Acid dissolution and metal ion complexing reactions of the organic acids accounted for their stimulation of soil phosphorus release.
有机酸影响土壤磷的释放是酸溶解作用和与金属离子络合反应共同作用的结果。
At last we got coarse alkaloids after concentration. Then we refined it through acid dissolution alkalization and extraction by organic solvent.
然后采用酸溶、碱化、有机溶剂萃取的方法对所得粗品进行了精制。
The principles and characteristics were briefly described on the methods of acid dissolution, alkali dissolution, ion exchange and membrane separation for aluminum salt recovery.
简述了铝盐回收的主要方法，分别为酸溶法、碱溶法、离子交换法和膜分离法，对每一种方法的原理和特点作了介绍。
Results Utilizing lactic acid dissolution and alcohol precipitation technology could prepare granules of chitosan lactate, which had characteristic absorption peak in infrared spectrum.
结果利用乳酸溶解和醇沉淀工艺可制备出壳聚糖乳酸盐颗粒，在红外光谱中具有特征性吸收峰。
Pozzolanic reactivity of several pozzolanic admixture were measured and compared by acid dissolution method. Effects of reaction degree of pozzolanic admixture on strength of paste were discussed.
采用酸溶法测定并比较几种典型的火山灰质掺合料的火山灰活性，探讨其火山灰反应程度对浆体强度的影响。
A new process involving ultrasonic separation of electrode materials, acid dissolution, precipitation of cobalt and lithium has been applied to recover metals values from spent lithium-ion batteries.
采用超声波分离电极材料-酸浸-钴锂沉淀新工艺分离并回收了废旧锂离子电池中的有价金属。
Some people really do seem to think that natural selection is a universal acid, and that nothing can resist its powers of dissolution.
看起来确实有人认为自然选择是一种无所不能的酸液，而且没有任何东西能抵抗其侵蚀的威力。
Acid salts of neotame, sweetener salts of neotame, basic salts of neotame and metal complexes of neotame to improve the solubility and dissolution rate in water of neotame are introduced mainly.
重点介绍了纽甜和酸复合、纽甜和其它甜味剂复合、纽甜和碱式盐复合、纽甜和金属离子复合等方法提高纽甜在水中的溶解度和溶解速率。
Since it was discovered in the 19th century, few attention has been paid on the adsorption mechanism of heavy metal ions to the mineral and kinetics of acid-dissolution of palygorskite.
凹凸棒石是一种链层状镁铝硅酸盐矿物，早在19世纪就已被发现，但是至今该矿物在重金属离子吸附机理和纯凹凸棒石酸溶动力学方面的研究仍较少。
The results showed that there were good linear relativities between the equilibrium swelling quantity, protein dissolution and residual amino acid content.
结果表明，平衡溶胀量、溶出量和氨基酸残基含量之间呈良好线性关系。
Phenomena of Acid leaching of oxide ore and dissolution of silica are described.
介绍了氧化矿的直接酸浸及二氧化硅的溶解行为。
The microstructures of gels prepared by reaction between silk fibroin and epoxide (PGDE) at different reaction temperature were studied by amino acid analysis, DSC analysis and dissolution methods.
用氨基酸分析、热分析以及溶解法分析了丝素蛋白与环氧化合物(PGDE)在不同反应温度下形成的凝胶的微观结构。
One of the most powerful means in the development of oleanolic acid new dosage forms is to increase its solubility and drug dissolution velocity.
增加药物溶解度和溶出速率，是齐墩果酸新制剂研究中的主要措施。
Objective: to establish a method of determining the dissolution in Zhentangkang capsule by UV - visible spectrophotometry for Oleanolic acid.
前言：目的：建立贞糖康胶囊中齐墩果酸溶出度的测定方法。
METHODS HPLC was used to determine the dissolution rate of Yanshuangsan powder before and after super fine crushing with Indigo and glycyrrhizic acid as index.
方法：以靛蓝和甘草酸溶出量为指标，采用高效液相色谱法分别对超微粉碎前后咽爽散溶出量进行测定。
The starch spherocrystals were prepared by dissolution and freezing recrystallization of the acid-hydrolyzed starch.
该酸解淀粉经过溶解和冷冻重结晶制备得到了淀粉球晶。
METHODS By combinaton of complexing dissolution, solvent extraction and photometric measurement, the amount of salicylic acid was first obtained and then converted to the content of copper salicylate.
方法通过络合溶解、溶剂萃取、光度法测量的联用，测定水杨酸的量，再换算成水杨酸铜的含量。
The formation of organic acid speeds dissolution of minerals in source rock, and the influence of the organic acid dissolving carbonate mineral influence is most obvious.
其中乙酸的形成有利于碳酸盐矿物的溶解，而草酸的形成不利于碳酸盐的溶解。
Ellipsometry, A. C. impedance and potential measurements have been used to study the dissolution behaviour and corrosion resistance of titanium anodic oxide film in 0.5n sulfuric acid.
本文用椭园法、交流阻抗及电位测量研究了钛阳极氧化膜在0.5N硫酸中的溶解规律和耐蚀性。
It includes a brief review of chemical thermodynamics that is followed by discussion of acid-base, precipitation-dissolution, coordination, and reduction-oxidation reactions.
首先是简短回顾化学热力学，接著是讨论酸碱、沉淀—溶解、配位和还原氧化反应。
The weathering front is a main place of geochemical reaction, and at this limited-thick interface, with quick dissolution of carbonates, acid-insoluble residues begin to obviously decompose.
风化前锋是一个重要的地球化学作用场所，在这一狭窄的界面上，伴随碳酸盐矿物的快速淋失，残余酸不溶物开始了明显分解。
Method:UV-visible spectrophotometry was adopted to deter- mine the dissolution of Oleanolic acid in Zhentangkang capsule.
方法：以紫外-可见分光光度法测定齐墩果酸的含量。
CONCLUSIONS Oleandic acid dropping pills have good appearance, weight variation and high content. Dissolution also has been enhanced significantly.
结论筛选出滴丸的处方和最佳成型工艺，滴丸外观性状好、含量准确，丸重差异小，齐墩果酸的溶出得到显著提高。
When increasing the quantities of citric acid, there was a trend favoring the mechanism of diffusion and the dissolution rates increased.
随着枸橼酸用量的不断增加，药物释放机制更靠近扩散过程，且释药速度逐渐增加。
When increasing the quantities of citric acid, there was a trend favoring the mechanism of diffusion and the dissolution rates increased.
随着枸橼酸用量的不断增加，药物释放机制更靠近扩散过程，且释药速度逐渐增加。
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