methanal

1. The excess of methanal in food will harm the human body. There're many methods of detecting methanal in food. A quick detection reagent for methanal is described in the paper.
   食品中甲醛的含量超过标准，有碍人体健康，对食品中甲醛的检测有多种方法，这里介绍了一种快速检测甲醛的试剂。
2. Synthesis of low-free methanal melamine resin
   低游离甲醛三聚氰胺甲醛树脂的合成
3. Formaldehyde scavenger Green environmental protection, harmful solvents are free such as dimethyl benzene, methanal ect.
   绿色环保，不含二甲苯、甲醛等有害溶剂。
4. Or methanal Formaldehyde ( 37%) in water solution, called formalin, is used as a preservative, an embalming agent, and a disinfectant.
   通常以福尔马林（含甲醛37%的水溶液）形式出售，用于防腐剂、尸体保存以及消毒剂。
5. Traditional phenolic resin synthesized from phenol and methanal contains a great amount of free phenol, which limits its application as the material for food packaging.
   用苯酚-甲醛为原料的传统酚醛树脂中，游离酚的含量较高，使其在食品包装材料中的使用受到限制。
6. Methanal in air was collected using water as absorber, and then determined rapidly and simply by referring standard curve.
   用水吸收法采集空气中的甲醛，以吸光度差值△A与甲醛含量标准曲线对照，快速简便测定微量甲醛。
7. Probe into ventilating time after air disinfection via methanal oxygenation fumigation
   甲醛氧化熏蒸法行空气消毒后通风时间探讨
8. Method Applied the MKJ air disinfecting machine and methanal plus potassium permanganate Fumigating to disinfect the air in emergency room, and then compared the disinfecting effect among them.
   方法在急诊治疗室应用MKJ除菌消毒空气洁净器和甲醛加高锰酸钾熏蒸法对空气消毒效果进行比较。
9. Pure indium oxide gas sensor has higher sensitivity to gasoline than that to ethanol, butane, benzene, toluene, ammonia, and methanal, but selectivity was not as well as sensitivity.
   未掺杂的氧化铟气敏元件对汽油有较高的灵敏度，但选择性不是太好；
10. Saccharification is the primal process of beer production. Study on the Methanal Substitute in Beer Brewing
    啤酒糖化是啤酒生产的重要环节。啤酒生产糖化中甲醛替代品的研究探讨
11. [ Conclusion] The usage amount of benzoyl peroxide went beyond the limits allowed and methanal sodium bisulfite was also used illogically, which was found in quite a lot of flour and its products sold in Qufu market from native and external districts.
    [结论]曲阜市市场上销售的本地、外埠面粉及其制品相当一部分超量使用过氧化苯甲酰和违规使用甲醛次硫酸氢钠。
12. For the sake of contrast, the atmospheric SO_2 over Leshan urban area was determined by two analytical methods, methanal absorption and TCM absorption.
    本文探讨了大气中二氧化硫监测方法，采用甲醛法和四氯汞钾法对乐山城区大气中二氧化硫进行对照分析。
13. It introduces a process of synthesizingmethylenebisacrylamide from acrylamide and methanal, method of sample analysis and discusses the conditions and influencing factors.
    介绍了以丙烯酰胺和甲醛为原料合成亚甲基双丙烯酰胺的工艺过程和样品分析方法，并对工艺条件及影响因素作了讨论。
14. [ Methods] The temperature, humidity and methanal concentration in a sitting room decorated in half one year were detected and analyzed.
    [方法]对装修半年内的居室温度、湿度以及甲醛浓度的检测数据进行分析。
15. Measure and analysis of combustion light intensity wave of diesel fuel, emulsified oil and nebulized methanal are carried out under different pres-sures and oxygen density.
    在不同压力、氧浓度的条件下，对柴油、乳化油、甲醇喷雾的燃烧光强波进行了测量分析。
16. A Simple Method of Analyzing Micro Methanal in Gas
    气体中微量甲醛的简便分析
17. For Group B, the vitalight lamp radiation and steaming of methanal plus PP were used in combined air sterilization.
    紫外线灯照射与甲醛加PP熏蒸联合空气消毒为B组。
18. Conclusion Glutaraldehyde content determined value is affected by the negative interference of sodium nitrite and sodium bicarbonate and the positive interference of methanal.
    结论戊二醛含量测定值可受到亚硝酸钠、碳酸氢钠的负干扰和甲醛的正干扰作用。
19. A new analytic method of capillary column GC, by which the contents of acetic acid, formic acid, methanal, acetic anhydride and water in glacial acetic acid could be determined simultaneously, had been developed;
    提出了用毛细管气相色谱同时测定冰醋酸中乙酸、甲酸、甲醛、醋酐和水分含量的方法；
20. Quick detection reagent for methanal in food
    食品中甲醛的快速检测试剂
21. The detection rate of methanal sodium bisulfite was the lowest in steamed bun ( 0.0%) and the highest in vermicelli ( 22.9%).
    甲醛次硫酸氢钠检出（超标）率，馒头最低（0.0%），粉丝最高（22.9%）。
22. Results The disinfecting effect for MKJ air disinfecting machine is better than that of methanal plus potassium permanganate fumigating, which will shorten the time for disinfecting.
    结果MKJ除菌消毒空气洁净器的空气消毒明显优于甲醛加高锰酸钾熏蒸法，大大缩短消毒时间。
23. The Effect of Volume of Methanal Absorbent Solution for Determining Sulfur Dioxide in Air
    甲醛吸收液用量对测定空气中二氧化硫的影响
24. Methanal and ethanol fuel is of strategic significance from the standpoint of our energy multiple and energy security.
    甲醇和乙醇燃料从我国能源多元化和能源安全角度出发，有重大的战略意义。
25. Development of Computer Control System for Hydrogen Plant Based on Methanal Steam Reforming
    甲醇蒸气转化制氢装置计算机控制系统的开发
26. Observing and comparing the detection results between which were spiked with methanal and no spiked one were performed.
    结果甲醛对加热法、氢氧化钠法、氯化钯法、分光光度法等检测方法均可产生不同程度的干扰。
27. The urea methanal preparation is a key link for the production of large granule urea. The author describes design principle and method about the control system, the problems to be taken into account during the installation have been illustrated in detail.
    尿甲醛制备是大颗粒尿素生产中的一个环节，笔者阐述了其控制系统的设计原则和方法，并对现场安装中应注意的问题进行说明。
28. Methanal fumigation and prolonging the radiation time of ultraviolet rays could decrease the number of microbes in laboratory atmosphere.
    甲醛熏蒸和增加紫外线照射时间均能够减少空气中细菌数量。
29. Second, research of the effects of disinfection for laboratory atmosphere with ultraviolet rays irradiation and methanal fumigation.
    探寻紫外线照射和甲醛熏蒸实验室内空气消毒效果。

noun

1. a colorless poisonous gas

   Synonym:    formaldehyde