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- diethyl nitrosamine 二乙基亚硝基胺
- We have gotten 81.67% N,N diethyl o methyl aniline from the residue. 由此破坏了剩余过渡液中的共沸组成，为过渡液中其他组分的回收利用创造了条件。
- The result showed that both the rates of interdicting Nitrosamine and elimination of Nitrite could reach up to 90%. 实验结果表明：蚂蚁提取液对亚硝胺合成的阻断率和对亚硝酸根离子的清除率高达90%25。
- People in the high-incidence area gastric nitrosamine compounds were significantly lower than the district. 高发区人胃液中亚硝胺类化合物含量明显高于低发区。
- The chemistry ,content in food and human ingestion of nitrosamine were analysed. 食品中亚硝胺的生成、含量及被人体摄入情况；
- Vitamin C can boost immunity and can prevent the formation of a strong carcinogen nitrosamine. 而维生素C可增强免疫力，能阻止强致癌物质亚硝胺的形成。
- It is also known that sodium ethylate and diethyl phenylmalonate interact together to give ethyl Phenylacetate and diethyl carbonate. 众所周知，乙醇纳和二乙基苯基丙二酸酯反应可以得到乙基乙酸苯酯和二乙基碳酸酯。
- Animal and vegetable fats and oils - Determination of unsaponifiable matter - Method using diethyl ether extraction. 动植物脂肪和油。不可皂化物的测定。二已醚萃取法。
- With diethyl malonate as the extractant,the condition of extracting gold the electronic scrap was studied. 研究了采用萃取剂丙二酸二乙酯回收电子废弃物中金的方法。
- Through nitrosation, hydrogenate reducion, and acylate three steps, the yield surpass 80% for the diethyl malonate. 收率相对于丙二酸二乙酯达到了80%25以上。
- The results indiceated that Elaeagnus angustifolia is not only a pioneer tree,but also a good food to prevent forming nitrosamine from nitrite in body. 试验结果表明,沙枣不仅可以作水土保持、防沙造林的先锋树种,还由于它富含抗氧化物,可作为人体降低体内亚硝胺生成的良好补充源。
- N,N-Diisopropylethylamine(DIPEA) was prepared from diisopropylamine (DIPA) and diethyl sulfate (Et_2SO_4). 以二异丙胺 (DIPA)、硫酸二乙酯 (Et2 SO4 )为原料合成N ,N 二异丙基乙基胺 (DIPEA)。
- The carcinogenic mechanism of nitrosamine is that it may cause the changes of tumor related gene and suppressor gene in esophageal epithelisl cells. 其致癌机制研究显示，亚硝胺可引起食管上皮细胞相关癌基因抑癌基因发生改变，大大促进癌变。
- This paper studied on blocking nitrosamine synthesizing in the Western-style ham by adding the active extraction of citrus grandis peel. 本实验研究从柚皮中提取活性物质来阻断西式火腿中亚硝胺的形成。
- The preparation of 3,5-dinitroacetophenone from 3,5-dinitrobenzoic acid and diethyl malonate has been investigated. 本文采用丙二酸二乙酯合成法,以3,5-二硝基苯甲酸为原料,经酰化、缩合、脱酸等步骤合成了3,5-二硝基苯乙酮。
- The chemisorption was the important characteristic of the interaction of jamesonite with diethyl dithiocarbamate. 化学吸附是乙硫氮与脆硫锑铅矿相互作用的主要特征。
- This experiment is to imitate roast meat environment in the tube, the idea is finding out main factors of affecting nitrosamine formation. 试验主要是在试管里模拟腌肉环境,意在找出影响亚硝胺形成的主要因素。
- However, the worry concerning nitrosamine among consumers makes the longing for safe replacer for chromogenic reagent has long been our target. 然而,由于人们对随之可能产生的亚硝胺所存在的顾虑,使得午餐肉现有发色剂的安全使用和代用品的寻找一直成为多年来我们不断探讨的课题。
- Aim\ Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials. 目的研究以庚醛和原甲酸三乙酯为原料制备庚醛二乙缩醛的工艺条件。
- To establish a precticable method for quantifying of diethyl ketone(DEK)in the air of workplace. 建立可定量测定工作场所空气中二乙基甲酮(DEK)的实用方法。
