当存在三聚氰胺时，溶液的颜色将在几秒钟之内迅速从红色变为蓝色，而且能够同时通过肉眼观察和分光光度法检测到。
When melamine is present, the color of the solution changes from red to blue within seconds and can be measured both by visual inspection and spectrophotometry.
如果存在三聚氰胺，将会形成一种沉淀物质，这也可以同时通过肉眼观察和分光光度法进行判断。
If melamine is present, a precipitant is formed, which can also be assessed both visually and by spectrophotometry.
采用松香、三甲胺和环氧氯丙烷为原料，溶剂法合成了阳离子松香。
The cationic rosin was synthesized by solvent method, with rosin, trimethylamine and epoxy chloropropane as raw materials.
采用气相色谱-质谱（GC-MS）分析技术，选择离子检测法（SIM），开发出一种准确可靠、灵敏度高的测定奶粉及奶制品中三聚氰胺的新方法。
A new method for determination of melamine in milk powder and milk products by gas chromatography-mass spectrum with selected ion monitor(GC-MS/SIM) was established in this paper.
采用正交设计法分析了聚磷酸胺(APP)、季戊四醇(PER)、三聚氰胺(MEL)作为一种混合体系对聚苯乙烯(PS)的阻燃作用。
The flame retardance of a composite system consisting of ammonium polyphosphate (APP), pentaerythritol (PER) and melamine (MEL) used for polystyrene (PS) was studied with orthogonal design method.
利用热重-差示扫描量热法（TG-DSC）对六甲氧基甲基三聚氰胺（HMMM）与松香树脂酸的反应进行了研究。
TG-DSC method was used to study the affecting factors of the reaction between Hexakis(methoxymethyl)melamine(HMMM)and rosin acids and its kinetics.
介绍了尿素转化成三聚氰胺的化学反应机理及三聚氰胺低压催化法工艺的最佳反应条件。
This article introduces the chemical reaction mechanism of urea conversion into melamine. It also describes the optimum reaction conditions for low-pressure Catalytic melamine production process.
用批量平衡法研究了咪鲜胺及其三种主要代谢物bts44595、BTS44596和BTS45186在六种水稻土中的吸附。
Adsorption of Prochloraz and its major metabolites, BTS44595, BTS44596 and BTS45186, in six types of paddy soil were studied with the batch equilibrium method.
用动力学扭辫分析(tba)法研究了水溶性丙烯酸酯树脂与六甲氧基甲基三聚氰胺的固化反应。
The curing reaction of waterborne acrylic resin with HMMM has been studied by using the torsional braid analysis (TBA).
以三异辛胺萃淋树脂为微型柱固定相，采用流动注射在线预浓集与火焰原子吸收法联用技术，对微量钯的测定进行了研究。
A flow injection on line extraction chromatographic separation and preconcentration system is proposed for the determination of trace palladium by flame atomic absorption spectrometry (FAAS).
两种浸泡方法比较：三聚氰胺单体的迁移量微波法高于普通浸泡法。
It is also showed that migratory quantity of melamine monomer from sample pretreated with microwave method is more than conventional immersion method.
介绍了三聚氰胺反应媒循环法净化湿法磷酸复分解生产磷酸二氢钾的工艺技术，对由两种不同原料出发的工艺路线所得的产品进行了成本比较。
The process technology of manufacturing potassium dihydrogen phosphate by double decomposition with wet - process phosphoric acid purified by reaction medium circulation was introduced in this paper.
醇胺降解、装置腐蚀和溶液发泡是炼厂气醇胺法脱硫装置经常遇到的三类操作问题。
Ethanolamine degradation, equipment corrosion and solution foaming were three operation problems met frequently in the desulfurization units of refinery.
三聚氰胺是一种重要的化工中间体，尿素法生产三聚氰胺过程中会排放出大量的固体废弃物，既污染环境又浪费资源。
Melamine is an important chemical intermediate. In production of melamine by urea method, large amount of solid waste will be discharged which causes environmental pollution and loss of resource.
研究了用三聚氰胺结晶法由湿法磷酸生产磷酸二氢钾的结晶动力学过程。
The crystallization kinetics of potassium dihydrogen phosphate from wet-process phosphoric acid purified by crystallization of melamine phosphate was investigated.
研究了三聚氰胺结晶法净化湿法磷酸生产磷酸二氢钾的结晶过程。
Crystallization course of potassium dihydrogen phosphate from wet process phosphoric acid purified by crystallization with melamine phosphate was investigated.
采用模板剂导向自组装法以三乙醇胺为模板剂合成具有蚯蚓状孔道结构的二氧化钛介孔分子筛。
The mesoporous titanium dioxide was synthesized by using triethanolamine as a template with worm-like mesostructure via self-assembly route.
利用溶胶凝胶法添加适量三乙醇胺和三乙胺制备出锐钛矿纳米二氧化钛催化剂。
TiO_2 nanoparticles in anatase form were prepared by a sol-gel method with adding triethylamine and Triethanolamine.
高压法三聚氰胺装置熔融尿素升压泵运行过程发生多起断轴事故，使装置多次出现非计划停工。
The packing axle seal of the melt urea pump leaked seriously, leading to many harmful effects, so we revamped the form of axle seal.
高压法三聚氰胺装置熔融尿素升压泵运行过程发生多起断轴事故，使装置多次出现非计划停工。
The packing axle seal of the melt urea pump leaked seriously, leading to many harmful effects, so we revamped the form of axle seal.
应用推荐