fe2

So , the article thought that the activity of microorganism was related to Fe2 + .

因此，本文认为除锰滤柱内微生物的活性与二价铁离子相关。

By the measurement of the Fe2 + ions concentration during the reaction process , components of Fe ( OH ) 2 in precipitance regularity was obtained , furthermore , reaction kinetics and activity energy of Fe ( OH ) 2 oxidation reaction at different temperature were determined .

通过对氧化反应过程中二价铁离子浓度的监测，确定了不同温度下Fe（OH）2氧化反应的反应动力学及反应活化能。从理论上分析铁黑颜料晶体的成核机理及成核热力学。

Excessive Fe2 ^ treatment significantly affected some agronomic properties of soybean .

过量Fe~（2+）对大豆农艺性状有明显影响。

Fe2 + was mainly oxidized by free bacteria in the solution ;

Fe2+主要是被溶液中的游离菌氧化的；

The only metal ion which can improve the enzyme activity is Fe2 + .

只有铁离子（Fe~（2+））可提高酶活力。

Adding Ca2 + could decrease the quantity of bound Fe2 + .

Ca2+的加入能降低酶解花生蛋白与Fe2+的结合量。

The effect of Zn2 + and Fe2 + were less .

锌离子和亚铁离子的影响力相对较小。

The number of iron bacteria in the high and low Fe2 + content reflects the consistency .

十红滩及柴达木矿样中铁细菌数量大小与Fe2+含量的高低不同体现出了一致性。

As the initial Fe2 + concentration increased , the nitrobenzene removal ratio increased greatly .

随着Fe2+初始浓度的升高，硝基苯去除率明显提高。

Pore water Fe2 + and Mn2 + changes with the similar tendency .

间隙水Fe~（2+）与Mn~（2+）具有类似的变化趋势，且随着沉积物还原性的增加。

Fe2 + influenced root activity of soybean .

过量Fe~（2+）对大豆根系活力有影响。

Influence of pH . Fe2 + H2O2 on removing COD was discussed .

讨论了pH值、H2O2的浓度、Fe2浓度对COD去除的影响。

The effect of aluminum ions on the fe2 + - initiated lipid peroxidation

铝离子对二价铁离子启动的卵磷脂脂质体脂质过氧化的影响

Excessive Fe2 + stress inhibited the photosynthesis of soybean .

过量Fe~（2+）影响大豆光合能力。

The probe instantly responded to Fe2 + with high sensitivity and selectivity .

BDP-Cy-Tpy具有较高的选择性和灵敏度，并且能够瞬间对亚铁离子浓度的变化作出响应。

Fe2 + had no effect on the growth of the strain , but inhibited the enzyme production .

Fe2+对菌体生长无明显影响，但明显抑制菌体产酶；

Removing Fe2 + by freezing method , the removal rate could achieve more than 80 % in this method .

通过冷冻法去除的Fe2+能达到80%以上。

There is an optimum time of ultrasonic treatment and the best dosage of Fe2 + and H2O2 .

存在最佳超声处理时间与最佳Fe2+和H2O2加入量。

Metal ions Fe2 + , Mn2 + activate the enzyme has a strong effect .

金属离子Fe2+、Mn2+对酶有强烈的激活作用。

The promote effect from high to low in turn is yeast extract Fe2 + Ni2 + Fe .

其促进效果从大到小依次为酵母浸膏Fe2+Ni2+单质Fe。

However , excess Fe2 + and Zn2 + toxicity can occur in acid soils .

在酸性土壤中，过量的Fe2+和Zn2+会产生毒性。

The flocculation processes by DTC in the presence of Fe2 + were discussed .

讨论了DTC在Fe2+参与下的絮凝过程。图5表1参8。

Fischer-Tropsch process provides Mg2 + and Fe2 + which are necessary to form dolomite .

费托反应提供了生成白云石所必须的Mg2+、Fe2+。

This DTC showed no deoiling capability in wastewaters without Fe2 + .

当污水中不含Fe2+时，DTC无絮凝除油效果。

On the experimental condition , most of Fe2 + was distributed in crystal phase , which promoted the crystal precipitation .

在本实验研究的条件下，Fe2+主要分布在析晶相中，起到促进晶体析出的作用；

Optical absorption data showed that the energy gap E 8 decreases linearly with the composition x of Fe2 + ions .

其光吸收数据表明：光学能隙Eg随着Fe~（2+）成分x增加而线性减小，用线性回归法拟合得其关系。

The Mossbauer spectra display two double-absorption characteristics of Fe2 + and Fe3 + .

穆斯鲍尔谱显示出Fe2＋和Fe3＋的两个双吸收特征。

The influence of cultivation conditions on the growth of the bacteria was investigated by monitoring dissolved oxygen and Fe2 + oxidation rate .

通过测定溶氧和Fe2+氧化速率可了解培养条件对微生物生长特性的影响。

H2O form was controlled mainly by water content , Fe3 + / Fe2 + , pH and Eh ;

氨水相无机碳主要由含水率、Fe3+/Fe2+、pH、Eh控制；

The results show that it is almost linear relation between time and Fe2 + conversion accordingly to kinetics feature of zero order reaction .

实验结果表明：在晶种制备阶段[Fe~（2+）]的转化率随时间几乎呈直线变化，符合零级反应的动力学特征；