查询词典 potassium

A multi-metal alloy catalyst for hydrogenation of acetonitrile to ethylamine was prepared using hydrazine hydrate and potassium borohydride as the co-reductant.

以水合肼和硼氢化钾为共还原剂制备了多元合金催化剂，将其用于乙腈催化加氢反应制乙胺。

A novel hydroxyl terminated aminosilicone oil was synthesized using octamethylcyclo tetrasiloxane (D4) and the hydrolysis product of γ-piperazinepropylmethyldimethoxysilane (HD-110) as raw material and potassium hydrate as catalyst.

以八甲基环四硅氧烷(D4)、γ-哌嗪基丙基甲基二甲氧基硅烷(HD-110)水解物为原料，在氢氧化钾催化下，制备了羟基封端的新型氨基硅油。

Iodine in the test solution was oxidized to IO-3 by excessive amounts of potassium permanganate solution and sodium hypochlorite solution,and excess of the oxidants was removed by reacting with sodium sulfite solution.

采用过量联合氧化剂高锰酸钾-次氯酸钠氧化试液中碘至IO3-，剩余的高锰酸钾和次氯酸钠用过量的亚硫酸钠反应除去，利用IO3-的电活性，建立了在四硼酸钠-吐温-80底液中的线性扫描伏安法测定微量碘的方法。

The defective Langmuir-Blodgett film of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine induced by potassium oxalate(K2C2O4) and its effect on nucleation and growth of calcium oxalate monohydrate were investigated with the aid of atomic force microscopy and scanning electron microscopy.

采用扫描电子显微镜和原子力显微镜研究了经不同浓度草酸钾(K2C2O4)处理后二棕榈酰磷酯酰胆碱的缺陷LB膜及其对一水草酸钙成核和生长的影响。

A porcelain like film with protective and ornamental function can be obtained by anodizing aluminum alloy in potassium titantyl oxalate acidic solution.

草酸钛钾法瓷质阳极氧化可在铝及其合金材料表面形成一层外观类似瓷釉和搪瓷的氧化膜，具有较好的保护、装饰性。

The defect formation of Langmuir-Blodgett film of 1,2-dipalmitoyl- sn -glycero-3-phosphocholine injured by potassium oxalate was investigated with the aid of atomic force microscopy and fluorescent microscopy. The effect of the defects on the growth of calcium oxalate monohydrate was investigated by scanning electronic microscopy.

本文采用经草酸钾处理后存在缺陷的二棕榈酰磷酯酰胆碱的LB膜为模型，采用原子力显微镜、荧光显微镜和扫描电子显微镜研究了模型膜的缺陷畴区及其对一水草酸钙晶体生长的促进作用。

The changes of complex permittivity of pure-water,natrium oxalate,potassium permanganate and sodium chloride aqueous solution with different power were measured.It is shown that the changes of real part of the complex permittivity are all small and the imaginary part of the complex permittivity of electrolyte solution are obvious.

通过实验分别测量了纯水、草酸钠、高锰酸钾和氯化钠水溶液的复介电常数随微波测量功率改变的情况，发现4种待测物质的复介电常数实部都随微波功率改变较小，而草酸钠、高锰酸钾和氯化钠水溶液的复介电常数虚部随微波功率改变明显。

After the LB film of dipalmitoylphosphatidylcholine was treated by 2.5mmolL^(-1) potassium oxalate, the structural differentiation between liquid expanded phase and liquid condensed phase in LB film was strengthened and circular defects appeared.

经2.5mmolL^(-1)的草酸钾溶液对二棕桐酰磷脂酰胆碱的LB膜进行处理后，可强化LB膜中液态扩张相化E）和液态凝聚相之间的结构差异，原子力显微镜证实了圈状缺陷的存在。

Methods Twenty whole blood specimens of volunteers collected in tube containing three series:sodium heparin as anticoagulant were treated with glyceraldehydes and normal saline respectively, potassium oxalate as anticoagulant were treated with sodium fluoride.

由于离体全血标本中细胞仍在不停地糖酵解，在标本运转、放置、处理过程中会引起血葡萄糖浓度下降和乳酸浓度升高，使血糖和乳酸的浓度在测定前已经发生变化。

As the concentration of potassium oxalate increases from 0.3 mmol/L to 5.0 mmol/L, the patterns of the COM crystals change from a solid circle to a ring-shape, the number of patterns increases and the average diameter of the patterns decreases.

当 c (K2C2O4)为0.3 mmol/L时，主要诱导实心的圆形堆积的COM晶体图形，而当 c (K2C2O4)增加至5.0 mmol/L时，生成圈状COM晶体图形，且图形的半径减小。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。