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Forβ-l,3-glucanase,its activity increased to peak level after 2 to 5 days and was 2.02 and 1.34 folds of check,then decreased rapidly and resumed to normal level after 5 and 9 days.Generally Psoralea corylifolia L.extract may enhance the activities of chitinase andβ-l,3-glucanase in cucumber leaves,then induce the enhancement of activities of defensive enzymes.

从所测定的几种酶活性变化时间来看,补骨脂提取物处理黄瓜幼苗后,首先,使黄瓜体内的几丁质酶和β-1,3-葡聚糖酶等病程相关蛋白活性升高,然后在两者的作用下,诱导了黄瓜体内过氧化物酶、多酚氧化酶、苯丙氨酸解氨酶等一些防御酶活性的提高。

Research and development for fhe production of pyrocatechol and hydroquinone by reaction of phenol with hydrogen peroxide and percarboxylic acid as hydroxylating reagent are introduced.

着重介绍用过氧化氢和过氧化羧酸作羟基化剂,使苯酚羟基化生成邻苯二酚和对苯二酚的研究开发进展。

A spectrophotometric determination of iodine by oxidation decoloration reaction of pyrocatechol violet by iodatein a strong acid medium is reported in this paper.

本文提出了在强酸性条件下,根据碘酸根氧化邻苯二酚紫使其褪色吸光光谱法测定加碘食盐中碘含量的分析方法。

A novel catalytic resonance light scattering method for the determination of traces of formaldehyde in blood plasma was developed. It was based on the fact that potassium bromate reacted with pyronine Y to form association nanoparticles which gave stronger resonance light scattering effect, and formaldehyde can catalyze potassium bromate oxidizing pyronine Y resulting in decreasing of the intensity of resonance light scattering in sulfuric acid.

在稀硫酸介质中,溴酸钾与吡啰红Y能聚集成较大粒径的纳米微粒而使共振光散射增强,而甲醛能催化溴酸钾氧化吡啰红Y而导致体系共振光散射减弱,据此建立了一种灵敏、简单、快速测定血浆中痕量甲醛的新方法。

The role of the oxidant used was considered to be a quencher of the semiquinone radical anion of HA to its parent quinone to increase the relative concentration of HA so that the generation of SO~3^- via the electron transfer interaction between Hypocrellins and SO~3^2^- was accelerated.

氧化剂在这一反应中的作用为:将产生的竹红菌素半醌负离子自由基氧化至其母体醌,增加反应物的相对浓度,同时使竹红菌素与SO~3^2^-之间的电子转移循环进行,加速SO~3^-的产生。

In the mean time, the oxidation of the material will cause chain scission.

而材料在氧化的同时,会使分子产生断链。

It is proposed that the sturdiness of silicic acid congealed gel is a key factor to make the reaction of producing"Lead Trees" successful.

文摘:提出了生成"铅树"反应成功的关键是硅酸凝胶的坚固性,找到了较好的硅酸凝胶的制备条件,使该氧化还原平衡移动的反应成功率提高了90%以上。

The physical conten of the processes under consideration consists in the suffisient decrease of siver particle size(up to 102 times)which form the image in the gelation matrix as a result of oxidating-reducing transformations.

银影分散法增强照相影像是基于通过氧化还原反应,使再次形成的银影像颗粒缩小到原颗粒的约1/100,提高银遮盖力从而增强照相影像。

After pre-HE stress, the generated interface states can reduce the number of holes being injected into gate oxide generated by avalanche process during snapback stress, which causes the MOSFET snapback degradation to decrease in on-state and off-state modes.

在预加热电子应力后,HE产生的界面陷阱在snapback应力期间可以屏蔽雪崩热空穴注入栅氧化层,使器件snapback开态和关态特性退化变小。

Various chrome complex dyes(1:1 ratio) of mordant black 1,mordant black 7,mordant black 9 and mordant black 11 have been synthesized and sodium dichromate is been used as mordant agents instead of Cr3+ to oxidate dyes sufficiently.

还设计合成了媒介黑1、媒介黑7、媒介黑9和媒介黑11的高水溶性1∶1络合染料,重铬酸钠作为铬化试剂,染料得到了充分的氧化,无色配体多羟基羧基酸的引入使染料有很好的水溶性,该实验路线未见报道。

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