查询词典 benzoic

The antibacterial experiments show that its antibacterial activity is much better than these of benzoic acid and potassium sorbate, which means its development and application are wide.

文中对其抑菌活性作了考察，结果表明：富马酸甘油甲酯的抗菌活性强于常用防腐剂苯甲酸和山梨酸钾，具有广泛的开发应用前景。

The results showed that 3% to 5% propionic acid solution had better preservative action by soaking the sorosis for three minutes under normal atmospheric temperature;and 0.5% propionic acid,potassium sorbic acid and sodium benzoic acid solution all had better preservative action under low temperature of 5℃ to 8℃.

结果表明，在常温下，3～ 5 %的丙酸溶液浸果 3 min具有较好的防腐作用；在 5～ 8℃的低温条件下，0 。5 %浓度的丙酸、山梨酸钾和苯甲酸钠浸果 2 min均能达到较好的防腐效果。

Shrimps and crabs, strawberries, milk, eggs and other food and Tartrazine (E102-110 sunset yellow), benzoic acid (E210-224) and other additives and drugs are a lot of allergens.

虾蟹、草莓、牛奶、鸡蛋等食品以及酒石黄（E102－110落日黄）、安息香酸盐（E210－224）等添加剂和很多药物都是过敏原。

In this paper, we study the synergetic effects of second ligands and luminescence enhancement effects of doping ions starting from the binary complexes of europium and terbium with inexpensive benzoic acid and its derivatives, and improve the luminescence of complexes step by step.

本文从比较廉价的苯甲酸衍生物配体与稀土铕、铽的二元配合物入手，研究第二配体的协同效应和掺杂离子的荧光增强效应，逐步提高配合物的荧光性能。

The experimental results show that the adsorption of benzoic acid in trinal system by crosslinked chitosan resin, the addition of salts serve as salting-out, the apparent adsorption rate constantk(subscript t is increased according with the concentration of external-added salts increased.

实验结果表明，交联壳聚糖树脂在三元体系中吸附苯甲酸，外加盐起盐析作用，使得其表观速率常数k(下标 t随着外加盐浓度的增大而增大。

With the salt effect theory, the influence of external-added salts (LiCl, NaCl, KCl, LiBr, NaBr, KBr, MgCl2, CaCl2, SrCl2) concentration on adsorption rate of benzoic acid by crosslinked chitosan resin in trinal system (acid + water + salt) is discussed.

利用电位法，跟踪观察交联壳聚糖树脂在不同环境体系吸附低浓度苯甲酸的行为，结合盐效应理论讨论了在三元体系中，LiCl、NaCl、KCl、LiBr、NaBr、KBr、MgCl2、CaCl2、SrCl2 9种外加盐对交联壳聚糖树脂吸附苯甲酸吸附速率的影响。

The univalent radical derived from benzoic acid.

从苯甲酸衍生而来的一价化学基。

In 1HNMR,the signals of hydrogen iN2-(4-fluorobenzoyl) benzoic acid became wide and shifted upfield,and those in Phen,TPPO shifted downfield.The excitation and emission spectra were recorded at room temperature.

在 1H NMR中，形成配合物后第一配体苯环上的质子峰变为宽峰且移向高场，Phen和TPPO中质子化学位移移向低场。

The catalytic system composed of NHPI and transition metal ion can catalyze effectively ethane into acetic acid,cyclane into dicarboxylic acid,toluene into benzoic acid,alkene into epoxide,alkyne into acetylenic ketone,and amide into imide;NHPI used alone can catalyze adamantane to be carbonylated,hydrogen peroxide prepared by oxidization alcohol;NHPI combined with as...

NHPI与过渡金属离子组成的催化体系能高效地催化乙烷氧化为乙酸、环烷烃氧化为二元羧酸、甲苯氧化为苯甲酸、烯烃氧化为环氧化物、炔烃氧化为炔酮、酰胺氧化为酰亚胺；NHPI单独使用能催化金刚烷发生氧化羰基化反应、催化氧化醇制取过氧化氢；NHPI与有机助催化剂如偶氮二异丁腈、溴化季铵盐、蒽醌和醇等也能催化分子氧氧化反应。

Benzoic acid is both safe to people and acquirable.

苯甲醛是甲苯氧化的中间产物，容易被过氧化成苯甲酸。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。