diphenyl

diphenyl dichloromethane

二苯二氯甲烷

Polybrominated Diphenyl Ether.

六种物质.

The diphenyl-thiocarbazone extraction and spectrophotometry were developed for indirect determination of residual chlorine in water distribution system.

建立了采用双硫腙萃取光度法间接测定管网水中余氯的新方法。

The oxidative dimerization of aryl methanes in organic solvents by using alkaline catalysts is an important way to prepare diphenyl ethanes and diphenyl ethylenes.

甲烷在有机溶介质中、碱催化的氧化缩合反应,是合成二苯乙烯(烷)类化合物的重要途径.

This paper reviews the research and development of phosgene Derivates,including diphenyl ketone,chlorocarbonate,isocya-nate,acyl chloride and carbonates.

本文综述了光气游精细化学品的开发及生产进展,包括二苯甲酮类、氯代甲酯类、异氰酸酯类、酰氯类、碳酸酯类化合物。

A 77.5% of reduction in deposit formation could be obtained when the multiplex additive of tetralin/ tetralone binary donor and diphenyl diselenide was added into n-dodecane.

复合添加一试效果更明显，二元供氢与二苯二硒的复合添加可减少77.5%的裂解沉积。

As shown by study the extracting powers of two extraction agents are changed with acidy of developer extracting power N,N-diphenyl glycine is stronger than N-n-butyl glycine for 5 metal ions.

N，N—二苯甘氨酸对5种金属离子的萃取能力强于N—正丁甘氨酸。

By using Soxhlet extracting method,diphenyl-carbazide,and phenol-sulfate process,the content of total fatal,total flavonoid and total polysaccharids in bracken are 2.13%,2.20%,8.22% respectively.

结果表明:蕨菜中总脂肪、总黄酮总和总多糖含量分别为:2.13%,2.20%和8.22%。

Methods Using the assay system of peroxide value (POV), diphenyl picryl-hydrazyl (DPPH), the antioxidative activities of various extracts were studied and comparedwith VE and VC.

方法以过氧化值(POV)法和DPPH法对提取物进行抗氧化活性的测定,以维生素E(VE)和维生素C(VC)作抗氧化性能对照。

Electrotechnical products - Determination of levels of six regulated substances (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers

机电产品---六种受控物质（铅、水银、镉、六价铬、多溴联苯、多溴联苯醚）水平的测定

As the isocyan group is polymerized further, diphenyl carbondiimine may be formed, further polymerization of which forms a nitrogen-containing polycyclic aromatic compound.

异氰化合物进一步二聚成二苯碳化二亚胺，后者又聚合生成含氮杂环的多环烃。