查询词典 hydrochloric

Chinese chestnuts of Qianxi were dealed with by wet method and the determination of the content of Se in chestnuts was discussed on the influence of the proportion of nitric acid and the perchloric acid. In the system of ferricyanide potassium and hydrochloric acid, the determination conditions were optimized by standard-curve method and quantitative analysis was acquired.

采用湿法处理河北迁西板栗样品，探讨了硝酸与高氯酸的配比对板栗中硒元素含量测定的影响，在铁氰化钾－盐酸体系中，对测定条件进行了优化，采用标准曲线法定量分析。

The ester was hydrolyzed by reaction with concentrated hydrochloric acid, which afforded flavin 7 in 85% yield in a 3:2 ratio of the 7- and 8-regioisomers.

该酯水解反应与集中盐酸，可提供黄素7日在85 ％，产量在1 3：2的比例， 7 -8 - r egioisomers。

In the presence of NaH and in DMF, the acyclic crown ethers 1a and 1b were synthesized by the reaction of di-or triethyleneglycol ditosylate and o-methoxymethoxybenzyl alcohol, which was obtained from salicylaldehyde via the protection of the hydroxyl group with chloromethyl methyl ether followed by the reduction of the formyl group with NaBH4. The hydrolysis of 1a and 1b with dilute hydrochloric acid provided the diphenolic type acyclic crown ethers 2a and 2b respectively in good yield.

将水杨醛与碱和氯甲基甲基醚反应，再经过NaBH4还原，即制得邻苯甲醇，然后将其在DMF中与NaH和二甘醇二对甲苯磺酸酯反应，得开链冠醚1a和1b.1a和1b经稀酸水解，即脱保护而分别生成新的酚型开链冠醚2a和2b。

The method is based on the diazo-reaction between nitrite ion and fuchsin acid in a hydrochloric acid medium.

研究了在酸性介质中，NO2-与酸性品红发生重氮化反应，致使酸性品红的荧光强度随NO2-加入量增加而明显降低的现象，建立了荧光熄灭法测定痕量NO2-新方法。

The root tips were dissociated with 1 mol/L hydrochloric acid for 15 min at room temperature and then were stained with the modified phenol fuchsin staining solution, usually staining for about 10 min could get better dyeing effect.

室温下用1mol/L盐酸解离根尖15min，然后用改良的石炭酸品红染液进行染色，通常染色10min左右即可达到较好的染色效果。

Methods: In the presence of hydrochloric acid or nitric acid, geranyl sulfone was prepared from geraniol in isopropyl alcohol or THF under reflux conditions for 18 h or 28 h, respectively.

以异丙醇或THF为溶剂，盐酸或硝酸为催化剂，香叶醇与苯亚磺酸钠回流反应18或28 h得香叶基砜。

In the meantime, reporter discovery, at the beginning of this year September, the food of the function of health care of 2009 year designation that office of commission of safety of food of city of hill of copper of the Anhui province releases and health food sampling observation are unqualified in list," clear fat lotus root of 3 days of " because goosefoot seed capsule reducing weight is illegal add " hydrochloric acid Xibuquming " and rank among them.

同时，记者发现，今年9月初，安徽省铜陵市食品安全委员会办公室发布的2009年度标示保健功能的食品及保健食品抽检不合格名单中，"清脂三天"藕藜籽减肥胶囊因非法添加"盐酸西布曲明"而名列其中。

Camphor oil was abstracted from the greenheart leaf by the steam-distil method and used as main component of corrosion inhibitor for hydrochloric acid cleaning .

用水蒸气-蒸馏法从樟树叶中提取桉叶油；并将其作为盐酸酸洗缓蚀剂的主要成分，用正交实验法优选了复合缓蚀剂配方；采用线性极化法评价缓蚀剂的缓蚀效率，并对其缓蚀机理进行了初步探讨。

The characteristics of five different phosphinic impregnated resins adsorbing heavy rare earth elements in hydrochloric acid are studied by static method.

利用静态法研究了5种不同膦类萃取剂的浸渍树脂在盐酸介质中对重稀土的吸附行为。

The ideal activation process parameter as follow: The nickel sulfate hexahydrate concentration 15g·L~(-1);The Sodium borohydride concentration 15g·L~(-1); The Sodium hydroxide concentration 10-15 g·L~(-1);Hydrochloric acid concentration 10-15 g·L~(-1);The activation time in A solution 9min, the activation time in B solution 90s.

理想的活化工艺参数为：硫酸镍15g·L~(-1)，硼氢化钠15g·L~(-1)，氢氧化钠10-15 g·L~(-1)，盐酸10-15 g·L~(-1)，A液中活化的时间控制在9min左右为最佳，B液中活化的最佳时间为90s。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。