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The optimum conditions were obtained as follows: the weight ratio of fatty acids and 85%acetic acid is 1:4, ozonolysis temperature is 20-25℃, manganese/copper acetate as catalyst, and the amount of catalyst is 0.15% of fatty acids, oxidation decomposition temperature and oxidation decomposition time are 90-95℃ and 4 hours respectively. the yields of azelaic acid and pelargonic acid are 57.4% and 51.6% respectively.

以菜油酸为原料、85%醋酸水溶液为溶剂,经臭氧化、氧化分解、重结晶等过程制备壬二酸和十三烷二酸的最佳反应条件为:m:m(85%醋酸)=1:4,臭氧化温度20-25℃;氧化分解温度80-85℃,催化剂醋酸锰/醋酸铜用量为原料菜油酸质量的0.12%,氧化分解时间3h,重结晶溶剂壬酸的用量为5倍质量的氧化分解产物时,十三烷二酸的收率为58.3%,壬二酸的收率为57.2%。

Factors were reviewed, and optimum conditions was obtained,these experiments provide effective data for industrial manufacture.On the condition of using fatty acids of cottonseed oil as raw material,85% acetic acid as solvent,this paper prepared azelaic acid and pelargonic acid by ozonolysis, oxidation decomposition , extracted by boiling water,active carbon absorpting etc.

以棉油酸为原料、85%醋酸水溶液为溶剂,经臭氧化、氧化分解、沸水萃取、活性炭吸附脱色等过程制备壬二酸的最佳反应条件为:m:m(85%醋酸)=1:4,臭氧化温度20-25℃;氧化分解温度90-95℃,催化剂醋酸锰/醋酸铜用量为原料棉油酸质量的0.15%,氧化分解4h,壬二酸收率为57.4%,壬酸收率为51.6%。

An ester or a salt of perchloric acid .

氯化氢的水溶液,一种腐蚀性强酸。

With industrial monomer solution of dimethyldiallylammonium chloride as raw material, ammonium persulphate as initiator and Na_4EDTA as chelating agent,using the methods of adding initiator all at once,graduated increasing of temperature and stepwise initiation and polymerization,the polymerization process of preparing poly-dimethyldiallylammonium chloride was researched.

以一步法工业单体二甲基二烯丙基氯化铵为原料,以过硫酸铵为引发剂,采用一次性加入引发剂,梯度升温,分步引发水溶液聚合反应的方法,对制备聚二甲基二烯丙基氯化铵的聚合反应的工艺进行了优化研究。

Also, the corrosion performances and electrochemical behaviors of the phosphated/molybdate post-sealed HDG steel sheet in 5% NaCl solution were investigated, using Tafel polarization and electrochemical impedance spectroscopy measurements.

将热镀锌钢板先磷化再用钼酸盐溶液进行封闭后处理,通过塔菲尔极化和电化学阻抗测量研究其在5%NaCl水溶液中的腐蚀电化学行为,并与单磷化的热镀锌钢板进行了对比。

In addition, two water-solublephosphonic acid derivatives of C〓 and two diadducts of phosphonate derivative of C〓were also prepared. All the four compounds can be dissolved in DMSO, which is asolvent easy to be soluble in water. Their DMSO aqueous solution could haveprospective applications in the field of biomedicine.

研究了富勒烯膦酸酯衍生物的水解反应,首次合成了两个水溶性富勒烯膦酸衍生物,另外还合成了两个二加成的富勒烯膦酸酯衍生物,这四个衍生物均能很好地溶解在和水互溶的DMSO中,它们的DMSO水溶液可能在生物医学研究中可能会有很好的应用价值。

Results The optimum condition was μ-Bondapak C18 column with acetonitrile-water-0.05% phosphonic acid gradient elution system, 1.0ml min^(-1) flow rate, 267 nm. detection wavelength and 23~26℃ temperature. The analysis ended within 45 min.

结果 在色谱柱为μ-Bondapak C183.9mm×300mm,10μm;流动相A相为乙腈,B相为0.05%的磷酸水溶液;流速为1.0ml/min;检测波长是267nm及温度为23~26℃的条件下;经45min梯度洗脱,成功的分离分析了桂枝汤中的4个成分。

The photolysis of deoxyadenosylcobalmin and methylcobalamin in water was studied. The results showed that the speed of photolytic cleavage is related to photolytic energy.

采用HPLC检测法研究5,脱氧腺苷钴胺素和甲基基钴胺素的水溶液在不同光源及不同照度下的光解情况,结果表明随着光能量的增加光解速度加快。

The photooxidative degradation of Direct Fast Scarlet dyes in aqueous solution under solar irradiation by H 2O 2/ferrioxalate complexes has been studied.

以 H2 O2 /草酸铁络合物作光氧化剂,利用太阳光对水溶液中的直接耐酸大红进行了光氧化降解试验研究。

Photostability of SF in aqueous solution was investigated after being exposed in visible light in theillumination machine.

结果表明,阿魏酸钠水溶液在1μg/ml~10μg/ml浓度范围内光降解动力学过程总体趋向于一级反应。

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This paper demonstrated the impact on the environment today, an important factor is Education.

本文主要展示了当今影响环境的一个重要因素——教育。

Article 16 The power to interpret these Procedures shall remain with the Ministry of Agriculture and CAA.

第十六条本程序由农业部、国家认证认可监督管理委员会负责解释。

I am not quite sure if you can overcome the inertia.

我不确定你能否克服自己的惰性。