of middle school chemistry, like the definition of chemical change, the influence of concentration on a chemical reaction , the structure of oxacid,and the acidity of sulfuric acid, the acidity of carbonic acid, and the conversion of allotropic substance.

分析了中学化学教学中的几个比较模糊甚至错误的基本概念，如化学变化、浓度对化学反应速度的影响、含氧酸的结构、硫酸的酸性、碳酸的酸性、热化学方程式的表示法、同素异形体间的转化等，并从大学化学角度加以澄清，以便使大一学生更准确地理解和掌握这些基本概念。

Chelate fiber with amidoxime group,which is obtained from chemical modification of PAN fiber,is treated with mercury nitrate to prepare anion-exchange fiber.The optimum conditions of the anion-exchange fiber absorption of the thiocyanate ion,such as ion concentration,time,the pH value were studied.

以聚丙烯腈纤维进行NH2OH化学改性制得的含有偕胺肟基的螯合纤维为原料，经Hg(NO3)2化学处理，制得阴离子交换纤维；并以硫氰酸根离子为研究对象，系统地探讨和研究了阴离子交换纤维吸附硫氰酸根离子的最佳条件参数：离子浓度、时间、pH值等。

An aminobenzene sulfonate-formaldehyde based polymer dispersant with good grinding efficiency was synthesized under alkaline condition using aminobenzene sulfonate, phenol and formaldehyde as main raw materials.

以对氨基苯磺酸、苯酚、甲醛为主要原料，采用碱性合成线路制备了具有助磨效果的氨基磺酸系高效减水剂，系统地研究了单体比例、单体浓度、交联剂用量、反应体系初始pH值、反应时间和反应温度等因素对助剂助磨效果的影响。

In this research, the spider silk from the major ampullate gland of native Nephila pilipes was collected via the forced-silking apparatus at the reeling speed of 3 m/min. The obtained silk was dissolved in hexafluoro-isopropanol. The influence of pH and temperature over the secondary structure of the silk protein in solution state was examined via Circular Dichroism. The effect of silk concentration and electrical field strength on the structure conformation of silk protein during film casting process was investigated via FT-IR. During the drying process, the increase of silk concentration and the presence of electric field tend to form β-sheet and β-turn. Finally, the dried film of silk protein was treated with different temperatures and cation solutions to study the post-treatment effects.

本研究所采用之蜘蛛丝蛋白质系取自本土品种人面蜘蛛之大囊壶腺体，以3 m/min之卷丝速度强迫取丝(forced-silking)收集蜘蛛丝，再将纤维溶於六氟异丙醇溶剂中配制成溶液，以圆二色光谱仪分析在不同 pH 值与温度条件下丝蛋白质在溶液中之二级结构变化，再将蜘蛛丝溶液以不同浓度及电场强度下乾燥成薄膜后，以傅立叶红外线光谱仪检测分析丝蛋白质在固体状态下之二级结构，最后以不同温度加温、离子溶液浸泡等条件对乾燥所得之薄膜进行后处理，并分析其二级结构之变化。

Methods: A total of 1120 samples of vaginal secretion were collected from women outpatients of Taizhou hospital. All these samples were tested for the concentrations of H2O2, sialidas, LET by Amsel method.

对妇科门诊1120例阴道分泌物进行了过氧化氢浓度、唾液酸酶、白细胞酯酶等项目及Amsel法的检测。

GC-MS or LC-MS is a kind of modern,fair chemical analytical technique,which combine higher separation ofChromatography with strong identification of Mass.It was applied in new drug research including concentration determination,impuritycheck,pharmacokinetic,anabolite analysis and so on.The paper reviews their application examples for recent years and shows itsdevelopment future.

气一质联用法和液一质联用法将色谱的高分离性能和质谱的高鉴别特点相结合，组成了较完美的现代分析技术，在新药研究的含量测定，有关物质检查、质量标准制定以及药物动力学研究的代谢物分析、药物及代谢物的体内浓度分布等试验中，成为有力的分析工具，文章综述了近年来色谱一质谱联用在以上领域的应用实例，展示了它的发展前景。

In data processing, polybasic statistics and geological statistics were combined to acquire information in concentration lining degree, structure, fabric and analogism. At the same time,anomalous boundary was determined by simulation and the quantitative evaluation method for geochemical exploration anomalies was also discussed.

在数据处理上，将多元统计与地质统计法相结合，提取浓度、衬度、结构、组构、类比等多方面的油气信息，运用模拟技术确定异常边界，并探讨了化探异定量评价方法。

METHODS: Involved in the three factors, temperature and times of extraction, concentration of NaOH solutions, to do the experiment by orthogonal design uniform design and the method of anthrone.

本文采用正交设计的方法，以硫酸蒽酮法测定总糖含量为评价指标，从提取温度、NaOH浓度、提取次数等因素入手，进行正交优化试验。

The reduction of anthrone in the absence and presence of CO_2 was studied bycyclic voltammetry. The reduction of anthrone is irreversibile process and the transfercoefficient is 0.24. The diffusion coefficient is 8.597×10~(-7) cm~2·s~(-1). The mechanismhas been proposed on the results.

考察了合成条件如支持电解质、电极材料、电解电位、电解电量和蒽酮浓度等对目标产物产率的影响，优化了电解条件。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。