弱碱性

文章基于维多利亚蓝B与脱氧核糖核酸在弱碱性条件下共振光散射的增强效应。

The enhancement of the Resonance Light Scattering ( RLS ) due to Victory blue-B on the molecular surface of DNA in alkalescence solution was studied .

发现前驱体溶液在弱碱性制备的QDs具有比强碱性更好的荧光；同时QDs颗粒在绿光区生长快，在红光区生长缓慢。

It found that the preparation in the alkalescence precursor solution had better photoluminescence than in strong alkaline , and the growth of QDs particles was faster in green zone than red zone .

固定pH滴定法测定弱碱性药物西米替丁

Determination of Cimetidine by pH-fixed Titration Method

固定pH滴定法用于检测弱酸弱碱性药物的研究&Ⅰ.盐酸苯海拉明和盐酸阿米替林的测定

PH-Fixed Titration to Weak Acidic or Weak Basic Drugs I. Determination of Amitriptyline and Diphenhydramine

弱碱性阴离子交换纤维吸附H2S和CO2混合气体的研究

Research for Adsorption of H_2S and CO_2 Mixing Gas on Alkalescence Anion exchange Fiber

报道一种水溶液中测定弱酸弱碱性药物的新型滴定分析方法&固定pH滴定法。

A novel titration method in aqueous solution , fixed pH titration , for weakly acidic and basic drugs is presented .

在特定时期，施用硅肥可以提高酸性水稻土Eh，降低弱碱性和碱性水稻土的Eh。而施用葡萄糖具有降低土壤Eh的作用。

The Eh of soil is decreased by application of glucose .

矿浆pH值对试样可浮性影响较小，中性或弱碱性条件下，试样可浮性最佳。

The pH value has little effect on flotability of samples , and flotability achieves the best effect when pH is neutral or weakly alkaline .

制备了三种互贯网络弱碱性阴离子交换树脂（NR系列）。

Three kinds of weak basic anion exchange resins ( NR series ) with interpenetrating networks have been prepared .

研究表明，在弱碱性矿浆中（pH值75～85）能够较好地实现载金矿物与脉石矿物的浮选分离。

The study on various influential factors in flotation concentration proved that the gold bearing minerals can be well separated with lode ore in mild basic slurry of pH 7.5 ~ 8.5 .

当Mn2+在弱碱性中（pH为9～10）反应生成难溶于水的红色螯合物，悬浮物在明胶存在下形成透明、均匀、稳定的有色溶胶。

Mn2 + in weak base can creat red chelate which is very slightly soluble . Under gelatin 's presence , suspended matter forms diaphaneity , homogeneous and stable , colored sol .

反应温度与pH值均影响凝胶强度，在温度超过70℃的范围内，均能形成稳定的凝胶；体系在中性或弱碱性时，凝胶的强度最大。

The reacting temperature and pH have affected the gel strength , which can produce the steady gel exceeding 70 ℃, and the gel strength is most in the neutral or alkalescent system .

Eosin5NCS在弱酸性介质中的荧光强度明显高于在弱碱性介质中的荧光强度，但荧光强度随溶液pH的变化较敏感，需要小心控制。

The fluorescence intensity of eosin-ITC in weak acidic medium is higher obviously than that of in weak basic medium , but it is sensitive to change of pH , be careful to use .

无论在弱酸性还是弱碱性介质中，硝基甲烷在WC电极上的还原主要受扩散步骤的控制。

Whether in acidic or in alkali solution , the electrochemical reactions of nitromethane on WC electrodes are controlled mainly by the diffusion of reactants .

弱碱性脱墨工艺由于省去了大量化学品，因此外排废水的COD明显减少，脱墨浆的生产成本较低。

The weak alkaline deinking process saves a large amount of chemicals , so the COD of waste water decreased significantly and the production cost of deinking pulp is very low .

结果：LAP在弱酸性溶液中较稳定，在弱碱性溶液中水解较快；在血清和组织匀浆中易水解，在肝匀浆中水解最快；

RESULTS : LAP was more stable in weak acid solution than in base solution and hydrolyzed fast in serum and tissue homogenates , especially in liver homogenate .

在相同电解质浓度下，碱性和弱碱性条件使SDBS/SLA混合体系的cmc变化不大，但与中性相比下降很大；

At the same concentration of electrolyte , the cmc of the SDBS / STBS solution in basic property was not changed but that in neutral property was decreased obviously .

克热1井地热流体为HCO3·Cl-Na型、弱碱性水、淡水。

G hot wells geothermal fluid HCO3 · CI-Na-type alkaline water , freshwater .

通过在纯铜中添加Sn、Zn元素铸造试样，采用阳极极化测定法研究在弱酸（pH值为6）、弱碱性（pH值为8）溶液中Sn、Zn两元素对铜合金腐蚀行为的影响。

To determine the influence of tin , zinc on the corrosion behavior of copper alloys in the weak acid ( pH6 ) and weak basic ( pH8 ) solutions , the method of anodic polarization test was adopted .

草履虫对酸的耐受范围在5.0-7.0之间；而在弱碱性环境下，pH在8.0时草履虫的密度和种群增长率较大，并随着pH的增大而减小。

In acid environment , the tolerance range of pH to P. caudatum population is 5.0 to 7.0 . But at alkalinity environment , the density and population growth rate of p. caudatum are larger at pH 8.0.and decreased with the increasing pH value .

层间氧化带内不同亚带的水岩体系pH值也有所不同，氧化带和还原带处于弱碱性介质环境，而氧化还原过渡带则处于中性介质环境；

The water-rock system pH values are somewhat different in different subzones of the interlayer oxidation zone , i.e. , the oxidation and reduction zones are in an environment of weakly alkali media whereas the reduction-oxidation transitional zone is in the setting of neutral media .

结果氯雷他定pKb为8.5819，为弱碱性药物。结论Benet法和ChattenandHarris法可有效测定难溶于水的弱碱性药物的pKb。

RESULTS The pK b of loratadine was 8.581 9.CONCLUSION The method can be used for the determination of dissociation constants of insoluble alkalescent drugs .

弱碱性中心是COS水解催化活性中心，而弱的和较强的碱性中心参与CS2的水解催化反应。

The weaker basic centers were the catalytic active centers of COS hydrolysis , while the weaker and the stronger basic centers took part in catalytic reaction of CS 2 hydrolysis .

主要研究了弱碱性阴离子交换纤维对高浓度的H2S、CO2混合气体的吸附性能，考察了各种因素对吸附的影响规律，为今后进一步的深入研究打下了一定的基础。

Performance of adsorption of high concentration H 2S and CO 2 on alkalescence anion exchange fiber mixing gas was researched , and effect of various factors on adsorption was examined also , to found advantage research in the future .

研究了大孔型弱碱性阴离子交换树脂D354分离水中柠檬酸的相平衡和动力学。

The equilibrium and kinetics of citric acid separated by a weakly basic anionic exchange resin D354 , were studied .

结果表明，麦饭石对含重金属废水具有较强净化作用。在中性弱碱性条件下（pH7～8），使用Ca型，灼烧0.5h的麦饭石颗粒作吸附剂，净化效果较好。

The result showed that Marfan stone possessed strong adsorbing properties to heavy metals , and the efficiency of purification was better under the condition of pH 7.0-8.0 , using Ca - Marfan stone scorched for 0.5h .

用静态法研究了6-氨基青霉烷酸在弱碱性阴离子交换树脂IRA67上的吸附行为。

The adsorption behavior of6-aminopenicillanic acid ( 6-APA ) on weak basic anion exchange resin IRA67 was studied .

将大孔型弱碱性苯乙烯系阴离子交换树脂D370应用于精制微生物法丙烯酰胺水剂过程中。

Microporous styrene type weak basic anion exchange resin D370 is used to refine acrylamide solution in microbial method .

结果表明，弱碱性树脂D301G可以提供较高的吸附量，在有机羧酸和水之间具有较好的选择性。

Results show that weakly basic resin D301G can provide high uptake capacity and high selectivity for acid over water .

实验包括以下几部分：（1）改进了水相制备绿橙红三色水相CdTeQDs的方法，提出了前驱体溶液在弱碱性制备巯基丙酸（MPA）包覆CdTeQDs的方法。

The experiments included the following components : ( 1 ) The preparation of green , orange and red color CdTe QDs had been improved . It proposed the preparation method of mercaptopropionic acid ( MPA ) capped CdTe QDs in the alkalescence precursor solution .