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氢氧化钠

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In the presence of 0.10 molar equivalent of salicylaldehyde, L-lysine racemization can be completed within 4 h in 1.0 mol/L of NaOH at 100℃.

在在场的0.10摩尔相当于水杨醛, L -赖氨酸消旋可以完成4小时,在1.0 mol / L的氢氧化钠在100 ℃。

The effects of NaOH amount and reaction time on the phase and particle size were discussed.

讨论了氢氧化钠的用量和反应时间对相和颗粒大小的影响。

Sodium hydroxide in order to enable complete saponification Handmade Soap after making necessary to place one to two months Time to complete saponification.

为了使氢氧化钠完全皂化,手工皂制作后必需放置一至两个月的时间来完全皂化。

NaOH addition can raise the level of sorbent reactivity and reduce the sorbent cost in a semidry or dry FGD process.

添加氢氧化钠可以提升吸收剂之反应性,并且可降低半乾式或乾式烟道气除硫程序的成本。

By silver nitrate solution and the role of sodium hydroxide solution obtained.

由硝酸银溶液与氢氧化钠溶液作用制得。

Nanometer sized needle like and spherical shaped zinc oxide was prepared by using single step hydrolysis method directly,zinc chloride and sodium hydroxide as raw materials.

以氯化锌和氢氧化钠为原料,采用直接水解一步法制备了针状和球形纳米氧化锌。

By synthetically analysizing the physical and chemical properties of all components and particle size, the content of F2641 in the JOB-iC is determined by gravimetric analysis after F2641 is seperated from HMX,TATB and PNP through ? alkali reflux. Determination conditions is set as follows the sample is boilingly refluxed for six hour in a constant temperature bath after adding lOOm! 8.0 ?? 0.1% NaOH. The solvent DMF saturated by TATB is used for extracting HMX,F21 and PNP from the sample and TATB is seperated by crucible filter G4. The mass precent of TATB is determined by extraction fractionation. The mass percent of PNP is measured by multiwavlength linear regression ultraviolet spectrophotometry. The testing conditions are set as follows:multiwavlength constitution: X=267nxn, 275nm, 283nm, 29mm, 299nm,the application scope of the Lambert-Beer law: the concentration of PNP is O.005?0.O25mgIml, the concentration of HMX is 0.060.3Omg/ml,absorption coefficents of PNP and HMX are solved by the slope of linear regression curve of absorbency- concentration of standard solution of PNP and HMIX for measuring wavelengthes,on the basis of the Lanibert-Beer law and absorbancy additivity principle, the slope of linear regression curve of A/E(1) and E1 of PNP and HMX solution is regarded as the concentration of PNP in the solution.

根据传爆药中各组分的物理、化学性质及主体炸药的粒度大小,进行综合分析,确定了采用碱回流重量法测定JOB-1C 中F_(2641)的含量,测定条件:加入100ml浓度为8.0±0.1%的氢氧化钠,在恒温水浴中煮沸回流6h;采用溶剂萃取法测定JOB-1C中TATB的含量,选择TATB饱和的二甲基甲酰胺为萃取溶剂,用G4坩埚式过虑器进行萃取分离;采用多波长线性回归紫外分光光度法测定JOB-1C中PNP的含量,通过实验确定了多波长组合:λ=267nm,275nm,283nm,291nm,299nm;朗波—比耳定律的适用范围为PNP浓度:0.005~0.025mg/ml,HMX浓度:0.06~0.30mg/ml;在测定波长下,对PNP、HMX标准溶液的吸光度—浓度进行线性回归,由回归曲线的斜率得出PNP、HMX的吸收系数;根据朗波—比耳定律和吸光度加和性原理,在测定波长下,对PNP、HMX 两组分混合溶液A_i/E_HMX(i与E_PNP(i/E_HMX(i进行线性回归,回归曲线的斜率即为混合溶液中PNP的浓度。

You can also add softener; the typical softeners are sodium bicarbonate and sodium hydroxide.

也可采用加入软化剂方法,常用的软化剂为碳酸氢钠和氢氧化钠

The background electrolyte was a 75 mmol/L sodium borate solution adjusted to pH 9.7 with 0.1 mmol/L NaOH solution. The detection wavelength was 228 nm and a voltage of 14 kV was applied. The Forsythia suspensa Vahl was extracted by water and a set of CEFP containing 29 peaks was obtained.

中文内容:摘要:采用毛细管区带电泳法,以75 mmol/L硼砂溶液(用0.1 mmol/L氢氧化钠溶液调pH 9.7)为背景电解质,运行电压14 kV,检测波长228 nm,重力进样15 s(高度9 cm),建立了连翘药材的毛细管电泳指纹图谱。

The capillary electrophoresis fingerprints of Fructus Forsythiae was established to control its quality. The background electrolyte was a 75 mmol/L sodium borate solution adjusted to pH 9.7 with 0.1 mmol/L NaOH solution. The detection wavelength was 228 nm and a voltage of 14 kV was applied. The Forsythia suspensa Thunb.

采用毛细管区带电泳法,以75 mmol/L硼砂溶液(用0.1 mmol/L氢氧化钠溶液调pH 9.7)为背景电解质,运行电压14 kV,检测波长228 nm,重力进样15 s(高度9 cm),建立了连翘药材的毛细管电泳指纹图谱。

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What would he tell Judith and the children?

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I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我,一个心中布满虚荣的女孩子真实的想法。

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