The acidity control problem of de-masking reaction in complexometric titration was presented theoretically in the paper, and simple calculation method was also provided. 从理论上对配位滴定时解蔽反应的酸度问题进行了探讨,并提出了简便的计算方法。
The common problem of acidity-rising has been the major cause which results in the worse of fire-resistant fluid, especially lack of the treatment experience on condition that the acidity is several times over the control standard. 抗燃油使用中较普遍地发生酸值升高现象,成为抗燃油劣化的主要原因,尤其对数倍于酸值控制标准的高酸值情况目前仍缺乏处理经验。
The thesis investigated the effect of acidity on zinc level and control of zinc level in the process of substitution and refining indium. 研究了在铟生产中的置换过程和电解精炼过程中的酸度对锌含量的影响,以及锌含量的控制。
Calculating the acidity coefficient of phosphorus furnace slag and its control 磷炉渣酸度系数的计算与控制
Influence of complexes and acidity control on electrokinetic processes of soil chromium 络合剂和酸度控制对土壤铬电动过程的影响
After dissolving the sample, the masking agent is added by means of solution acidity control so as to eliminate the glitch of the coexisted ions. 样品消解后,利用控制溶液酸度的办法加入掩蔽剂以消除共存离子的干扰。
Study on acidity condition control in improving properties of urea-formaldehyde ( UF) resins 脲醛树脂改性工艺中的酸度条件控制
Acidity Control in Rectifying Fine Methanol by Three Columns 三塔精馏精甲醇的酸度控制
The problems on acidity control of complexometric titration were further studied, and the new method of calculation on the dimension of suitable acidity about the titration in metal ion were proposed. 对络合滴定中酸度控制等问题进行了再探讨,提出了混合金属离子滴定适宜酸度范围的新的计算方法。
Fruit bagging decreased soluble solids concentration and titratable acidity compared with the control, especially in titratable acidity, titratable acidity in single bag was decreased by ( 27.8%). 套袋果的可溶性固形物及可滴定酸含量较对照有所降低,其中可滴定酸含量的下降幅度大,套单层纸袋的可滴定酸含量与对照相比下降27.8%。
When the concentration of exogenous La 3+ was higher than 300 mg/ kg, base saturation percentage ( BSP) and effective cations exchange capacity ( ECEC) decreased significantly, exchangeable acidity and exchangeable aluminum, however, increased significantly compared with the control. 当外源镧浓度大于300mg/kg时,土壤盐基饱和度与有效阳离子交换量显著降低,而交换性酸和交换性铝显著增加。
Effect of Solution Acidity and Control of pH Value in Coordination Titration 关于配位滴定中溶液酸度的影响和pH值的控制
The key point of this approach is that acidity of POMs can control the released amount of Ag+ complexed with – COO-groups of PAA and in turn control the size of nanoparticles. 关键之处在于利用多酸的酸性来控制PAA中与羧酸根离子配位的Ag+的释放量,从而控制纳米粒子的尺寸。
The effect of lactoferrin and lactoperoxidase on yoghurt during storage were studied, and the results showed that the acidity and viable counts of yoghurt adding lactoferrin and lactoperoxidase mixture were lower than the control group during storage period. 本试验还研究了乳铁蛋白和乳过氧化物酶对酸奶后酸化的影响,结果表明:添加乳铁蛋白和乳过氧化物酶混合物的酸奶在储存期内酸度及活菌数均低于对照组。