电导滴定的

Conductometric titration of modified lignin indicate that acidic groups in the modified lignin can be classed into three groups, the strongly acidic group, intermediately acidic group and weakly acidic group.

电导滴定实验得出，改性木素中的酸性基因可以分成三类，即强酸性基团、中等酸性基团和弱酸性基因。

CS/Gel HPN gel was made and its forming mechanism was characterized by infra-red spectrum and x-ray diffraction. Turthermore, DSC, conductivity titration and turgidity titration were employed to estimate the interaction mechanism between there two biopolymers as well as the properties of HPNs

制备壳聚糖/明胶杂混聚合物网络凝胶，用红外光谱、X射线衍射等测试手段表征了HPN的形成机理，并采用DSC、电导滴定、浊度滴定等方法进一步对两种生物高分子的相互作用机理及HPN的性能做了探讨，结果表明

Degree of deacetylation of the three different chitosan are determined by acid -base titration or acid -base conductometric titration.The MW of chitosan I and II by viscometry is 1.0 X 106and 9.5 X 105,respectively.

分别采用酸碱指示剂滴定和电导滴定法测定了壳聚糖的脱乙酰度，后者测定结果大于前者；应用粘度法测定原料壳聚糖Ⅰ和Ⅱ的粘均分子量分别为：1.0×10~6、9.5×10~5。

Ultrasonic conductometric titration is an easy, quick and reliable method for determining surface acidity of zeolites.

对影响超声振荡电导滴定法测定分子筛表面酸性质的因素进行了考察。

So the conductometric titration method can be used for measuring the composition of water-soluble copolymer containing ion monomer through complex reaction between polyelectrolyte and surfactant.

利用电导率的这一转折性变化，建立起了复合作用电导滴定法测定共聚物P(AM- co -NaAMPS)分子链中磺酸盐单体NaAMPS含量的新方法。

In this whole, SPES and free vitriol in mixtures were simultanuously analysed by conductometric nonaqueous titration, by using the distinguishing effect of nonaqueous solvent and its predominate solubilization property for the mixtures.

为此本文提出利用非水溶剂的区分效应和对SPES的良好溶解性能，通过电导滴定分析SPES和自由硫酸的混合产物。

Carboxymethyl groups were proved to be linked to PVA by Fourier transform infrared spectra and the degree of carboxymethyl substitution on the PVA was 2.77%determined by conductometric titration.

通过傅立叶红外光谱表征证明了羧甲基官能团已经被引入到聚乙烯醇分子链上，而且利用电导滴定测定了它的羧甲基官能团的取代度为2.77%。

In this investigation,the composition of copolymer P(AM- co -NaAMPS) of acrylamide and 2-acrylamido-2-methyl-propanesulfonate sodium has been determined with the aqueous solution of cetyl trimethyl ammonium bromide as titrant at a concentration of 0.001 mol·L-1 by conductometric titration method.

与元素分析进行比较的结果表明，上述复合作用电导滴定法可作为测定水溶性大分子链中磺酸盐单体含量的方便而又准确的方法，而且预计还可用作为测定水溶性大分子链中其它离子性基团含量的简捷方法。

The factors affect on the degree of substitution of product, yield and apparent viscosity, such as the mol rates of EPTAC with -NH2, reaction temperature, reaction time and the content of water in system have been discussed in detail. FTIR spectrometer and UV spectrometer are used to characterize the structure of the derivative and it is proved that substitution reaction mainly occurs on the -N element .The particle size and morphology of chitosan and quantemary ammonium salt of chitosan are analysised by comparing photos of their scanning electron microscope. The degree of substitution of HACC is determined by acid -base conductometric titration. An error in current formula of DS has pointed out and a correct formula has presented.On the base of experience of above experiment, the reaction conditions of HACC were systematically investigated through orthogonal design, and then the best conditions are found. Water-solubility and dependence of pH are studied.

壳聚糖和环氧丙基三甲基氯化铵在异相条件下发生反应，通过单因素实验，制备了一系列不同性能的壳聚糖季铵盐，本文首次详细讨论了反应条件(反应摩尔比、反应时间、反应温度、水含量)对产率及产物性能的影响；用红外光谱和核磁共振对结构进行表征分析时，发现季铵盐阳离子基以N位上取代为主；通过电镜图片对壳聚糖和季铵盐衍生物外观形貌进行对比，采用酸碱电导滴定法测定产物的取代度，并对常用取代度公式做了修正。

In this study, poly (PA12T), poly (PA12I) and PA(12T-co -121) were synthesized using terephthalic acid, isophthalic acid with dodecamethylene diamines.

中和成盐的过程中，十二碳二元胺可分别与对苯二甲酸、间苯二甲酸直接进行成盐反应，可以通过电导滴定法来判定等当量点。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。