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In particular, an investigation was carried out into the different temperatures used on the degradation of sugars and amino acid and the extent of accumulation of browning intermediates, such as Amadori product, organic acid, brown pigment formation and pH changes.

研究了在不同反应温度(80、100、120℃)和不同反应时间下，体系中糖和氨基酸的降解程度，反应中间体：阿利德诺和有机酸的累积程度，类黑素的形成及pH变化程度。

I mainly have the following products: a calcium oxide, calcium phosphate, DCP, polydextrose, thorn Indus gum, locust bean gum, plastic-looking son, flaxseed gum, guar gum, xanthan gum, Carrageenan, konjac gum, CMC, casein, citric acid, sorbitol, VC sodium, salt and sodium phosphate, and other pharmaceutical intermediates!

我公司主要经营产品：过氧化钙、磷酸三钙、磷酸氢钙、聚葡萄糖、刺梧桐胶、刺槐豆胶、罗望子胶、亚麻籽胶、瓜尔豆胶、黄原胶、卡拉胶、魔芋胶、CMC、干酪素、柠檬酸、山梨醇、VC钠，磷酸钠盐及医药中间体等！

Is a professional engaged in production and management of neutral dyes, acid dyes and dye intermediates businesses.

青岛科瑞达精细化工有限公司是一家专业从事生产和经营中性染料、酸性染料及其染料中间体产品的企业。

Main products include phosphoric acid,phosphate,food additive,medicine intermediates,inorganic products,organic products etc.

主要经营的产品有：磷酸及磷酸盐、食品添加剂、医药中间体、无机产品，有机产品等领域。

In order to study the aldol condensation of 2.15-hexadecanedione on the surface of aluminium, the intermolecular condensation mechanism of acetone occurring on aluminum was simulated by using semi-empirical AM1 method embodied in MOPAC 6.0 program package. The optimized structures and geometry parameters of 5 transition complexes and 4 intermediates were given.First, 2 molecules of acetone coordinated with aluminum by electrostatic attraction.One atom of hydrogen of acetone migrated to aluminum because of t...

为了研究2，15－十六烷二酮在氧化铝表面的环合机理，选择小分子丙酮为模型化合物，用量子化学半经验AM1方法研究双分子丙酮在氧化铝表面的醛醇缩合机理，给出了反应过程中的5个过渡态和4个中间体的结构和几何参数，该催化反应可以认为是氧化铝分子与两分子丙酮分子发生静电络合作用，然后借助氧原子的负电荷导致脱氢并实现缩合，根据中间体的能量变化，推测有较稳定的铝复合物生成。

The experimental results indicates that the optimum pH range was 1.60~2.20, and the optimum H2O2 concentration was 10.0 mmol/L. The degradation ratio increased with the increasing concentration of ammonium ferric oxalate in the range from 0.1 to 1.0 mmol/L, but no significant increase in degradation ratio was observed when the concentration was above 1.0 mmol/L. When the concentration of fuchsin basic increased, the degradation ratio dropped, while the concentration of degraded fuchsin basic rised. When the concentration of fuchsin basic was low, the degradation followed first-order kinetics, but when it was high, the degradation could be fitted by zero-order kinetics. The absorbtion of fuchsin basic at 543 nm disappeared quickly, while the absorbtion of intermediates formed during the course of fuchsin basic dagradation at 298 nm vanished slowly.

试验结果表明：碱性品红降解的最佳初始pH为1.60~2.20，最佳初始H2O2浓度为10.0mmol/L；草酸高铁铵的浓度在0.1~1.0mmol/L时，碱性品红的降解率随浓度的增大而增大；高于1.0mmol/L时，则降解率相差不大；碱性品红的初始浓度增大，降解率减小，而实际降解的浓度则增加；碱性品红的浓度在低和高时，降解动力学过程不一致；随降解的进行，碱性品红在可见光区的吸收峰迅速消失，而降解过程中形成的中间产物吸收峰却消失很慢。

China has now completed the famous fluoroquinolone ketone and the ring lipid production base, has an annual output of 2,000 tons of medicines used as raw materials, preparations 2,000 tons, 1,500 tons of pharmaceutical intermediates production capacity, 400 million yuan in output value super.

现已建成国内著名的氟喹酮类和大环内脂类生产基地，拥有年产化学合成原料药2000吨，制剂2000吨，医药中间体1500吨的生产能力，年产值超4亿元。

To obtained useful chiral multi-substituted alkene-nitrile intermediates, the abnormal Beckmann rearrangement and their applications to the synthesis of the natural products were studied.

用甾体-17-酮肟的非正常Beckmann重排反应生成的相应的烯-腈化合物是合成18-去甲基甾体的重要中间体。

The abnormal Beckmann rearrangement of steroid-17-one oximes affords the corresponding alkylene-nitrile product as important intermediates for this purpose.

对九个甾体-17-酮肟的非正常Beckmann重排反应研究发现甾体分子上的取代基和立体化学对反应没有明显的影响（Scheme 1）。

The products include antioxidants,blowing agents,organic solvents, intermediates for pesticides,drugs and dyestuffs,perfumes,water glass,silicates,molybdenum compounds,graphite series,activated carbon,plasticizers,flame retardant,heat stabilizers,food additives and chemical reagents,etc.

注册商标有&鹿牌&合成樟脑，&桃浦&牌合成樟脑副产物和其他化工产品，&金牛&牌抗氧剂，发泡剂，水合肼，二甲基乙酰胺，二甲基乙醇胺，&海球&牌硅胶系列，&飞铃&牌磷氯，双乙烯酮衍生物，磷酸酯，乙烯利等，&泉字&牌，&水晶&牌各类泡化碱系列，&上胶&牌钼类化合物，石墨类产品系列。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。