柠檬酸与针铁矿交互作用时会形成针铁矿-柠檬酸的复合胶体，增强对重金属活性离子的吸附，降低重金属毒性。
The adsorption will be enhanced by the goethite-citric acid compound colloid which from the citric acid and goethite interaction.
酶活性变化与底泥重金属的含量相关性很大。
It was correlated between enzyme activity and heavy metal content in substrate sludge.
催化剂活性高，异丁烯选择性好，水热稳定性好，抗重金属能力强。
It is characterized with good activity, good iso-olefins selectivity, hydrothermal stability and heavy metal tolerance.
通过所做的硝酸还原酶活性实验、过氧化物酶实验，针对重金属在生态系统中对农作物的影响问题，做了一个早期的、比较完整的分析。
Through nitrate reductase active experiment, and peroxidase experiment. The impact on plant of heavy metal that correctly question, has done an early, more intact analysis.
生物膜具有较高的表面反应活性和丰富的吸附面积，对水环境中的重金属、有机物等污染物具有明显的吸附、富集作用。
Due to the high surface reactivity and large surface areas, the most important role of surface coatings in the aquatic environments is the adsorption or enrichment of pollutants in the water.
本文通过阐述重金属污染对土壤生物及土壤酶活性的影响，揭示了重金属污染对土壤生态系统的危害。
This article expounds the effects of pollution of heavy metals on soil organisms and soil enzyme activities, discovers the harm of pollution of heavy metals on soil ecosystem.
本文就重金属对植物细胞分裂、 细胞超微结构、细胞膜、光合作用、呼吸作用以及酶活性等方面作一简要综述。
This review concentrates toxicant mechanism against plants in cell division, cell ultrastructural organization, cytolemma, photosynthesis, respiration and enzyme activity.
有机络合剂使得土壤溶液中可溶性与离子态重金属的浓度改变，反映了其活性与可利用性较对照不同。
The change of soluble and ionic heavy metal concentration in soil solution showed that, the activity and plant availability of heavy metals was higher than that of the check.
通运对活性组分的调整及载体的改性增加了催化剂抗重金属污染的能力。
Through the rearrangement of the active components and the modifying of the matrix, SDC-2000 can strengthen the heavy metal tolerance ability.
用该富硅分子筛作为活性组分制备的烃类裂化催化剂，具有活性高、积炭量低和较强的抗重金属污染能力。
The hydrocarbon cracking catalysts prepared by the silica rich REHY as an active component possessed high cracking activity, low coke formation and high metal tolerance...
上游的重金属总弱酸可提取态要比下游高，可见上游沉积物中重金属的活性和迁移性较强，而下游沉积物中重金属的活性和迁移性较差；
Acid soluble in the upper reaches higher than downstream and migration of heavy metals is strong, while it is poor in the downstream.
目的：选择一种测定活性炭中重金属的有效的前处理方法。
Objective: To choose a kind of method measuring the heavy metals in the activated carbon of valid of ex-handle a method.
实际上，大多数重金属氯化物不能作为活性剂。
In fact, most of the heavy metal chlorides could not be used as active agents.
介绍了近年来土壤酶与重金属关系的研究动向，以及重金属对酶活性作用的影响因素；
This paper mainly presents advance on the relationship between soil enzymes and heavy metals in recent years.
介绍了近年来土壤酶与重金属关系的研究动向，以及重金属对酶活性作用的影响因素；
This paper mainly presents advance on the relationship between soil enzymes and heavy metals in recent years.
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