The sample dissolved in potassium hydroxide solution. The titration reagent I2 reacted quantificationally with arsenide. The end-point is determined by dead-stop end point.
样品以氢氧化钾溶液溶解，通过电解产生碘与亚砷酸盐定量反应，以死停终点法确定终点。
Methods: The content of Chlorogenic Acid in multiple sample of the oral liquid was assayed with High efficiency liquid chromatography by using ODS chromato bar, and under the moving phase with acetonitrile -0.4 phoshoric acid solution (13∶87), 327 nm of wavelength and 1 mL/min of rate of flow.
运用ODS色谱柱，以乙腈一0.4%磷酸溶液(13∶87)为流动相，流速1mL/min，检测波长327nm，对抗炎口服液多批样品中的绿原酸进行含量测定。
When mixed into the same carbon fiber quantity is 1.0%, differ age material's AC impedance chart is discrepancy very much, along with to hydrate age's add, C-S-H gel isa great deal of form, the solution resistance at the concrete is gradually aggrandizement, the carbon fibre of here qua transmit electricity quality disperse would leading effect of conductance, along with the add of exterior load, the transmit electricity quality of concrete is almost nothing change, till breakage, resistance change rate tempestuousness add, and that the resistance change rate along with inside stress linearity add of corbon fibre concrete in elasticity phase, when near peak value load, resistance rate just gradually add, indicate the test sample would be about to breakage.
当碳纤维体积掺量同为1.0%时，不同龄期材料的交流阻抗谱相差很大，随着水化龄期的增长，C-S-H凝胶大量形成，水泥基材料中的溶液电阻逐渐增大，此时作为导电性分散相的碳纤维将起电导的主导作用。随着外部荷载的增加，基准水泥基材料的导电性几乎无变化，直到破坏时，电阻变化率剧烈增大，而碳纤维水泥基材料在弹性阶段其电阻变化率随内部应力线性增加，当接近峰值荷载时，电阻率才逐渐增大，预示试件即将破坏。
In the silver nitrate column method, the quality of the methyl ester sample introduction of the mixed fatty acid is 0.5 percent to 10 percent of the quality of filled silver nitrate blangel; elution gradient is n-hexane solution containing acetone the content of which is 0.5 percent to 15 percent; the elution speed is 0.5 to 5ml/min.
所述的硝酸银柱法中混合脂肪酸甲酯上样质量为填充的硝酸银硅胶质量的0.5％～10％，洗脱梯度为含0.5％～15％丙酮的正己烷溶液，洗脱速度为0.5～5ml/min。
After the solution was kept in the dark for five minutes, chloroform was added into it to adsorb selenium formed by previous reaction, then iodine separated out was determined by sodium hyposulfite titration using starch as the indicator, at last the content of selenium dioxide in the sample was foun.
在溶有二氧化硒的0.4～0.5mol/L盐酸介质中，加入过量的碘化钾，于暗处放置5min后，加入三氧甲烷吸附反应生成的硒，以淀粉为指示剂，用硫代硫酸钠标准溶液滴定析出的碘，测得二氧化硒的含量。
The ice/liquid mixtures of the coolant and the sample solution were respectively added in the Dewar bottle and the sample container to precool for 2~3 hours under stirring. Then some of the coolant liquid was replaced with coolant ice, the motor stirrer was restarted, and the temperatures were read from the Beckmann thermometer.
实验时，先调节寒剂的组成使其凝固点低于待测溶液的凝固点～2℃，然后分别在保温瓶和凝固点杯中加入寒剂和待测溶液的冰水，启动搅拌器预冷却2~3小时，接着更换保温瓶中的寒剂冰水，重新启动搅拌器，记录贝克曼温度计读数。
A device for determining molar mass with freezing point depression was improved, which consists of the Dewar bottle, sample container, Beckmann thermometer, arid motor stirrer, Before the experiment, the freezing point of the coolant was controlled about 2℃ below the freezing point of the sample solution by adjusting the composition of the coolant.
介绍一个改进的凝固点下降法测定摩尔质量实验装置，它由保温瓶、凝固点杯、贝克曼温度计、电动搅拌器等几部分构成。
The ice/liquid mixtures of the coolant and the sample solution were respectively added in the Dewar bottle and the sample container to precool for 2～3 hours under stirri...
实验结果显示，改进的凝固点降低法测定摩尔质量实验装置结构合理，其测定误差可控制在±0.001℃以内。
By the method of decreasing the concentration of the sample solution and adding NaOH, both matation of pH of sodium methyl mercaptide and NaOH may be differentiated.
采用降低样品溶液浓度和添加NaOH的方法，区分了甲硫醇钠和NaOH的两个滴定突跃，分析结果令人满意。
In 0.1 mol/L NaOH solution, there was a sensitive cathodic stripping peak on voltammograms. The stripping peak potential was -0.52 V when accumulation time of IO3(superscript -) at the modified electrode was 60 s and the potential scan rate was 300 mV/s. There was a good liner relationship between the peak current and IO3(superscript -) concentration in the range of 8.0×10^(-10)~5.0×10^(-8) mol/L and 1.0×10^(-7)~3.0×10^(-6) mol/L with the correlation coefficient of 0.999 and 0.998, respectively. The detection limit was 1.0×10^(-11) mol/L. This proposed method had been applied for determination of IO3(superscript -) content for the table salt sample and the average recovery was 101.1%.
在0.1 mol/L的NaOH电解液中，当IO3在羧基化多壁碳纳米管修饰碳糊电极表面富集60 s，电位扫速为300 mV/s时，该修饰电极在线性扫描伏安图上能出现一灵敏的阴极溶出峰，峰电位为－0.52 V，峰电流与IO3浓度在8.0×10^(-10)~5.0×10^(-8)mol/L和1.0×10^(-7)~3.0×10^(-6)mol/L的范围内成良好线关系，相关系数分别为0.999和0.998，检出限可达1.0×10^(-11)mol/L；该修饰电极无汞，稳定性较好，用于加碘食盐中碘酸根含量的测定灵敏度高，平均回收率为101.1%。
Effects of the concentration of impregnation solution and impregnation time on the oxidation resistance at high temperature of the flexible graphite sample were preliminary discussed.
初步探讨了浸渍液浓度、浸渍时间对柔性石墨试片高温抗氧化能力的影响，同时考察了添加剂的加入对柔性石墨试片抗拉强度、回弹性的影响。
The conditions of solid phase extraction were optimized, including pH of sample solution, eluting solvent and elution volume.
方法对样品溶液的pH、洗脱溶剂以及洗脱体积等条件进行了优化。
The analytical parameters including pH value, sample volume, flow rate of sample solution and elution conditions (concentration, volume and flow rate of eluant) were investigated. The effect of foreign ions and the adsorption capacity of the modified peanut shell were examined.
考察了样品pH值、进样体积、流速、洗脱剂浓度、体积、流速等参数的影响，同时研究了共存离子的影响，评价了萃取材料的吸附容量及再生性能。
The invention discloses a preparing method of bacillus alcaligenes strain Alcaligenes sp., CCTCC No. M206121 of degraded o-nitrophenol, which comprises the following steps: allocating inorganic salt culture medium with dibasic sodium phosphate, monobasic potassium phosphate, manganese sulfate, copperas, addex-magnesium, calcii chloridum, blue copperas, white copperas and hydrogen dioxide solution; adjusting pH value; sterilizing under high temperature; enriching bacterial; sampling from sludge; allocating suspending liquid with soil sample and inorganic salt; seeding into ortho-nitrophenol fresh organic salt culture medium with finite volume seeding quantity; keeping the temperature; culturing on shaker; getting enriched culture; separating and purifying enriched culture in LB solid culture medium.
本发明公开了一种降解邻硝基酚的产碱杆菌菌株及制备方法，产碱杆菌为Alcaligenes sp。，CCTCC No.M206121。其制备步骤是：首先是配制无机盐培养基，成分为磷酸氢二钠、磷酸二氢钾、硫酸锰、硫酸亚铁、硫酸镁、氯化钙、硫酸铜、硫酸锌和双蒸水，调pH值高压灭菌；其次是菌种的富集，从污泥中取样，将土样与无机盐培养基配制成悬浮液，将悬浮液以一定体积接种量接种到含邻硝基酚的新鲜无机盐培养基中，恒温，摇床培养，获富集培养物；第三是将富集培养物在LB固体培养基中分离和纯化。
2 The analysis step by 125mL separatory funnel, a fartoo 0.1mL cadmiun forcultivation added liquid (equivalent 1 μ g cadmiun) and 50mL acetate (4%), and the other one is to join the 50.0mL sample lixivium, separatory funnel and 2mL in the seignette solution, -amoxycillin sodium hydroxide solution and potassium cyanide-2mL hydroxylammonium hydrochloride solution, each adding a reagent shake after.
9.2.2 分析步骤取125mL分液漏斗两只，一只加入0.1mL镉标准使用液(相当1μg镉)及50mL乙酸(4%)，另一只加入50.0mL样品浸泡液，分别向分液漏斗中各加2mL酒石酸钾钠溶液，10mL氢氧化钠－氰化钾溶液及2mL盐酸羟胺溶液，每加入一种试剂后均须摇匀。
The herbicides in the sample was extracted with ethyl acetate. The extract was decanted into a flask through a filter paper, then the filtered solution was concentrated to dry. The dry sample was dissolved and added to 5 mL with acetone-n-hexane (30:70, V/V). It was cleaned up by Florisil, concentrated again. The sample was dissolved and adjusted to 1mL with acetone.
匀浆后的草莓试样用乙酸乙酯进行提取，提取液经滤纸过滤后收集，再浓缩蒸干，用丙酮：正己烷(30：70，V/V)溶液溶解至5ml，经Florisil固相萃取柱净化，吹干后用丙酮定容，供气相色谱－质谱联用仪进行测定。
Was produced by my addin tool against a sample Oracle XE database and is included with the demo solution.
我的制作一个样本对甲骨文数据库XE版插件的工具，并与演示解决方案中。
Or cytologic examination, the samples were prepared using standard techniques. Sample for FCM analysis were centrifuged and exposed to hypotonic solution cotaining detergent and propidium iodide. Thirty-eight patients had pleural effusion due to benign disease, whilst 33 patients had primary lung cancer. All 38 patients with benign pleural effusions showed FCM diploidy.
CM之DNA定量法是测定细胞是否为不正常DNA含量，其染色是用propidium iodide染色，临床细胞诊断法是用Dapanicolaou染色方法，其中38位病例之胸水原因是良性病变，33位胸水病例则有原发性肺癌，38位良性胸水病例之FCM DNA定量结果全部为正常含量。
C blowing air into solution according to a certain flow rate by means of aeration mode, oxidating and breaking sulfocarbon bond, removing organic sulfur from coal, finally filtering treated coal sample and recovering alkaline solution and using it to treat the subsequent coal sample.
本发明在碱性溶液条件催化下，采用低温空气氧化的方法可以高效脱除煤中的有机硫，同时对无机硫的脱除也取得了比较好的处理效果，处理条件温和、处理费用低，同时不会对环境形成二次污染。
The disinfection solution containing chlorine dioxide 1mg/L caused reduction of coli-group count in water sample to 0 cfu/100ml. The water temperature, organic substances and pH value had certain influence on germicidal efficacy of chlorine dioxide in drinking water.
含二氧化氯1mg/L的消毒液使水样中大肠菌群数下降至0cfu/100ml，水温、有机物和pH值均对饮用水中二氧化氯杀菌效果有一定影响。