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高锰酸钾

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A novel synthetic approach of 3,3'-azobis(6-amino-1,2,4,5-tetrazine) was firstly devised. Taking 3,6-bis(3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazine as a primary material, DAAT was synthesized by high pressure ammonolysis and potassium permanganate oxidation. Compared with the four-step reaction in the literature, this new approach was reduced to two steps with a yield of 58.1%. The intermediate and DAAT were characterized by elemental analysis, IR and NMR spectra.

自行设计了3,3'-偶氮双(6-氨基-1,2,4,5-四嗪)新合成路线、采用3,5-双(3,5-二甲基吡唑-1-基)-1,2,4,5-四嗪为原料,由文献报道的4步反应缩减为2步,经高压氨解、高锰酸钾氧化合成了DAAT,总收率大幅提高,达到58.1%,并采用元素分析、红外光谱、核磁共振光谱等进行了结构表征。

In conclusion, we detailedly investigated the variation of membrane system (mainly plasmalemma, amyloplast envelope, ER) with the potassium permanganate fixative method, nucleus and organelles with routinely fixative method, and their functions with cytochemical method (localization of phosphatases and Ca〓).

综上所述,本文运用高锰酸钾固定法研究了膜系统(主要指质膜、淀粉质体被膜、内质网)的变化,运用常规固定制样研究了细胞核和细胞器的变化,采用细胞化学方法(Ca〓和磷酸水解酶的定位)探索了细胞器和细胞核的功能。

Use of oxidizing microorganisms to kill in order to achieve sterilization efficacy of many compounds, such as common chlorine, bleaching powder, potassium permanganate, and so on.

利用氧化性来杀死微生物以达到灭菌效果的化合物还有很多,比如常见的氯气、漂白粉、高锰酸钾等。

In acid solution, Carbinol was oxidized formaldehyde,then it interacts with chromotropic acid and generates purple chemical compound.

甲醇在酸性溶液中,被高锰酸钾氧化成甲醛,再在硫酸介质中与变色酸生成紫色化合物,在 5 80nm处用 1cm比色皿比色测定。

Results: The chemiluminescence of this system was produced by the oxidation of potassium permanganate to dopamine.

结果:在硫酸环境中,高锰酸钾可以氧化多巴胺产生化学发光。

A new method for the determination of vauqueline by using the flow injection chemiluminescence method is presented.

报道一种微量测定马钱子碱的新方法,该方法是基于高锰酸钾对马钱子碱的氧化作用,建立了微量马钱子碱的流动注射化学发光分析法。

ABSTRACT: Objective To establish a new flowinjection chemiluminescence method for the determination of hydrocortisone.

目的 确定以高锰酸钾亚硫酸钠体系测定氢化可的松的流动注射化学发光分析方法。

The disinfection effect on joint applications of potassium permanganate with chlorine or chloramine, and the effect on major factors of water quality are carried out systematically in the study of enhanced disinfection. The monitoring index of total count of bacteria and total coliforms group, and the water samples of prepared in laboratory and of polluted water are applied.

在强化消毒的研究中,分别以实验室配水和受污染的水为试验水样,以总大肠菌群和细菌总数为检测指标,系统研究了高锰酸钾与氯或氯氨联用消毒作用及主要的水质参数对消毒效果的影响。

Chloride of lime at 15~30 mgL^(-1), potassium permanganate at 20~30 mgL^(-1), and 40% Yubao at 50~75μLL^(-1) coming next are recommended to be applied to the tobacco float seedling system TMY inactivation in water.

生产上池水TMV消毒可选择下列消毒剂:质量分数30%有效氯漂白粉15~30 mgL^(-1)和质量分数98%高锰酸钾20~30 mgL^(-1),其次为体积分数40% N-羟乙基亚甲胺多聚物75~100μLL^(-1)。

The results show that:(1) MnO2 deposition on the surface is the main factor resulting in cathode polarization, and the flowing of the solution can remarkably reduce this polarization. Furthermore, the buffered solution can reduce the polarization resulting from H+ concentration difference;(2) it is deduced from the polarization curve that the key factor influencing the performance of MFC is microbial number and metabolic rate and the electron transferring rate from microbial to electrode;(3) the power density arrives at the biggest, 824 mW/m2, when outer resistance is 300 Ω, which is accordance to the inner resistance,(284±18)Ω, deduced from I-V curve;(4) the influences of pH and permanganate concentration on cathode potential is in agreement to Nernst equation.

研究结果显示:(1) MnO2在碳纸表面的沉积是阴极极化的主要原因,而溶液流动可以明显降低极化程度;将高锰酸钾溶解在缓冲溶液中可以进一步降低阴极H+浓差极化;(2)根据极化曲线可以推断,影响电池输出功率的决定性因素应是微生物代谢反应速度和微生物与电极之间的电子传递速率;(3)随外电阻的变化,电池输出功率出现极大值824 mW/m2,相应外电阻为300 Ω左右,这与通过 I-V 关系曲线推导得到的电池内阻(284±18)Ω相吻合;(4) pH值和高锰酸钾浓度对电池阴极电极电势的影响符合Nernst方程。

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