查询词典 formaldehyde

Formalin A mixture of about 40% formaldehyde, 8% methyl alcohol, and 52% water (the methyl alcohol is present to prevent polymerization of the formaldehyde). It is a powerful reducing agent and is used as a disinfectant, germicide, and fungicide and also as a general preserving solution.

福尔马林：40﹪的甲醛、8﹪的甲醇以及52﹪的水的混合物（加甲醇目的是避免甲醛聚合），它是很强的还原物质，通常用作消毒、杀菌剂、杀真菌剂或作为常规储存液。

Because of its characteristic of extensive sources,serious toxicities,high-level pollution and long-term duration, formaldehyde is considered to be one of the most common pollutants. And the study of formaldehyde has become a lot and difficult spot of environmental and hygienical fields.

甲醛以其来源广，毒性大，污染水平高，污染时间长等特点，已经成为我国最主要的室内空气污染物之一，也是世界环境卫生领域的热点和难点。

Objective: to explore the mensuration of formaldehyde and sodium formaldehyde sulfoxylate for food.

目的：探讨食品中甲醛和吊白块的测定方法。

Objective To study the effects of formaldehyde on the lipid peroxidation and antioxidase in mouse brain tissues to explore the neurotoxic action of formaldehyde and its mechanism.

目的：通过观察甲醛对小鼠脑组织脂质过氧化及抗氧化酶的影响，探讨甲醛对小鼠的神经毒性及作用机理。

In addition, the pendent urea may be useful as a reactant for formaldehyde to reduce emissions of formaldehyde.

另外，下垂尿素也许是有用作为甲醛的反应剂能减少甲醛放射。

A novel catalytic resonance light scattering method for the determination of traces of formaldehyde in blood plasma was developed. It was based on the fact that potassium bromate reacted with pyronine Y to form association nanoparticles which gave stronger resonance light scattering effect, and formaldehyde can catalyze potassium bromate oxidizing pyronine Y resulting in decreasing of the intensity of resonance light scattering in sulfuric acid.

在稀硫酸介质中，溴酸钾与吡啰红Y能聚集成较大粒径的纳米微粒而使共振光散射增强，而甲醛能催化溴酸钾氧化吡啰红Y而导致体系共振光散射减弱，据此建立了一种灵敏、简单、快速测定血浆中痕量甲醛的新方法。

Dioxide quinoxaline formaldehyde semicarbazones and imines were synthesized by the reactions of 1,4-dioxide quinoxaline formaldehyde with aminourea or substituted anilines.

用1，4-二氧喹喔啉甲醛与氨基脲、苯胺、取代苯胺等反应，合成了11种1，4-二氧喹喔啉甲醛－缩氨脲和醛亚胺。

Methods With the small Climate-Chamber and 4160 formaldehyde-analyzer, quantity of formaldehyde released from some kinds of woodiness boards was analyzed under the different condition of temperature, relative humidity and ventilation cycle.

方法应用小型环境测试舱(60L)和甲醛测定仪，在一定温度(23℃)、相对湿度(45%)和空气交换率(1次/h)的条件下对各种木质板材(细木工板，医用胶合板，中密度纤维板等)的甲醛释放量进行测定。

Producted RF and CRF aerogels by process of sol-gel technics, dynamic-exchange, CO2 supercritical drying, and procedural increase in temperature carbonization methods, which have eximious capability and nanometer network structure; Systemic analysis various factors which effect gel course, such as ratio of reactants and the dosage of catalyst, and probed into the better experiments conditions(the concentration of resorcinol and formaldehyde is more than 2% and the value of R/C is between 50 and 300); During gel course , primary investigated the viscosity curve and particle size distribution of sol-solution, and analyzed the reason of catalyst dosage effects particle size of gel, and confirmed that the up-growth of gel follows the theory of " polymerize increase ".The experiment results indicated that ultrasonic with unvarying temperature disposal shortened gel time and optimized quality of gels, and the factors of ultrasonic effect gel reaction velocity were analyzed; Prepared organic aerogels using compounds of resorcin and hydroquinone substitute resorcinol reacts with formaldehyde the first time, and also optimized the proportion of resorcinol and hydroquinone (the proportion of hydroquinone in 10%～40%).

采用溶胶-凝胶工艺结合动态溶剂交换、CO2超临界流体干燥与程序升温碳化方法制备出性能优良、具有纳米网络结构的RF与CRF气凝胶；深入研究了反应物配比催化剂用量等条件对凝胶过程的影响，得到了较佳的RF凝胶制备条件(RF浓度应大于2%，R/C值取50～300)；初步研究了凝胶过程中的粘度、粒径变化情况，分析了催化剂用量影响凝胶中粒子尺度的原因，在实验上印证了凝胶生长遵循"聚增长"的理论；通过引入超声波改进了RF气凝胶的制备工艺，缩短了凝胶反应时间，提高了凝胶品质，并探讨了超声波促进RF凝胶反应作用的原因；首次用对苯二酚与间苯二酚复配制备了混合有机气凝胶，优化出复配比(对苯二酚含量为10%～40%)。2。

Methods 66 apartments decorated from one month to almost one year and 28 roughcast apartments were selected and the concentration of formaldehyde were determined by portable readability Digital formaldehyde analyzing machine.

选择6 6户装修时间为1个月～1年的居室为对象，2 8栋毛坯楼房为对照，采用直读式数字便携式甲醛分析仪检测室内空气中甲醛含量。

The father that if work,mad father, love annoys, disposition is too indrawn the be short ofing that the father of Mu Ne, resign oneself to adversity causes father easily to love is broken; Communicate time effectively between father and son, Mu Zizhi to be less than a hour on average to wait a moment every week, it is the cause that causes the child to become addiction.

如工作狂的父亲、爱愤怒的父亲、性格过于内向木讷、逆来顺受的父亲都易造成父爱的缺失；父子、母子之间的有效沟通时间每周平均小于一小时等等，都是造成孩子成瘾的原因。

These are vandal proof and they come with a locking mechanism.

这是野蛮的证据，他们来到了锁机制。