络合态

有机络合态Cr在土壤－植物系统中的污染行为

Pollution behavior of organic Cr (ⅲ) complexes in soil-plant system

有机络合态的铜也能为大型水蚤所吸收和利用，在相同浓度条件下大型水蚤对腐殖酸络合态铜的利用大于EDTA络合态铜。

It 's also proved that copper complexes are bioavailable to Daphnia magna . Moreover , the bioavailability of copper complexed with humic acid is more than that with EDTA under the same concentrations .

采用连续浸提法将硼泥中的硼划分为七种物理形态，即：水溶态、醇溶态、盐溶态、络合态、硫酸盐等结合态、Fe-Mn结合态及残渣态。

The sequential chemical extractions have been developed for partitioning of boron in the boron sludge into seven fractions : water soluble , ethanol soluble , salt soluble , chelate , sulfate combined , Fe-Mn combined and residual species .

化学平衡计算结果说明，在pH6至9范围内，人工河水中优势态铜从游离态铜过渡到羟基络合态铜。

The results of the chemical equilibrium modeling indicated that within pH range of 6 to 9 , the dominant species of copper in the bulk solution shifted from free ions to hydroxo complex .

土壤DOC与土壤中有机络合态铁、有机络合态铝和活性羟基铝之间呈极显著或显著的正相关。

A very significant positive or a positive correlation is found between the DOC concentration of soil and the concentration of organic iron , organic aluminum and active aluminum , which means that soil DOC is one of the important factors controlling the migration of aluminum and iron in soil .

Cl-，SO2-4，HCO-3以及OH-可与Cu2+形成各种无机络合态铜，样品回收率为980%，测定络合容量的相对标准偏差为49%，条件稳定常数的相对标准偏差为84%。

The Cl - , SO 2 - _4 , HCO - _3 and OH - could form inorganic ligands Cu . The recovery rate was 98.0 % . The relative deviation for the determination of complex capacity was 4.9 % .

高浓度络合态铜离子废水的预处理研究

Researches on the pretreatment of wastewater with highly concentrated copper in complex state

腐殖酸络合态铜对鱼的生物有效性

Fish uptake of fulvic acid complexed copper

酸化-预热处理方法解离去除高浓度络合态铬

Dissociation and removal of high concentration chromium in complex state by acidification - preheating method

水稻土的研究Ⅷ.江苏丘陵冲田水稻土的腐殖质和络合态铁

Studies on paddy soils ⅲ . humus and complex iron in alluvial paddy soils of Jiangsu Hill Region

土壤络合态铁与土壤有机质含量有关。

The content of the iron in form of complex compound is related to that of the organic matter .

在1,2二氯乙烷、甲醇、乙醇等溶剂中，或以络合态溴作为溴化剂时，反应也需要加热。

Heating was necessary too , when 1,2-dichloroethane , methanol or ethanol was used , or bromine-dioxane complex was taken as brominating agent .

对于黄色或橙色铬络合物，将废水进行预热以提高处理温度，或加酸酸化，都会使络合态铬离子结构破坏；

For yellow or orange chromium complex , their structure could be destroyed by means of heating the wastewater to raise its temperature or acidification .

实验结果表明，铁对小球藻生长影响的主要生物活性形式是有机络合态铁和胶体水合氧化铁，光诱导还原态Fe2+也很重要。

The results show that the dissolved organic ligands of Fe and the dissolved hydrous ferric oxide colloids are the bioavailability species of Fe for algae growth , during which the light induced reduction species Fe 2 + is also important .

通过电化学氧化还原反应、置换还原反应、物理吸附以及絮凝共沉淀等诸多因素的协同作用，将络合态铜离子解离去除，铜总去除率可达99.6%。

The dissociation and removal of complex copper ion could be a cooperation of various factors , including electrochemical oxidation and reduction , displacement reaction , physical adsorption and flocculation , etc . The total removal rate could reach 99.6 % .

在研究不同来源胡敏酸性质的基础上，研究了Fe2+与胡敏酸的络合特征以及络合态Fe2+的抗氧化性和生物有效性。

On the basis of studying the properties of humic acids from soil and decomposed corn stalk and manure such as pig manure and chicken manure , the characteristics of complexes between iron and humic acids and the anti-oxidation of chelated iron was researched .

采用银离子与氰根络合反应，测定络合态的银，计算氰根含量，是新颖、简便、快速的一种测定方法。

Applying the complexation reaction of silver ions with cyanogen radicals , the measurement of the silver in complex state is taken , in the paper , and the calculation of the cyanogen content is also done here . This measuring method is of new type , convenience and quickness .

采用络合解离-中和共沉淀法对高浓度络合态铜离子废水进行了处理。

Wastewater with highly concentrated copper in complex state has been treated by dissociating the complex structure-neutralization and flocculation method .

有机物与金属离子的络合可能会降低金属离子的毒性，但同时络合态的金属离子也可能会增加水处理工艺的难度，甚至在一些水处理工艺中再度将自由态金属离子释放出来。

Metal complexation with NOM may also be disadvantageous to water treatment process . Although its toxicity may be reduced by its complexation with NOM , it will be difficult to remove the complexed metal in water treatment process .