1) two-phase back titration
两相返滴定
1.
Determination of anionic surface active agent in javelle water by two-phase back titration;
两相返滴定法测定次氯酸钠消毒液中阴离子表面活性剂含量
2) double-phase reversed titration
两相返滴定法
3) two phase titration
两相滴定
1.
Some basic constants of extractant CA-100 such as solubility(S) in water, dissociation constant(Ka) in aqueous solution, dimerization constant(K2) and distribution constant(Kd) between water-haptane have been determined by two phase titration method.
利用两相滴定法在(25±0 5)℃下测定了仲壬基苯氧基乙酸(CA-100)在水中的溶解度S,离解常数Ka,以及庚烷中的二聚常数K2和水-庚烷两相间的分配常数Kd。
2.
In this work some basic constants of extractant Sec-Octylphenoxy acetic acid (CA-12) such as solubility(S) in water, dissociation constant(K a) in aqueous solution, dimerization constant(K 2) and distribution constant(K d) between water and haptane have been determined by two phase titration method.
在 2 5℃ ,利用两相滴定法测定了仲辛基苯氧基乙酸 (CA 1 2 )在水中的溶解度S ,离解常数Ka,庚烷中的二聚常数K2 和水 庚烷两相间的分配常数Kd 。
4) two-phase titration
两相滴定法
1.
The two-phase titration is the general method for determining the extent of anionic surfactant and its titrational mechanism is investigated in this paper.
探讨了直接两相滴定法的滴定原理 ,并介绍了用该法测定脂肪酸甲酯磺酸盐 (MES)、α-烯烃磺酸盐 (AOS)中不同活性组分含量的分析程序。
2.
The values of the two-phase distribution constants between three organic solvents of chloroform, benzene, n-hexane and water have been determined by means of two-phase titration.
采用两相滴定法,测定了它们在氯仿、苯和正己烷三种有机溶剂与水之间的两相分配常数。
5) two-phase titration method
两相滴定法
1.
The extraction mechanism of cobalt(Ⅱ) and nickel(Ⅱ) from HCl medium using sec-octylphenoxyl acetic acid(CA-12) as a new kind of carboxylic extractant has been investigated systematically by two-phase titration method at 298 K,and the extracted complexes have been determined to be CoA_2·4.
确定萃取机理和萃合物组成时,两相滴定法比斜率法快速简便。
2.
The extraction mechanism of Sr(Ⅱ) from HNO3 medium with HEH/EHP in n-oc-tane has been investigated by a two-phase titration method and the extracted complex hasbeen determined to be SrA2· 3.
但用两相滴定法研究较少“，’‘。
6) back titration
返滴定
1.
Determination of isopropanol by back titration of potassium dichromate;
返滴定K_2Cr_2O_7法测定异丙醇
2.
Improvement in the experiment of "detection of aluminum in unknown samples by back titration method"
返滴定法测定未知物中铝含量的实验改进
3.
This article adopted back titration,using excessive alkali reacted with fatty acid in alcohol extract,then using standard HCL solution titrated the excessive alkali,and calculated the fatty acid value of grain.
采用返滴定法 ,用过量的碱先与乙醇提取物中的脂肪酸反应 ,再用标准HCl溶液滴定过量的碱液 ,以此求得粮食的脂肪酸值。
补充资料：两相滴定法
分子式：
分子量：
CAS号：
性质：用标准碱（或酸）溶液滴定有机相-水相萃取体系中的弱酸（或弱碱），滴定过程中测定水相的pH值。在滴定过程中，既存在酸碱平衡，也存在弱酸（或弱碱）及配位化合物在两相中的分配平衡。用两相滴定法可以测定弱酸在水相的电离常数及其在有机相和水相间的分配平衡常数，螯合萃取体系的平衡常数。它也是研究萃取机理的一种方法。
分子量：
CAS号：
性质：用标准碱（或酸）溶液滴定有机相-水相萃取体系中的弱酸（或弱碱），滴定过程中测定水相的pH值。在滴定过程中，既存在酸碱平衡，也存在弱酸（或弱碱）及配位化合物在两相中的分配平衡。用两相滴定法可以测定弱酸在水相的电离常数及其在有机相和水相间的分配平衡常数，螯合萃取体系的平衡常数。它也是研究萃取机理的一种方法。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条