1、

Study on the mechanism of removal of radioiodine with silica gel impregnated with silver nitrate by the methods of infra-red spectrum, scanning electron microscope, X-ray diffraction and radioactive tracing test is reported.

本文用红外吸收光谱测定、扫描电镜观察、X射线衍射分析、放射性示踪试验等方法,研究了附银硅胶除碘的机理。

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2、

First, contrasts five kind decolorization method of vegetables samples, we know Erlenmeyer flask activated charcoal adsorption is good to vegetables sample decolorization, moreover the nitrate returns-ratio is high. We use the decolorization method for this research.

首先,对比研究了蔬菜样品的五种脱色方法,结果表明三角烧瓶活性炭吸附法对蔬菜样品脱色效果较好,硝酸盐回收率高,为本项研究采用的脱色方法。

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3、

Application of BDK Anticaking Agent in Ammonium Nitrate Production

BDK防结块剂在硝酸铵生产中的应用

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4、

The nitrate content in the fruits and the soil ( 0-40 cm soil layer) of every fertilizer group had a tendency that moved upward in early and attained maximal value at 6-9 days later, then dropped once more after the same time topdressing.

2追肥后间隔不同天数采收不同施肥处理樱桃番茄果实与土壤(0~40cm土层)中的硝酸盐含量也呈现先上升,在施肥后第6~9天达到最大值,而后又下降的趋势。

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5、

Chlorophyll contents, nitrate reductase activity, iron content and zinc content in the leaves were significantly increased after 72 h after nectarine trees and grapevines sprayed with fertilizers.

以油桃和葡萄为试材,喷施复合叶面肥72h后,叶片中叶绿体含量、硝酸还原酶活性、铁和锌含量显著提高;

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6、

Everybody concerned how to decrease the nitrate nitrogen content in vegetable increasingly.

如何降低蔬菜中的硝态氮含量受到人们日益广泛的关注.

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7、

Nitrate Removal Using Biodegradable Polymers ( DBPs) as Carbon Source and Biofilm Carrier of Denitrifying Microorganisms

利用可生物降解聚合物同时作为反硝化微生物的碳源和附着载体研究

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