本文提出了以氢离子活度为测量值的混合酸滴定的计算公式;
A formula for the calculation of the equivalent volume of acid mixture titration is derived.
在本论文的实验中,利用强酸滴定混合碱法获得了环烷酸钾的滴定曲线,并据此确定环烷酸是一元弱酸;
In this paper, the titration curve of potassium naphthenate is acquired by using strong acid for titrating mixed base.
以鲜榨菠萝汁为样品,建立了测定果汁总酸的自动电位滴定法。
With fresh pineapple juice as a sample, the automatic potentionmetric titration was established to analyze the total acidity in the fruit juices.
但对可溶性固形物和可滴定酸含量无明显影响。
But it showed no effect on the contents of the solids and titrable acids.
介绍了采用非水滴定测定柠檬酸钾含量的分析方法。
In the paper the nonaqueous titration is used to determine potassium citrate content.
作为粘土酸,氧化物表面的酸性较弱,其表面质子逐步解离,使滴定曲线不出现突跃。
As clay acids, the proton on oxide surfaces dissociated gradually, so the titration curves showed no inflexions.
本文采用pH 电位滴定法测定磺基水杨酸铜络离子的稳定常数,得到了比较准确的结果(与文献值比较)。
It has been a good result by using PH-electrometric titration to determine stable constant about copper sulfo salicylic acid complex ion, in comparison with reference data.
稻谷脂肪酸自动滴定仪使用光学传感器以滴定过程的颜色变化为控制依据确定滴定终点,结果准确稳定,一致性好。
Rice fatty acid automatic titrator determines the titration end-point based on the color change in the titration process, and can get stable and accurate results.
采用配合滴定法测定次枸橼酸铋的含量,考察了片剂中其它主药成分和辅料对滴定的影响情况。
The compleximetry was used for the determination of bismuth subcitrate in samples. The effects of metronidazole, amoxicillin and excipient in tablet on the titration were studied.
该计算公式也可应用到蛋白质、氨基酸等两性电解质的线性滴定分析上。
It can also be applied to determine ampholyte such as protein and amino acid.
甘蔗在贮藏过程中蔗糖转化酶和多酚氧化酶活性不断提高,滴定酸、酒精和还原糖含量逐渐增加,而蔗糖和可溶性总糖含量逐渐减少。
During storage, activities of sucrose invertases and PPO increased gradually, titratable acid, alcohol and reducing sugar contents increased, while sucrose and soluble sugar contents decreased.
以百里酚兰为指示剂,用氢氧化钠标准滴定溶液测定植物油中游离脂肪酸。
To determine the free fatty ac id in vegetable oil with NaOH's standard titration solution, using Thymol Blue as its indicator.
方法用硝酸钍滴定法、测铁分光光度法、测磷分光光度法及高压液相色谱法对不同样品植酸含量进行测定。
Methods The samples of phytic acid were determined with thorium nitrate titration, ferric spectrophotometry, phosphorus spectrophotometry and high performance liquid chromatography respectively.
并且喷施水杨酸还提高了果实硬度,从而提高了果实的耐贮性,但同时降低了可溶性固形物的含量,提高了可滴定酸的含量。
Meanwhile, the fruit rigidity was increased, but total soluble solid contents were decreased and titration acid contents were increased in the treatment of SA spraying.
可滴定酸与V-C之间存在着显著的负相关,通过对可滴定酸的选择可间接地对V-C进行选择;
There was a significantly negative correlation between V-C and titrationable acid, titrationable acid could be used as an indirect trait for selecting V-C.
将非线性规划问题的单纯形加速法用于混合酸的线性滴定计算,同时优化酸浓度及有关条件常数,求出酸浓度的最优解。 讨论了影响单纯形法计算速度的因素。
The simplex optimization method about nonlinear programming problem has been used in the mixed acid linear titration and the effect of various factors on computative speed has been discussed.
用甲醇对油样中l -抗坏血酸棕榈酸酯进行提取,对提取物在酸性条件下水解,用水解产物对2,6 -二氯酚靛酚钠溶液进行滴定。
L-ascorbyl palmitate in the methanol extract is hydrolyzed under acid condition, and 2, 6-dichlorophenol indophenol sodium solution is titrated with the hydrolysate.
用吸附指示剂正丁胺滴定法测定了催化剂的酸量。
The acidic concentration of the catalyst was titrated by butylamine with the method of adsorption of coloured indicator.
方法采用乙二酸四醋酸二钠滴定方法测定铋离子和铝离子;
Method Bismuth and aluminum were detected by titration with EDTA.
贮藏后期套袋果较不套袋果可滴定酸含量降低幅度小,可溶性固形物含量降低幅度稍大。
During the late period of storage, the content of titratable acids in the bagged fruit was much higher than that of the unbagged ones, while the content of soluble solids was much lower.
本文提出了测定水难溶单元酸的两种线性滴定方法。
Two linear methods for evaluating slightly soluble acids are presented.
贮藏后期果肉可滴定酸含量增加。
可滴定酸含量以双层袋处理最高。
以鲜榨菠萝汁为样品,建立了测定果汁总酸的自动电位滴定法。
With fresh pineapple juice as a sample, the automatic potentiometric titration was established to analyze the total acidity in the fruit juices.
人工掐花萼法对减少石细胞团的直径和密度不显著,但它可提高可溶性固形物的含量,降低可滴定酸的含量,从而提高果实品质。
Niping calyces had no distinct effect to decrease stone cells, but total soluble solid contents were increased and titration acid contents were decreased, so it could improve fruit quality.
这种变化虽然不同于碱滴定酸时石蕊由红到蓝的突然转变,但也相差不远了。
It was not quite the sudden shift from litmus red to blue of an acid being neutralised by an alkali, but it was not far off.
前言: 目的:采用EDTA 配位滴定法准确快速测硫酸钡纯度并与常用的铬酸钡容量法进行对照。
Objective:To dopt EDTA complexometry veraciously quickly measure barium sulfate purity and in contrast to barium chromate volumetric procedure.
为防止铟水解和保证EDTA滴定法能在酸性条件下进行滴定,分析铟靶材废料盐酸浸出液时酒石酸钾钠用量对铟含量测定的影响。
To prevent indium hydrolysis and to ensure EDTA titration in acidic condition, the effect of seignette salt dose on indium solution of ITO waste material is studied.
土壤中有效硼与果实中可滴定酸呈显著负相关,其他养分含量与果实品质因素间没有显著相关性;
The available-B of soil had negative with TSS in fruit, and other nutrition had no significant correlation with fruit quality.
土壤中有效硼与果实中可滴定酸呈显著负相关,其他养分含量与果实品质因素间没有显著相关性;
The available-B of soil had negative with TSS in fruit, and other nutrition had no significant correlation with fruit quality.
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