磺酸

Results showed that after polymerization and calcination, needle coke with big lamellar fiber was formatted by the addition of FeCl3 and paratoluenesulfonic acid as well as hexamethylenetetramine.

结果表明：向煤沥青中添加氯化铁（FeCl3）或对甲苯磺酸和六次甲基四胺后，经聚合煅烧生成大片层纤维的针状焦。

In order to reduce the corrosion of acidic paint stripper to aeronautical metals and provide with better anti-corrosion additive for AIL4130, TC4, LY12, and 20(superscript #) steel, a series of inhibitors and their composite were investigated. Weight loss experiment, Tafel curves measurement and SEM observation were carried out for the above metals in the formic acid solution which was normally used in the paint stripper. The experimental results indicate that the optimizing composite inhibitor consists of sodium benzoate, 2-thiourea, hexamethylenetetramine, sodium laurylsulfonate and 1, 2, 3-benzotriazole.

为降低酸性脱漆剂对飞机金属材料的腐蚀，以脱漆剂中经常使用的甲酸水溶液为研究介质，以AIL4130、TC4、LY12、20钢等材料为研究对象，通过腐蚀失重法、塔菲尔曲线测量和SEM观察，筛选出对以上各金属材料缓蚀效果较好的复配缓蚀剂体系，即苯甲酸钠、硫脲、六次甲基四胺、十二烷基磺酸钠、苯并三氮唑等缓蚀剂的优化组合。

A novel and simple spectrophotometric method for determination of hydroquinone with 1,2-naphthoquinone-4-sulfonate reagent was developed.

建立了用1，2-萘醌－4-磺酸钠分光光度法测定对苯二酚的新方法。

Objective It is to observe the curative effect and safety of Tropisetron Mesylate on nausea, vomit and inappetence induced by cisplatin.

目的 观察甲磺酸托烷司琼对顺铂引起的恶心、呕吐、食欲不振的疗效和安全性。

If the ratio of Cu 2+ to In 3+ is constant, the total concentration of ions showed inappreciable influence on film morphology. The result shows that lauryl sodium sulfate and sodium benzenesulfinate as ideal additives can make the films more flat and smooth.

此外， 在镀液离子低浓度范围内，及Cu/In离子浓度比不变的前提下，镀液中金属离子总浓度的改变不会影响镀层的成分和形貌；十二烷基硫酸钠和苯亚磺酸钠可作为理想的辅助添加剂，能改善薄膜形貌，使其表面均匀、规整。

The effect of contact time on the interfacial tension of alkali /surfactants/crude oil system was studied.

研究了接触时间对NaCl/碱/重烷基苯磺酸盐/大庆原油体系界面张力的影响。

The influence of pre-contact time on the interfacial tension of alkali /surfactants/crude oil system is studied.

研究了预接触时间对NaCl/碱/重烷基苯磺酸盐/大庆原油体系界面张力的影响。

A reversed phase ion-pair high performance liquid chromatographic method was developed for the simultaneous determination of nicotine and cotinine in human hair.

以庚烷磺酸钠为离子对试剂，建立了同时测定头发中尼古丁和可天宁含量的反相离子对高效液相色谱方法。

The combination of ion-pair extraction technology with reversed-phase ion-pair chromatography method provide a effective inspection measure for the sulfonates in water.

样品的四丁基溴化铵和二氯甲烷离子对萃取方法与反相离子对色谱分离联用，为水体中芳香族磺酸盐的检测提供了可靠的监测手段。

As shown by the result, the biomass and astaxanthin content of oceanic red yeast was reduced due to the presence of β-ionone which inhibited the synthesis of carotenoids. The lethality rate of oceanic red yeast would attained 92.3% if 370 mg/L of the β-ionone concentration was contained in the plate medium. The oceanic red yeast mutated by ethyl methane sulfonate was cultured on plate medium containing 370 mg/L of the β-ionone. 200 mutants were randomly screened, positive mutants with increased the biomass, astaxanthin volumetric yield and astaxanthin specific yield accounted for 18% of the total strain, the mutants with higher biomass, astaxanthin volumetric yield and astaxanthin specific yield higher occupied 22.5%, 45% and 46%, respectively.

实验结果表明，在β-紫罗兰酮存在的情况下，由于类胡萝卜素合成受到抑制，海洋红酵母的生物量和虾青素合成量都减少；当平板培养基中β-紫罗兰酮浓度达到370 mg/L时，海洋红酵母的致死率为92.3%；在这种平板培养基上涂布经甲基磺酸乙酯诱变的海洋红酵母，随机筛选200个菌落，结果表明生物量、虾青素体积产率和细胞产率均有所提高的正突变株占18%，生物量、虾青素体积产率和细胞产率的单项指标有所提高的正突变株分别占22.5%、45%和46%。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。