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甲醛

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The concentration of the gas could be achieved by measuring the change of the conductivity. In the experiments, the gas sensor was prepared by spreading the water solution of carbon nanotubes between the interdigitated Au electrode, which was splashed on alumina. In this paper, three methods, such as mixing palladium and copper chloride, deoxidizing palladium and copper by chemical and electrochemical means, were used to doping palladium and copper in multi-wall carbon nanotubes.

实验中我们采用单壁和多壁纳米碳管作为敏感材料,在叉指金电极间涂布纳米碳管悬浊液作为气敏膜,用于有机挥发物如甲醛、苯、甲苯和二甲苯的检测,并着重研究了掺杂氯化钯和氯化铜盐溶液、化学和电化学方法掺杂钯和铜金属颗粒对多壁纳米碳管传感器的气敏性能的影响。

The effect were validated by different yeasts、different malts、10L fermentation equipment .

同时采用气相色谱和液相色谱对甲醛、乙醛、5-羟甲基糠醛含量进行分析,并以不同种酵母、不同种麦芽糖化,10L 发酵罐的小试实验对调节剂效果进行验证。

Company production of "Yadanni" card Hainan shirt, to the tropical Hainan unique tourism resources for the design elements, the use of imported cotton fabric mercerizing, reactive printing, including formaldehyde.

公司生产的&雅丹妮&牌海南衫,以海南独特的热带旅游资源为设计元素,采用进口丝光纯棉面料,活性印染,不含甲醛

Formaldehyde, methanol and methane have been utilized as methylating agents.

甲烷、甲醇和甲醛可用作反应的甲基化试剂。

However, most of the urban residents can only live in the apartment buildings made of reinforced concrete without the natural beauty of bamboos, what's more unbearable is the "modern environment pollution" coming from formaldehyde, aniline and the radiation from electromagnetic waves.

然而大部分的城市居民都只能生活起居于钢筋水泥混凝土构成的公寓楼里,不仅要接受苏东坡所云&居无竹&的&俗&的生活方式,更糟糕的是要忍受和适应甲醛,苯胺,电磁波辐射等种种现代化环境污染。

Methods: The segments were collected from the patient's feces and observed directly' and then fixed with 10% formaline, the morphology data of the proglottids were measured, recorded and analyzed.

收集的节片进行活体观察和甲醛固定后观察,测量记录其形态以分析大体标本的形态特点。

As an important species of organic compound, benzaldehyde and its derivatives were widely used in synthesis of many kinds of chemicals, such as Pharmaceuticals, spiceries, cosmetics, dyes, pesticide, etc. It has high annual demands, promising market and good economic benefits.

甲醛及其衍生物是一类重要的有机化合物,应用领域非常广泛,它可用于合成药物、香料、化妆品、染料和农药等多种化工产品,具有年需求量大、市场前景好和经济效益高的特点。

D-Pantothenyl alcohol, also called ortho-vitamin 85, is an important nutrition suppled substance. It has been widely applied in the field such as medicine, cosmetic, foodstuff, feed additive, and so on. The preparation of D-pantothenyl alcohol and the optimization of key factor are discussed mainly in this paper. It mainly includes three section.In the first section, with formaldehyde, isobutyl aldehyde and diethyl oxalate as the starting materials, D-pantolactone is prepared via three steps including condensation, catalytic hydrogenation and physical resolution. The specific rotatory power of the product is consistent with imported product.

D-泛醇,俗称原维生素B_5,属维生素B旋类营养增补剂,广泛应用于医药、化妆品、食品、饲料等领域,本文着重探讨了其制备及关键因素的优化,主要内容可分三部分:第一是D-泛内酯的制备,先以甲醛、异丁醛和草酸二乙酯为起始原料合成酮基泛内酯,再经催化氢化得到DL-泛内酯,然后通过物理拆分获得D-泛内酯,得到产物的比旋光度与进口产品基本一致。

Damien Hirst's calf in formaldehyde with gorgeous gold hooves; gem-studded butterflies; whole rows of diamonds on shelves, it was basically his previous work in a glittery and tackier version.

Damien Hirst 的作品,一头泡在甲醛里的小牛,有着金色的蹄子;珠宝钉饰的蝴蝶;一整排钻石呈列在架子上,这些都是他近期的作品,加上闪耀而俗气的视觉效果。

Three kinds of fluorescence polymer with the structure of acridine yellow were synthesized and the sensor for measuring nucleic acid was also fabricated.

论文第三部分开展了以荧光高分子为敏感试剂的新型光化学传感器载体研究,合成了N,N-二甲氨基对苯甲醛缩醛类聚合物,考察了苯环上不同取代基对荧光性能的影响,研究了该类敏感膜对乳酸、尿嘧啶、胸腺嘧啶和腺嘌呤的响应性能;合成了三种具有吖啶黄结构的荧光高分子,制成了测定核酸的传感器。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。