This mechanism can also reasonably explain the fact that only molecular ionic peak of phenyl iso-thiocyanate and naphthyl iso-thiocyanate was presented in the GC/ MS spectra of diphenylurea and diphenyl thiourea.

But the GC/ MS analysis showed that it is phenyl isocyanate. This may be due to neutral loss of aniline in the cleavage of diphenyl thiourea in GC/ MS analysis.

但用GC/MS分析该晶体为异硫氰酸苯酯，这可能是在GC/MS分析过程中二苯硫脲发生了中性丢失苯胺的缘故。

Under mild conditions, at room temperature and ambient atmosphere, diphenyl thiourea could be synthesized through the reaction of aniline and CS 2 over AlCl 3 catalyst with high yield and high selectivity.

常温常压下，用AlCl3作催化剂催化苯胺和CS2进行反应，可以高收率和高选择性地得到二苯硫脲。

However, identified by melting point, HPLC/ MS/ MS, FTIR, UV and 1H NMR analyses, the pure crystal should be diphenyl thiourea.

然而，用熔点测定、HPLC/MS/MS，FTIR，UV和1H NMR等手段对此晶体进行分析，确定其为二苯硫脲。

Neutral Loss of Aniline in GC/ MS Analysis of Diphenyl Thiourea

GC/MS解析中二苯硫脲的中性丢失

The development and achievement of discourses in the 9th National Veterinary Pharmacology& Toxicology Science Conference Toxicological Studies of Diphenyl Oxide

第九届全国兽医药理学及毒理学学术讨论会的论文进展

Measurement of Sodium and Potassium in 4,4'-Diamino? Diphenyl Oxide by Atomic Absorption Spectrophotometry

原子吸收法测定4,4′-二氨基二苯醚中钠和钾

Alkylation of Diphenyl Oxide Catalyzed by Ionic Liquid

离子液体催化合成烷基二苯醚

Kinetics of curing reaction of benzoxazine precursors based on diphenyl oxide resin

苯并恶嗪二苯醚树脂中间体开环固化反应动力学

Preparation of modified diphenyl oxide resin glass cloth laminated sheet

改性二苯醚树脂及其玻璃布层压板的研制

Study on cure behavior of benzoxazine based on diphenyl oxide resin

苯并恶嗪二苯醚树脂的固化行为研究

Most of thorium was removed from the title ore in the 6V/ V% HCl solution using cupferron choroform, and uranium and remainder thorium eliminated from 10 V/ V% HCl solution by diphenyl guanidine ( DPG) Arsenazo ⅲ n-butanol.

试验了在6%（V/V）HCl中用铜铁试剂氯仿除去大部分钍，在10%HCl（V/V）中用二苯胍偶氮胂Ⅲ正丁醇除尽钍铀；

The electrochemical behaviour and the current property of the entitled complex have been investigated in NH_3 · H_20-NH_4Cl buffer solution ( pH 9. 5) containing EDTA and diphenyl guanidine. The mechanism of related reactions has been discussed.

本文研究了铍（Ⅱ）-钍试剂Ⅱ在EDTA、二苯胍、氨-铵缓冲溶液（pH9.5）中的电极行为和电流性质，并对有关机理进行了探讨。

Diphenyl guanidine has been prepared by using of Fe2 O3 as catalyst and70% ethanol as solvent, and simultaneously the by-product H2S is used to prepare thiourea.

本文提出了在70%乙醇溶剂中以氧化铁作为触煤合成二苯胍，同时回收副产硫化氢合成硫脲的联合制备方法。

Studies on Extraction Spectrophotometry of Ternary Molybdenum(ⅵ) 4 ( 5 Bromo 2 Thiazolylazo) Pyrocatechol Diphenyl Guanidine Ion Associate

钼（Ⅵ）-4-（5-溴-2-噻唑偶氮）邻苯二酚-二苯胍三元离子缔合物的萃取分光光度研究

Development of Synthetic Technique for Diphenyl Guanidine

二苯胍合成技术进展

It can further reacts with diphenyl guanidine to form a stable, neutral, violet-red 1: 2:1 ternary ionic-associate complex.

它可与二苯胍进一步反应形成电中性的稳定紫红色1∶2∶1三元离子缔合络合物。

Development of Diphenyl Guanidine

二苯胍的研制

The novel points of the article contain three aspects in the following: ( 1) With thiol sealing end polysulfide, poly tetrahydrofuran ether ( PTMG), diphenyl methane diisocyanate ( MDI) as raw materials, to prepare polysulfide-based polyurethane composite material.

本研究的新颖点主要包含以下三方面：（1）以巯基封端聚硫橡胶（PS）、聚四氢呋喃醚（PTMG）、二苯基甲烷二异氰酸酯（MDI）为原料，合成聚硫聚氨酯复合材料。

Studies on Self-association of Alcohols in Diphenyl Methane and Cross-association of Alcohols in Dibenzyl Ether by Gas-liquid Chromatography at Finite Concentrations

气液色谱有限浓度法研究醇类在芳烃溶剂中的自缔合及交叉缔合

Objective To explore the effects of exposure to diphenyl methane diisocyanate ( MDI) on serum levels of sexual hormones in male workers.

目的探讨二苯甲撑二异氰酸酯（MDI）对作业男工体内性激素水平的影响。